Reverse Engineering PCB

flux

0:24

Running design review.

Here’s what the reviews are telling you right now:
1. Design Rule Checks (DRC)
Only one actual issue:
  • Project Documentation: Error
    • “Project has no documentation. Add a project document to capture design decisions, requirements, and specifications.”
    • This is just a reminder to add a project doc; it doesn’t block design work.
2. Electrical Rule Checks (ERC)
One category with errors:
  • Missing Power: Error
    • Power input not connected: U1:VIN (net: —)
    • Power input not connected: U1:VBAT (net: —)
    • Your U1 Teensy 4.1 module has its VIN and VBAT pins floating in the schematic. ERC is warning that these power input pins are not tied to any power source.
For now, these ERC/DRC errors do not affect our image-based reverse engineering work; they just mean this project’s own Teensy template schematic is incomplete. When you’re ready to actually wire this reverse‑engineered board into the project, we’ll:
  • Decide what your board’s input power is (USB, barrel jack, etc.).
  • Connect U1 VIN/VBAT to the appropriate rails.
  • Add a short project document describing what this board is and how it interfaces.
56 days
plamenivanovgenchev1967

plamenivanovgenchev1967

как да коригирам размерите на платката
11 days

flux

0:18

Considering board dimension corrections.

Да. Във Flux размерите на платката се коригират от Layout Shape / board setup чрез задаване на форма и точни размери. За правоъгълна платка се задават width и height, а по желание и cornerRadius; може също да се смени stackup-ът едновременно
Най-пряко:
  • Отвори PCB / Layout изгледа.
  • Избери Layout.
  • Промени формата на платката: rectangle, circle или custom.
  • Въведи точните Width и Height в mm.
  • Ако е правоъгълна, можеш да зададеш и Corner Radius
Примерна конфигурация според документацията:
  • rectangle
  • 100 mm × 80 mm
  • corner radius 2 mm
  • по желание Standard 4 Layer stackup
Ако искаш, мога да ти кажа и точно как да го направиш в интерфейса стъпка по стъпка, или да ти дам готови размери, ако ми кажеш желаните ширина и височина.
Покажи стъпките
Задай конкретен размер
Промени формата
Настройки на платката
11 days
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recommend a replacement for U1.
djritmo

djritmo

@copilot recommend a replacement for U1.
2y

copilot

Based on the information available and the MPN (Manufacturer Part Number) being "DEV-16771", it could be inferred that U1 is a Teensy 4.1 development board from PJRC, which integrates an ARM® Cortex®-M7 Microcontroller unit.
If you're in the market for a replacement, you'd likely want another microcontroller-based development board that boasts similar capabilities. Some recommendations include:
  1. Teensy 4.0 (PJRC) - MPN: DEV-15583: A bit of a downgrade from the Teensy 4.1 when it comes to features, this variant uses the same ARM Cortex M7 processor, but lacks the additional IO and SD Card socket.
  2. Arduino Due - MPN: DEV-11589: Sporting an ARM Cortex M3 rather than M7, the Due is comparably well-equipped in terms of I/O pins and functionality. The main sacrifice is the reduced clock speed (84 MHz), which is much less than the 600 MHz boasted by the Teensy 4.1.
  3. STM32F746G-DISCO - MPN: 32F746GDISCOVERY STMicroelectronics: Equipped with a comparable ARM Cortex M7 processor, this board also features a 4.3" 480x272 touchscreen and other high-end features. It may be a little excessive if your project doesn't need all these additional features.
When settling on a replacement, take into account elements such as your project requirements, its price, current availability, and any necessary changes to your schematic to accommodate the new board. Be sure to verify the exact technical specifications and appropriateness from the manufacturer's datasheet or website.
2y
Someone is typing...
2
Check that all reset/enable have an external pull-up or pull-down resistors. Rep...
ernestotecsup

ernestotecsup

@copilot Check that all reset/enable have an external pull-up or pull-down resistors. Report action items in an ordered list.
2y

