Schematic for Chronic Orange Memory Implanter

@copilot recommend a replacement for U3.

For the U3 component in your project, which is currently an STM32F405RGT6 made by STMicroelectronics, you could consider the STM32F407VGT6 as a possible replacement.

Not only does STM32F407VGT6 have the same pin configuration as the STM32F405RGT6, it also offers the same core features with some additional functions. For instance, the STM32F407VGT6 features an additional Ethernet MAC interface and a camera interface, which might be advantageous for certain applications. However, this comes with a slightly higher power consumption. You should verify whether these additional features are of use in your application and evaluate the influence on power requirements.

However, please note that while both the STM32F405xx and STM32F407xx series are compatible in terms of software, peripheral set, and pinout, they are not direct drop-in replacements due to differences in power schemes. Depending on the current power setup of your circuit, this may require some changes to your project when replacing U3. Always refer to the product's datasheet to fully understand the specifications and requirements of the new component.

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

To connect the STM32F405RGT6 (U1) and the Adafruit ILI9341 (U2), here are the connections you might need to make based on the typical use of these components. This assumes a setup using the SPI interface.

Connect PA5 (SPI1_SCK) on U1 to SCK on U2 to synchronize data transfer.
Connect PA7 (SPI1_MOSI) on U1 to MOSI on U2 to transmit data from U1 to U2.
Connect PA6 (SPI1_MISO) on U1 to MISO on U2 if read back of data from U2 is required (MISO is not always needed if data read from the ILI9341 is not required).
Connect PA4 (SPI1_NSS) or other GPIO from U1 to CS on U2 for chip-select functionality.
Connect a GPIO (for example, PA8) from U1 to D/C on U2 to distinguish between command and data.
Connect NRST or another GPIO from U1 to RESET on U2 to control the reset function of ILI9341.
Connect VCC and GND on U2 to the corresponding 3.3V and GND supply on U1. Please ensure the voltage level for the VCC pin of ILI9341 is compatible with your power supply. Typically, it is operated at 3.3V.
Connect LED on U2 to 3.3v for display backlight. Depending on the power requirements of the backlight, this may need to be driven by a GPIO through a current limiting resistor, or a transistor if the current is too high for a GPIO to handle safely.

Please note: You should always refer to the datasheets for both ICs and the user manual for any development board you are using to correctly identify pin functions and any specific requirements. The above is a general suggestion and your specific requirements may vary.

As for programming the STM32 for SPI communication with the ILI9341, you should implement the SPI protocol according to the specifications outlined in both their datasheets [1][2].

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

https://docs.flux.ai/introduction https://www.flux.ai/p/blog/generative-ai-for-hardware-design

To interface the STM32F405RGT6 (U1) with the Adafruit SPI TFT LCD Display Touch ILI9341 (U2), you could use the SPI protocol. Here is a possible connection scheme:

Connect U1's SPI1_SCK (PA5) to U2's SCK.
Connect U1's SPI1_MISO (PA6) to U2's MISO.
Connect U1's SPI1_MOSI (PA7) to U2's MOSI.
Connect U1's PA4 (you can use this pin as a Chip Select) to U2's CS.
Connect U1's PA8 (you can use this pin for the Data/Command line) to U2's D/C.
Connect U1's PA9 (you can use this pin for the LCD Reset line) to U2's RESET.
Connect U2's VCC to 3.3V power supply and GND to ground.

Please verify all these connections and their functionality with respect to your design requirements and constraints. The pin numbers provided assume standard SPI1 peripheral usage, therefore, depending on the implemented functionality change in code, the alternative roles of the mentioned pins might be needed. Don't forget to write/initiate the appropriate driver to enable communication between the STM32F405 MCU and the ILI9341 TFT display through SPI.

Source(s):

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please explain what U4 does.

@copilot please explain what U4 does.

U4 is an Adafruit ILI9341 TFT LCD Single Chip Driver. It is a powerful and versatile display controller that can handle resolutions up to 240x320 with RGB (Red, Green, Blue) colors. The display data is comprised of 240 dots x 320 dots and it operates with 1.65V - 3.3V I/O interface voltage. It can display both full color and 8-color display modes, and supports sleep mode for efficient power management, which makes it suitable for devices where power consumption is a concern[1].

This chip supports both parallel and serial interfaces to communicate with microcontrollers and processors. The serial interface can be three or four lines. It also contains a built-in Graphic RAM (GRAM) which stores display data[2].

The ILI9341 driver chip also supports different color depth formats such as 65k colors with 5,6,5-bits input for RGB and 262k colors with 6,6,6-bits input for RGB[3].

In general, this chip manages the rendering of imagery on LCD displays and interfaces directly with your microcontroller, allowing you to draw graphics, lines, characters, and much more. It is an ideal graphics driver for medium-size or small-size portable digital devices or projects where you would need an LCD display.

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[3] Page 60

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

To connect the STM32F405RGT6 (U1) to the Adafruit ILI9341 LCD (U2), you'll need to identify which interface to use. In this case, the most suitable interface is SPI (Serial Peripheral Interface), because both components support it.

The SPI communication typically involves four lines:

MISO (Master In Slave Out) — Data output from the slave.
MOSI (Master Out Slave In) — Data output from the master.
SCK (Serial Clock) — Clock pulses produced by the master.
CS/SS (Chip Select/Slave Select) — Allows the master to select the slave device.

Here's an example SPI connection:

Connect U1 PA5 (SPI1_SCK) to U2 SCK
Connect U1 PA6 (SPI1_MISO) to U2 MISO
Connect U1 PA7 (SPI1_MOSI) to U2 MOSI
Connect a free GPIO from U1 to U2 CS. For example, if you're not using U1 PB6, you can use it as the Chip Select line.

For the control signals D/C and RESET:

Connect U1 PA9 to U2 D/C
Connect U1 PA10 to U2 RESET

For the power supply:

Connect 3.3V power supply (from your board power source) to U2's VCC and LED pins.
Connect the GND of your supply to the U2's GND pin.

For the SD card interface (if you're planning to use the SD card feature of the LCD module):

Connect U1 PB12 (SPI2_NSS) to U2 SD_CS
Connect U1 PB13 (SPI2_SCK) to U2 SD_SCK
Connect U1 PB14 (SPI2_MISO) to U2 SD_MISO
Connect U1 PB15 (SPI2_MOSI) to U2 SD_MOSI

Remember, before initializing SPI communication, you should configure the GPIO of U1 in your microcontroller code. Please review the reference manual and datasheets for both STM32F405RGT6 and the ILI9341 for more accurate information about pin assignments and possible alternate functions, as the pin assignment can change based on the specific variant of STM32F4 you're using[1][2].

[1] Page 34

[2] Page 35

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

Based on the provided information, U3 is an STM32F405RGT6 microcontroller from STMicroelectronics. If you're looking for a direct replacement, you can consider the STM32F407 series which offer the same Cortex-M4 core but with additional features like a camera interface and an ethernet connection[1]. Here are two possibilities:

STM32F407VGT6: This is a higher performance variant of the STM32F405RGT6. It operates on the same core (Cortex-M4) and has a higher range of peripherals including an Ethernet MAC interface and a camera interface. However, please note that this is not a drop-in replacement, as the power scheme differs[2].
STM32F407ZGT6: This is similar to the STM32F407VGT6 but has even more I/O options.

Before making a decision, please verify the specific requirements of your design and consult the datasheets for these alternatives to ensure they meet your needs. You should also consider the differences in terms of power requirements, temperature ranges, and package dimensions[3][4].

[1] Page 13

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[3] Page 185

[4] Page 172

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

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recommend a replacement for U3. A good replacement has the same package and same...

@copilot recommend a replacement for U3. A good replacement has the same package and same number of pins

A suitable replacement for U3, which is an STM32F405RGT6 (an LQFP64 package), could be the STM32F407RGT6. This is part of the same STM32 family and also comes in an LQFP64 package. The STM32F407RGT6 has similar features to the STM32F405RGT6 but includes an Ethernet MAC interface and a camera interface which the STM32F405 does not have.

However, please remember to verify the pin compatibility and the functions to ensure they meet your project requirement, as even though they have the same package and the same number of pins, their functionalities may differ.

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connect U1 and U2

@copilot connect U1 and U2

To connect U1 (STM32F405RGT6) and U2 (Adafruit ILI9341), you would typically use the SPI (Serial Peripheral Interface) for communication because both components support it.

Here is a suggested way to connect these two devices, assuming you are using SPI:

Connect PA5 (SPI1_SCK) of U1 to SCK of the TFT LCD U2 - This will be the SPI clock line.
Connect PA7 (SPI1_MOSI) of U1 to MOSI of the TFT LCD U2 - This will be the Master Output Slave Input line for SPI communication.
Connect any free GPIO pin of U1 to D/C of the TFT LCD U2 - This pin will decide whether the SPI command is data or a command.
Connect PB0 or any other GPIO pin of U1 to RESET of the TFT LCD U2. This pin will be used to reset the LCD.
Connect PB1 or any free GPIO of U1 to CS of the TFT LCD U2. This pin can be used to enable or disable the TFT LCD.

Please remember to power both components correctly and connect all the necessary grounding lines. The actual pin assignment depends on your specific requirements and free I/O pins of your application. Some pins on STM32F405RGT6 are multipurpose and can be configured as needed using software.

Remember to configure the SPI interface properly in the STM32 MCU and set up the necessary data/command control for the TFT LCD driver in your firmware. The STM32 will be the SPI master device and the TFT LCD will be the SPI slave device. Check the datasheets for both components to confirm the SPI mode (polarity and phase settings) they need to run in[1].

[1] Page 60

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

One possible replacement for the STM32F405RGT6 (U3) could be the STM32F407xx series as mentioned in the attached documents. These microcontrollers are similar but not drop-in replacements, so you may need to slightly revise your design.

Remember to verify that the chosen replacement has all the necessary features and peripherals needed by your design as well as similar power, package type, and pin layout. Always check with the datasheet and reference manual of the new part to make sure it fits your project requirements.

However, if your circuit specifically requires the characteristics of the STM32F405RGT6, a better replacement could be another STM32F405xx variant with the same core and features but a different package or memory size, such as STM32F405VGT6, STM32F405ZGT6, or STM32F405OGT6, if acceptable.

Make sure to verify the availability, cost, and ease of procurement as these may affect your choice of replacement too.

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

To connect the STM32F405RGT6 microcontroller (designated U1) and the Adafruit ILI9341 TFT display (designated U2), you need to follow these steps:

Connect the SPI communication pins of both components. These include the Serial Clock (SCK), Master Out-Slave In (MOSI), and Master In-Slave Out (MISO) pins. The specific connections would be:
- U1's PA5 (SPI1_SCK) to U2's SCK
- U1's PA7 (SPI1_MOSI) to U2's MOSI
- U1's PA6 (SPI1_MISO) to U2's MISO (optional if we only write to the display)
Connect the TFT display's D/C (Data/Command Selection) line to an available GPIO (General Purpose I/O) pin on the microcontroller. This line lets the TFT display know whether the microcontroller is sending commands or data.
Connect the TFT display's RESET line to another available GPIO pin on the microcontroller for display reset control.
Connect the TFT display's CS (Chip Select) line to the appropriate SPI chip select pin on the microcontroller. This line is used to activate the SPI communication with the TFT display.
Make sure to connect all power and ground pins. VCC should be connected to a suitable power source (matching the voltage requirements of the display, typically 3.3V), and all GND pins should be connected to the ground line of your circuit.

Ensure to consult the datasheets and guidelines provided by the manufacturers of both the STM32F405RGT6 microcontroller[1] and the Adafruit ILI9341 display[2] for further details on making these connections. Please note that some wiring might require configuring the microcontroller's GPIO pins accordingly using firmware.

Please keep in mind, that without a full schematic it's difficult to provide a complete answer and the provided steps can change according to the application needs and board layout. If you need further assistance feel free to ask.

[1] Page 34

[2] Page 60

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please explain what U3 does.

kofron

@copilot please explain what U3 does.

U3 is a microcontroller (MCU) named STM32F405RGT6, manufactured by STMicroelectronics. This microcontroller is part of the high-performance STM32F4 series, based on the Arm Cortex-M4 32-bit RISC core[1].

The STM32F405RGT6 operates at a frequency of up to 168 MHz, featuring a Floating Point Unit (FPU) that supports all Arm single-precision data-processing instructions and data types. It's designed for applications in the -40 to +105 degrees Celsius temperature range, using a power supply between 1.8V to 3.6V[2]. It also implements a full set of DSP instructions allowing efficient signal processing and complex algorithm execution[3].

For memory, this microcontroller features Flash memory up to 1 Mbyte and up to 192 Kbytes of SRAM. It also offers an extensive range of enhanced I/Os and peripherals including three 12-bit ADCs, two DACs, and communication interfaces including I2C, SPI, USART, USB OTG, and CAN to name a few. Furthermore, it has a true random number generator and a flexible static memory controller[4].

As an MCU, it's a standalone component that integrates a processor, memory, and peripherals on a single chip. This allows it to perform a variety of tasks, such as reading inputs from digital or analog sensors, processing data, and controlling motor drives or displays in applications like industrial controllers, medical equipment, or home appliances and more[5].

All functional specifics of this component U3 in the context of your project would be determined by the firmware that's utilized.

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[3] Page 13

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

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connect U1 and U2

@copilot connect U1 and U2

https://docs.flux.ai/tutorials/tutorial-creating-a-part-from-scratch https://docs.flux.ai/tutorials/tutorial-reviewing-part-updates

To connect the STM32F405RGT6 (U1) and the Adafruit SPI TFT LCD Display Touch ILI9341 (U2), you can use the SPI communication interface since both components support it. An appropriate connection would be as follows:

Connect STM32F405RGT6 (U1) SCK with Adafruit ILI9341 (U2) SCK.
Connect STM32F405RGT6 (U1) MOSI with Adafruit ILI9341 (U2) MOSI.
Connect STM32F405RGT6 (U1) MISO with Adafruit ILI9341 (U2) MISO.
Connect STM32F405RGT6 (U1) GPIO (you'll need to select a suitable one) with Adafruit ILI9341 (U2) D/C.
Optional: For the touch feature, connect STM32F405RGT6 (U1) GPIO (select a suitable one) with Adafruit ILI9341 (U2) T_IRQ. The GPIO will need to be set and read appropriately in your firmware.

Then, you'll need to connect power and ground:

Connect STM32F405RGT6 (U1) VDD with Adafruit ILI9341 (U2) VCC.
Connect STM32F405RGT6 (U1) VSS with Adafruit ILI9341 (U2) GND.

Remember to add appropriate decoupling capacitors near the power supply pins of both components. The initialization and control of the SPI and GPIOs will have to be handled in your firmware according to the specifications given by the respective datasheets or libraries of each component.

This recommendation represents a general idea of how to connect these parts. Double-check each connection with the respective datasheet of the components for accurate pinouts.

Source(s):

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connect U1 and U2

@copilot connect U1 and U2

The STM32F405RGT6 microcontroller (U1) supports SPI, which aligns with the SPI support on the Adafruit ILI9341 LCD display module (U2). You can wire these two devices using this interface for communication.

Here's an overview of how to connect the specific pins:

U1's SPI SCK pin (SPI clock signal) to U2's SCK pin.
U1's SPI MOSI pin (Master Out Slave In data line) to U2's MOSI pin.
U1's SPI MISO pin (Master In Slave Out data line) to U2's MISO pin (If data from U2 to U1 is required).
A GPIO pin on U1 to U2's D/C pin (Data/Command select line).
Another GPIO pin on U1 to U2's CS pin (Chip Select).
U1's RESET pin to U2's RESET pin.
U1's 3.3V power output pin to U2's VCC pin.
U1's GND to U2's GND.

The specific pin names on U1 depend on the SPI peripheral being used (SPI1, SPI2, or SPI3). You may need to consult the STM32F405xx datasheet to determine which GPIO pins are used for SPI and appropriately map these to the U2 pin names I've mentioned.

Don't forget to configure the SPI peripheral on U1 in your firmware to match the specifications of the SPI interface on the ILI9341 display (check ILI9341 datasheet)[1].

Please confirm the exact pins used in your particular layout as well as the exact SPI peripheral being used on the STM32F405RGT6.

[1] Page 27

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

Based on the information given, U3 is an STM32F405RGT6 which is a part of the STM32F405xx and STM32F407xx family of Microcontrollers.

If a drop-in replacement is needed, you may want to consider another Microcontroller from the STM32F4 family such as the STM32F407RGT6, since it is stated in the documentation that these families "are fully pin-to-pin, software and feature compatible."

However as stated, the STM32F405xx and STM32F407xx are not drop-in replacements for the STM32F10xxx devices, so if your project is built around STM32F10xxx devices, modifications may need to be made.

It's also worth noting that the STM32F405xx and STM32F407xx do not have the same power scheme and only a few pins are impacted when changing between the families.

Also the peripherals set included changes with the device chosen. This means that the choice of the replacement will depend on the specific features and peripherals you need.

To make the most suitable recommendation, further details on the specific requirements of your project would be helpful, such as the peripherals or specific performance requirements.

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connect U1 and U2

@copilot connect U1 and U2

To connect the STM32F405RGT6 microcontroller (U1) to the Adafruit ILI9341 LCD Display (U2), you will need to determine the appropriate interfaces that both components support.

Unfortunately, I am unable to find specific matching interfaces from the pin list. Also, the display typically uses a Serial peripheral interface (SPI) as its communication protocol based on the ILI9341 datasheet. However, the specific SPI pins are not listed for your Adafruit ILI9341 display.

To assist you better, could you please provide the details of the SPI connections or any other specific connection details on U2 (the Adafruit ILI9341 LCD display)? Alternately, if you have a specific interface you intend to use (I2C, UART, etc.) for the connection, please provide this information as well. This will allow for a more detailed and accurate response.

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

https://docs.flux.ai/tutorials/tutorial-creating-a-part-from-scratch https://docs.flux.ai/Introduction/walkthrough-3-parts https://docs.flux.ai/reference/api-overview https://docs.flux.ai/Introduction/the-flux-method

To connect your STM32F405RGT6 microcontroller (U1) to the Adafruit ILI9341 SPI TFT LCD Display (U2), you'll be using the Serial Peripheral Interface (SPI) protocol. You can follow the steps below:

SPI Clock (SCK): Connect SCK (U2) to any of the SPI Clock pins (SCK) on the STM32. Examples are PA5 (SPI1_SCK), PB13 (SPI2_SCK), or PC10 (SPI3_SCK).
SPI Data In (MOSI - Master Out Slave In): Connect MOSI (U2) to the corresponding MOSI pins on the STM32 like PA7 (SPI1_MOSI), PB15 (SPI2_MOSI) or PC12 (SPI3_MOSI).
SPI Data Out (MISO - Master In Slave Out): Connect MISO (U2) to the MISO pins on the STM32 such as PA6 (SPI1_MISO), PB14 (SPI2_MISO) or PC11 (SPI3_MISO).
SPI Chip Select (CS): Connect CS (U2) to any available GPIO pin on the STM32 which you'll use to enable/disable the SPI communication.
Command/Data select: Connect D/C (U2) to another GPIO on the STM32. This pin is used to switch between command and data mode on the ILI9341.
Reset: Connect RESET (U2) to yet another GPIO on the STM32. Then you can trigger a reset by driving this GPIO low.
Power supply: Connect VCC (U2) to 3.3V (STM32) and GND (U2) to GND (STM32).
LED (Optional): You can connect the LED pin to a PWM-enabled pin on the STM32 if you want to control the backlight brightness.

Please note that, for the SPI interface on the STM32 (U1), you may have a few different SPIx options (i.e., SPI1, SPI2, SPI3). You can select any SPI interface based on your needs.

Also, don't forget to set the chosen GPIO pins as SPI and configure their settings accordingly in your STM32 firmware.

Source(s):

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recommend a replacement for U4.

@copilot recommend a replacement for U4.

Sure, as a replacement for the Adafruit ILI9341, you could consider the "Waveshare ILI9341". This is also a 2.2 inch TFT LCD screen supporting 240x320 resolution, SPI interface and full color display, similar to the Adafruit ILI9341. So, this could be a good alternative to consider. But before deciding to use this replacement, please inspect the pinout and specific features of the component to ensure it is fully compatible with your system.

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

https://docs.flux.ai/Introduction/the-flux-method https://www.flux.ai/p/blog/generative-ai-for-hardware-design

To connect the STM32F405RGT6 (U1) to the Adafruit SPI TFT LCD Display Touch ILI9341 (U2), you would typically use the SPI interface since the U2 device supports SPI and the U1 device comes with SPI peripheral capability.

You could follow an approach similar to the one outlined below:

SPI Data: Connect STM32F405RGT6's MOSI (Master Out Slave In) to U2's MOSI and MISO (Master In Slave Out) to U2's MISO if bidirectional data transfer is needed. If the communication is uni-directional, you might just need to connect MOSI from STM32F405RGT6 to MOSI on the U2.
- MOSI: U1 (PA7) to U2 (MOSI)
- MISO: U1 (PA6) to U2 (MISO), if necessary
SPI Clock: Connect the SCK (Serial Clock) pin from STM32F405RGT6 to the SCK pin on the ILI9341 to synchronize the data transfer.
- SCK: U1 (PA5) to U2 (SCK)
SPI Chip Select (CS): Connect a GPIO pin from STM32F405RGT6 to the CS (Chip Select) pin on the ILI9341. The chip select line is used to select the specific device for communication.
- CS: U1 (Pin , e.g. PC4) to U2 (CS)
Command/Data Pin (D/C): Connect a GPIO pin from STM32F405RGT6 to the D/C (Command/Data) pin on the ILI9341. This signal is used to switch between command and data modes.
- D/C: U1 (Pin , e.g. PC5) to U2 (D/C)
Reset Pin (RESET): Connect a GPIO pin from STM32F405RGT6 to the RESET pin on the ILI9341. This signal is used to reset the device.
- RESET: U1 (Pin , e.g. PC6) to U2 (RESET)

Remember to apply suitable power supply and ground connections for both devices:

Connect U1's VDD to U2's VCC
Connect U1's VSS to U2's GND

Note: The actual GPIO pins that you choose from the STM32F405RGT6 part for CS, D/C and RESET depends on your specific design needs and what GPIOs are available in your current project. Please adjust as necessary.

Source(s):

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connect U1 and U2

@copilot connect U1 and U2

To connect STM32F405RGT6 (U1) and Adafruit ILI9341 (U2) would involve connecting multiple pins between the two components. Due to the complexity of the components, here is a general example of how some of the pins might be connected:

U1.PA5 (SPI1_SCK) to U2.SCK (SPI Clock)
U1.PA7 (SPI1_MOSI) to U2.MOSI (SPI data from microcontroller to LCD)
U1.PA6 (SPI1_MISO) to U2.MISO (SPI data from LCD to microcontroller)
A free GPIO from STM32F405RGT6 (for example, U1.PB0) to U2.D/C (Data/Command control pin)
Another free GPIO from STM32F405RGT6 (for example, U1.PB1) to U2.CS (Chip Select)

This is a basic SPI connection. If the Adafruit ILI9341 uses the touch or the SD card feature, additional connections will need to be made. Please consult the specific datasheets for your components and tailor the connections as needed.

Also, note that both devices should share common power and ground connections.

Check if the mentioned pins on both components are available and free to use in your designs. If not, you may need to swap some of the pins. Always refer to the specific datasheets for your components for accurate information when connecting devices.

Please note that this just an example. The actual connection should be done according to your specific application requirements. [1][2]

[1] Page 20

[2] Page 34

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connect U1 and U2

@copilot connect U1 and U2

https://www.flux.ai/p/blog/generative-ai-for-hardware-design https://docs.flux.ai/tutorials/advanced-routing

To connect the STM32F405RGT6 (Designator U1) to the ILI9341 TFT LCD Display (Designator U2), we'll use the SPI (Serial Peripheral Interface) method which is supported by both components.

Here's a suggested way to connect:

Connect U1's 'SCK' pin to U2's 'SCK' pin.
Connect U1's 'MOSI' pin to U2's 'MOSI' pin.
Connect U1's 'MISO' pin to U2's 'MISO' pin.
Connect U1's 'PA4' (or any other GPIO, let's use PA4 for this example) pin to U2's 'CS' pin.
Connect U1's 'PA3' (or any other GPIO, let’s use PA3 for this example) pin to U2's 'D/C' pin.
Connect U1's 'PA2' (or any other GPIO, let’s use PA2 for this example) pin to U2's 'RESET' pin.

Also, connect VDD/VCC pins and the GND pins of U1 and U2 to provide power.

The SPI mode of communication is generally faster than I2C and UART, which will deliver a good performance for your TFT LCD display operations. Please remember to initialize the selected GPIO Pins (PA4, PA3, PA2) as output in your firmware and set up the SPI interface with the right settings (SPI Mode, Clock Speed, etc.).

Remember to confirm these suggested connection points with the specific pin functions provided in both component datasheets. The actual pins can differ based on your specific chip variants and available GPIOs on your devices. Always remember to power down your circuit before making or changing connections to avoid any potential damage.

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

https://docs.flux.ai/introduction https://www.flux.ai/p/blog/generative-ai-for-hardware-design

According to the schematics and datasheets, you could connect the STM32F405RGT6 (U1) to the Adafruit ILI9341 TFT LCD Display (U2) like so:

SCK (SPI clock): Connect PA5 on U1 to SCK on U2.
MOSI (SPI data out/Master Out Slave In): Connect PA7 on U1 to MOSI on U2.
MISO (SPI data in/Master In Slave Out): Connect PA6 on U1 to MISO on U2.
CS (Chip Select): Connect any available GPIO on U1 that you want to use for chip select to CS on U2, for example, PA4.
D/C (Data/Command): Connect another available GPIO on U1 to D/C on U2, for example, PB0.
RESET: You can control the reset of U2 from U1 by connecting it to any available GPIO pin, for example PB1.

Please note to make sure that the SPI settings match between the microcontroller and the display. The SPI interface mode, clock speed, data order, etc., should be the same on both devices.

Do not forget to connect the power supply (VCC and GND) and LED backlight lines. Please consult the datasheets of U1 and U2 for more details or specific requirements. Also, the touch controller on U2 might require additional connections if you plan on using it.

Remember that this connection scheme implements an SPI communication protocol, and you will need to implement SPI in your software to correctly communicate with the LCD.

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connect U1 and U2

@copilot connect U1 and U2

https://docs.flux.ai/introduction https://www.flux.ai/p/blog/generative-ai-for-hardware-design

In order to connect the STM32F405RGT6 microcontroller (U1) with the Adafruit ILI9341 SPI TFT LCD Display Touch (U2), we can use the SPI interface. Here is a possible connection scheme.

Connect U1.SCK (Serial Clock) to U2.SCK (Serial Clock).
Connect U1.MISO (Master In Slave Out) to U2.MISO (Master In Slave Out).
Connect U1.MOSI (Master Out Slave In) to U2.MOSI (Master Out Slave In).
Connect U1.PA4 (SPI1 NSS or SPI1 Chip Select as per STM32F405RGT6) to U2.CS (Chip Select).
Connect U1.RESET to U2.RESET.
Connect U1.PWR (3.3V power supply or as recommended by your microcontroller) to U2.VCC (Power input for the display).
Connect U1.GND to U2.GND.

For the touch function, if you are planning to use it, you will need to connect:

U1.GPIO_T_DIN to U2.T_DIN
U1.GPIO_T_DO to U2.T_DO
U1.GPIO_T_IRQ to U2.T_IRQ
U1.GPIO_T_CLK to U2.T_CLK
U1.GPIO_T_CS to U2.T_CS

For the SD card, if you plan to use it, similar SPI and GPIO lines need to be connected.

Please note that GPIO_T_.. and GPIO_SD_.. need to be replaced with their respective GPIO pins from the STM32F405RGT6.

Make sure to configure the corresponding pins in your MCU as SPI or GPIO in your code as required.

Would you like me to connect the components based on these suggested connections in the schematic editor?

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connect U1 and U2

@copilot connect U1 and U2

To connect the STM32F405RGT6 (U1) microcontroller and the Adafruit ILI9341 (U2) display module, you need to consider the interfacing capabilities of both components.

The STM32F405RGT6 (U1) has USART, SPI, and I2C interfaces, while the ILI9341 display (U2) can be interfaced using the SPI interface.

Here's a proposal on how to connect these two components using the SPI interface:

Connect MOSI (Master Out Slave In) pin of U1 to the MOSI pin of U2. These pins are used to send data from U1 (the master device) to U2 (the slave device).
Connect MISO (Master In Slave Out) pin of U1 to MISO pin of U2. These pins are used to send data from the slave device (U2) to the master device (U1).
Connect SCK (Serial Clock) pin of U1 to the SCK/T_CLK pin of U2. The SCK line carries the clock signals from the master (U1) to dictate when data lines change state.
Connect the CS (Chip Select) pin of U1 to the CS pin of U2. The CS pin is used to select the U2 device when U1 wants to communicate with it.
Connect the RESET pin of U1 to the RESET pin of U2. The RESET pin allows the U1 to reset the U2.
Ensure the GND (ground) pin of U1 is connected to the GND pin of U2. The GND pin of both devices should be connected for a common ground reference.

Please consult both U1 and U2 datasheets to be sure about pin assignments and capabilities. The steps above are a general guide and the specifics may depend on your circuit needs and design constraints.

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how do I connect U1 and U2?

@copilot how do I connect U1 and U2?

To connect U1 (STM32F405RGT6) and U2 (Adafruit SPI TFT LCD Display Touch ILI9341), you'll need to establish an SPI (Serial Peripheral Interface) connection. The STM32F405RGT6 microcontroller supports SPI communication and the ILI9341 display uses SPI for data transfer.

Here's a basic connection guideline:

SCK (Serial Clock): Connect the SCK pin of the U2 (ILI9341 display) to an SPI SCK pin of U1 (STM32F405RGT6). You can use PB3 (SPI1_SCK) or PB13 (SPI2_SCK) or PC10 (SPI3_SCK) on the STM32F405RGT6.
MOSI (Master Out Slave In): Connect the MOSI pin of the U2 (ILI9341 display) to an SPI MOSI pin of U1 (STM32F405RGT6). You could use PA7 (SPI1_MOSI) or PB15 (SPI2_MOSI) or PC12 (SPI3_MOSI) on the STM32F405RGT6.
MISO (Master In Slave Out): This pin is not used by the ILI9341 display, so you don't need to connect it.
CS (Chip Select): Connect the CS pin of the U2 (ILI9341 display) to any GPIO pin of U1 (STM32F405RGT6). This GPIO pin will be used to select the ILI9341 display by setting the pin low before SPI communication.
D/C (Data/Command): Connect the D/C pin of the U2 (ILI9341 display) to any GPIO pin of U1 (STM32F405RGT6). This pin is used to switch between data and command mode on the ILI9341 display.
RESET: Connect the RESET pin of the U2 (ILI9341 display) to any GPIO pin of U1 (STM32F405RGT6). This pin is used to reset the display.
LED: Connect the LED pin of the U2 (ILI9341 display) to a 3.3V supply. This pin powers the LED backlight of the display.
GND: Connect the GND pin of U2 (ILI9341 display) to a ground pin of U1 (STM32F405RGT6).
VCC: Connect the VCC pin of U2 (ILI9341 display) to a 3.3V pin of U1 (STM32F405RGT6).

Remember to configure the chosen GPIO and SPI pins appropriately in your firmware.

Note: The exact pin names on the STM32F405RGT6 might vary based on the specific package and configuration of the chip. Please consult the datasheet of your specific model for the exact pin names and functions.

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connect U1 and U2

@copilot connect U1 and U2

https://docs.flux.ai/introduction https://www.flux.ai/p/blog/generative-ai-for-hardware-design

To connect the STM32F405RGT6 (U1) and ILI9341 TFT Display (U2), we can use the SPI protocol since both components support it. You can use the SPI1 of U1 to connect with U2.

Please follow these steps:

Connect PA5 (SCK of SPI1) of U1 to SCK of U2.
Connect PA6 (MISO of SPI1) of U1 to MISO of U2.
Connect PA7 (MOSI of SPI1) of U1 to MOSI of U2.
Additionally, the CS (Chip Select) pin of U2 should be connected to any GPIO pin of U1 which is not used by SPI. For example, you can connect CS of U2 to PA4 of U1.
Connect D/C pin of U2 to another GPIO on U1, for example, PC4.

Note that these are example connections. You may need to choose different GPIO pins depending on the needs of your particular project or the requirements of other components. Also don't forget to connect the power supply and ground pins of the devices.

Is this helpful or do you need information on other connections?

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

As an AI, I can recommend the part based on the given information and general device compatibility. If you're looking for a microcontroller with similar capabilities to the STM32F405RGT6, the STM32F407VGT6 could be a good choice. It also belongs to the same family (STM32F4) and has the compact LQFP64 package.

The STM32F407VGT6 also has similar performance and memory features like the STM32F405RGT6 such as the Arm® Cortex®-M4 32b core with FPU, 210DMIPS, 1MB Flash memory, and 192+4KB RAM. It also comes with communication interfaces like USB OTG HS/FS and Ethernet.

However, note that it may not be a direct drop-in replacement. Any replacement part you choose might have a slightly different pinout or peripheral set. It's crucial to carefully check the datasheets and specifications of potential replacement parts before making a final decision.

Also, please note that availability and cost should be taken into consideration while choosing a replacement component.

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please minimize cost of U3.

@copilot please minimize cost of U3.

If you would like to minimize the cost of U3, a good approach is to explore alternative microcontrollers that offer similar functionality to the STM32F405RGT6 but at a lower price point. Be sure to check that the alternative microcontroller has a compatible pin layout and satisfies necessary requirements i.e., peripherals, speed, package type, and memory.

However, cost savings might result in trade-offs, such as more complex programming, less community support, or lower performance. Please consider these carefully before switching to a cheaper option.

Another approach is to reduce the total cost by bulk buying the STM32F405RGT6. A lot of suppliers offer discounts when buying in bulk. This can be more economical if you plan to produce multiple units of your design.

Always remember to compare prices from different suppliers before making a purchasing decision to ensure you are getting the best deal. Always consider the reliability of the supplier as well. Lastly, consider possible tariff costs if the components are being shipped internationally.

Please note that making such changes might need a revision of the current PCB layout and checking the compatibility of the new microcontroller with the other components in your design.

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recommend a replacement for U3. A good replacement has the same package and same...

@copilot recommend a replacement for U3. A good replacement has the same package and same number of pins

Given that you need to replace U3, which is the STM32F405RGT6 and given that it should have the same package and same number of pins, I suggest that you consider the STM32F407RGT6.

The STM32F407xx and STM32F405xx are part of the STM32F4 series and according to the provided documents, they are similar in their pin arrangement, peripherals, and features. They offer a high degree of freedom during the development cycle due to their ability to use different memory densities, peripherals, and performances.

However, as also noted in the excerpts you provided, the STM32F405xx and STM32F407xx are not completely drop-in replacements for each other. They don't share the exact same power scheme, but the migration process should still be manageable as both microcontrollers are mostly compatible. Please make sure to verify that the microcontroller replacement would suit your project requirements, particularly taking into consideration whether any changes in the power scheme would impact your specific application.

Someone is typing...

recommend a replacement for U3. A good replacement has the same package and same...

@copilot recommend a replacement for U3. A good replacement has the same package and same number of pins

The STM32F407RGT6 can be a suitable replacement for the STM32F405RGT6 (U3 in your project). It belongs to the same STM32F4 family, has the same LQFP64 pin package, and a similar set of peripherals. The key difference between the STM32F405 and STM32F407 is that the latter has an Ethernet MAC peripheral, which could be an extra feature for your design, even if you don't intend to use it initially.

Though they are pin-to-pin compatible, please review the specific pin functions as they may differ between models. Also, it's crucial to examine the power scheme as mentioned in the STM32F4 family documentation.

Make sure that the replacement part is compatible at the software level with your existing codebase for the STM32F405 if you're migrating an existing design.

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

The STM32F405RGT6 is an ARM Cortex-M4 based microcontroller from ST Microelectronics. To recommend an alternative, I'll look for a microcontroller with a similar architecture, comparable number of I/O pins, and support for the same peripheral interfaces.

Here are a couple of alternatives:

STM32F407VGT6: This is a direct upgrade from the STM32F405RGT6. It's from the same STM32F4 series, and it has the same ARM Cortex-M4 core. The main difference is that it has a few more peripheral interfaces.
NXP LPC1768: This microcontroller also has an ARM Cortex-M4 core. It has a similar number of I/O pins and supports the same peripheral interfaces as the STM32F405RGT6. However, it has slightly less Flash memory (512KB compared to 1MB on the STM32F405RGT6).
Infineon XMC4500-F100K4096 AB: This microcontroller uses the ARM Cortex-M4 core and has a similar number of I/O pins. It also supports the same peripheral interfaces. However, it has significantly more Flash memory (4MB compared to 1MB on the STM32F405RGT6).

All of these alternatives should be suitable replacements, but it is crucial to verify that they meet your project's specific needs before making a final decision. Always check the full specifications against your project requirements and consider the availability and cost of the components. Be aware that changing microcontrollers might also require adjustments to your firmware.

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

One possible replacement for U3 (STM32F405RGT6) is the STM32F407xx family, which is fully pin-to-pin, software, and feature compatible with the STM32F2xx devices. This will allow you to try different memory densities, peripherals, and performances (FPU, higher frequency) giving you a greater degree of freedom during the development cycle.

However, it's crucial to note that the two families do not have the same power scheme. Hence, they can't be used as drop-in replacements for each other. The transition should remain simple as only a few pins are impacted[1][2].

It's advised to read the STM32F407xx datasheet in conjunction with the STM32F4xx reference manual for more detailed specifications and compatibility information[3]. Always remember to thoroughly check the datasheets of the components and how they affect the overall system design before making any replacements.

[1] Page 13

[2] Page 16

[3] Page 12

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

Looking for a replacement for U3 (STM32F405RGT6), it's important to consider a component that maintains the same footprint and pin compatibility, as well as similar or superior specification.

One such replacement could be STM32F407RGT6 also from STMicroelectronics. The STM32F407RGT6 maintains the same LQFP64 package and pinout, but has additional features such as Ethernet, and camera interface which may provide more flexibility for future upgrades.

However, it's always important to carefully consider all aspects of the replacement microcontroller and how it could affect your design before making a change. It would also be wise to double check the datasheet for exact details of pins and functionalities.

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recommend a replacement for U4.

@copilot recommend a replacement for U4.

You are currently using the Adafruit ILI9341 TFT LCD Single Chip Driver in your design which supports a resolution of 240RGBx320 and full color display. A suitable replacement would be the ILI9488 TFT LCD Single Chip Driver. It also supports a full-color display but with a higher resolution of 320RGBx480. However, the exact replacement may depend on other factors such as the interface needed, power requirements, and physical dimensions. Both chips support SPI and parallel interfaces, but please check the specific requirements of your project to make sure.

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recommend a replacement for U3. A good replacement has the same package and same...

@copilot recommend a replacement for U3. A good replacement has the same package and same number of pins

Sure, I would recommend the STM32F407VGT6 as a potential replacement for U3 (STM32F405RGT6). Both microcontrollers are from the same STM family and have the same 64-pin LQFP (Low Profile Quad Flat Package) format, meaning they share the same mechanical dimensions, pinout, and layout.

However, please note that while the pin count and package are identical, the STM32F407VGT6 has some extra features compared to the STM32F405RGT6, such as an Ethernet MAC peripheral. Before going ahead with the replacement, it's necessary to check if these extra features don't interfere with your current layout or design requirements.

Remember, any replacement should be thoroughly tested to ensure there's no unexpected behaviour in your specific application.

Someone is typing...

connect U1 and U2

@copilot connect U1 and U2

https://docs.flux.ai/Introduction/the-flux-method https://docs.flux.ai/introduction

To interface the STM32F405RGT6 microcontroller (U1) with the ILI9341 TFT LCD display (U2), you can use the SPI interface, as U1 supports SPI communication and U2 can also communicate via SPI.

Here's a suggestion for the SPI communication connections between U1 and U2:

Connect U1's SCK (SPI Clock) pin to U2's SCK pin.
Connect U1's MOSI (Master Output Slave Input) pin to U2's MOSI pin.
Connect U1's MISO (Master Input Slave Output) pin to U2's MISO (U2 might reference this pin as T_DO).
Connect U1's GPIO pin (you'll need to choose from available ones) to U2's D/C (Data/Command select) pin.
Connect U1's another GPIO pin to U2's CS (Chip Select) pin.
U1's RESET pin should be connected to U2's RESET pin.
Connect U1's 3.3V power output pin to U2's VCC pin.
Connect U1's GND pin to U2's GND pin.

Please note, before integrating these changes into your design, you should review the datasheets of STM32F405RGT6 and ILI9341. There, you can clarify whether these pins support 3.3V logic levels, as some displays only support 5V logic levels.

At the software level, you would need to initialize the SPI peripheral in your firmware, and then write a control driver for the ILI9341 display.

Remember that it's best to test your connections on a breadboard or similar before committing to a PCB layout.

Let me know if you need any more help with this.

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recommend a replacement for U3.

@copilot recommend a replacement for U3.

The best replacement for U3, which is an STM32F405RGT6 microcontroller, would be another high-performance micrcontroller with a similar pinout and features.

One such alternative could be the STM32F407xx series. The STM32F407xx and STM32F405xx are part of the STM32F4 family and are fully pin-to-pin, software and feature compatible with the STM32F2xx devices. They also maintain a close compatibility with the whole STM32F10xxx family, making them potential candidates for replacement[1].

Please note that these are not drop-in replacements for the STM32F10xxx devices, as the two families do not have the same power scheme[2].

Before making any changes, it is necessary to verify the suitability of the new part with the specific application and project requirements. It's also crucial to revise the software to accommodate potential differences in memory layout, registers, and peripherals.

Remember to always check the datasheet for complete specifications before replacing any component in your design.

[1] Page 13

[2] Page 16

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recommend a replacement for U3. A good replacement has the same package and same...

@copilot recommend a replacement for U3. A good replacement has the same package and same number of pins

Given the requirement that the replacement for U3 (STM32F405RGT6) must have the same package and the same number of pins, I would recommend the STM32F407RGT6.

Both the STM32F405RGT6 and the STM32F407RGT6 belong to the STM32F405xx/407xx family, but the STM32F407RGT6 has additional features such as an Ethernet MAC interface.

Similar to the STM32F405RGT6, the STM32F407RGT6 comes in an LQFP176 package with 176 pins, which fulfills your criteria.

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recommend a replacement for U4.

@copilot recommend a replacement for U4.

Given that U4 is an Adafruit ILI9341, which is an interface for color TFT displays, some suitable alternatives to consider are:

AILI9341 SPI Interface LCD Display Module from AliExpress.
TFT LCD 2.4" 240x320 TFT LCD Shield with ILI9341 Controller from Seeed Studio.

Remember, when choosing an alternative part, you need to consider that the replacement should match the pin configuration and communication protocol of the original ILI9341. It's also important to validate that the replacement's mechanical dimensions align with the layout of your board. You may need to adjust your design based on the replacement's form factor, pin arrangement, and software compatibility.

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recommend a replacement for U4.

@copilot recommend a replacement for U4.

Sure, for the ILI9341 TFT LCD Single Chip Driver, you can consider the following alternatives:

Leadtek LTK50D03 - This is another TFT LCD driver that comes with similar specifications. It has 240x320 resolution with 262K color. The interface supported include SPI, 8/16-bit parallel, and RGB.
RAiO RA8876 - Is a powerful and fully featured TFT controller that supports a range of interface options including 8/16-bit parallel and serial (SPI/I2C) and also provides a resolution up to 640x480.
Sitronix ST7789V - This TFT LCD driver provides a 240x320 resolution and supports 262K color. It also supports 3-line/4-line serial peripheral interfaces (SPI).

Please remember to cross-reference each parameter from the datasheet, to ensure pin compatibility, voltage, and interface compatibility with your particular board and use case. Also, please check the availability of driver support for your target processor platform.

Someone is typing...

recommend a replacement for U3.

@copilot recommend a replacement for U3.

Your current device for U3 is an STM32F405RGT6 by STMicroelectronics. The STM32F407xx series, such as STM32F407RGT6, can serve as a replacement. Both STM32F405RGT6 and STM32F407RGT6 share the same pin configurations, however, the STM32F407RGT6 includes a few extra features like the Ethernet MAC interface and camera interface, which are exclusive to the STM32F407xx series[1]. It is important to note that these two series of microcontrollers are pin-to-pin, software, and feature compatibles, allowing you to easily replace one with the other. Keep in mind that these are not drop-in replacements, as the two families do not have the same power scheme[2]. You must verify that the additional features of STM32F407RGT6 are suitable for your application and that the power scheme differences do not pose an issue.

[1] Page 13

[2] Page 16

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recommend a replacement for U4.

@copilot recommend a replacement for U4.