copilot

Based on the information provided for the RT1062 Teensy 4.1 template, the key detail here is ensuring that all reset or enable lines are appropriately biased using external resistors. Given the component provided (U1) and its pins, we need to identify any pins that function as reset or enable lines.
For the Teensy 4.1 (U1) based on the MPN provided and common practices with microcontroller units (MCUs) and similar embedded devices:
  1. The PROGRAM pin (pin 3) often acts as a reset or a programming mode selector for the device. This pin typically requires a pull-up resistor to ensure the device boots normally when not being programmed.
  2. The ON/OFF pin (pin 4), if it functions as an enable pin for the device, it usually requires either a pull-up or pull-down resistor depending on the default state required for the intended operation.
Unfortunately, without the data sheet excerpts specifically detailing the behavior of these pins for the DEV-16771, I'm making assumptions based on common practices with similar devices. Typically, for reset pins, a pull-up resistor in the range of 4.7kΩ to 10kΩ is commonly used, while enable pins might vary more depending on the specific requirements (active high or active low) of the circuit.
Action Items:
  1. Connect a Pull-Up Resistor to the PROGRAM Pin: Assuming it behaves like a typical microcontroller reset pin, connect a 10kΩ resistor from pin 3 (U1:PROGRAM) to a positive power supply rail appropriate for the device's voltage. This ensures that the device does not inadvertently enter programming mode.
    • Connect R1:1 to U1:PROGRAM
    • Connect R1:2 to VCC (where VCC matches the operating voltage of the device)
  2. Determine the Required State for the ON/OFF Pin: If it's an enable pin, confirm whether it requires a high or low state for normal operation. If it's active high:
    • Connect a Pull-Up Resistor to pin 4 (U1:ON/OFF) and to VCC for enabling the device by default.
      • Connect R2:1 to U1:ON/OFF
      • Connect R2:2 to VCC
    Or, if it's active low:
    • Connect a Pull-Down Resistor to pin 4 (U1:ON/OFF) and to GND to keep the device disabled by default.
      • Connect R3:1 to U1:ON/OFF
      • Connect R3:2 to GND
These steps are based on common MCU/MPU design practices. It is highly recommended to review the specific datasheet for the DEV-16771 part used in the Teensy 4.1 to confirm the correct use and values of these resistors. Without direct excerpts from the datasheet regarding these pins, these recommendations are tentative and should be validated with the actual component datasheet.
2y
Someone is typing...
3
are there any issues in this project?
mansoors

mansoors

@copilot are there any issues in this project?
1y

copilot

It looks like your project is currently an empty template with a single component: the Teensy 4.1 Development Board (DEV-16771). Here are a few points to consider and some questions to better understand your requirements:
  1. Power Connections:
    • Make sure to connect the power supply correctly.
    • For example: Connect U1U1:VIN to your main power source, and connect U1U1:GND to ground.
  2. Peripheral Connections:
    • Depending on what peripherals or additional components you want to include, you'll need to connect the respective pins.
  3. Basic Operation:
    • Ensure you have connections for programming and basic operation.
    • For example:
      • Connect U1U1:PROGRAM to your programming interface.
      • Connect U1U1:ON/OFF for controlling power state if necessary.
To help further, I'd need more details on what additional components you plan to use and what your design goals are. Here are some questions that might clarify things:
  1. What power source do you intend to use (e.g., USB, battery)?
  2. Are there any specific peripherals you plan to connect (sensors, actuators, communication modules)?
  3. Do you need any specific interfaces (e.g., SPI, I2C, UART) connected to external devices?
Providing answers to these questions will help in giving more targeted advice.
1y
Someone is typing...
4
create a detailed step by step plan table for U1 to verify its functionality.
fluxtry

fluxtry

@copilot create a detailed step by step plan table for U1 to verify its functionality.
1y

copilot

Sure, I can create a detailed step-by-step testing plan to verify the functionality of DEV-16771. This plan will be structured to test the basic functionalities including power, communication, and peripheral interfaces. Here's the table:

Table

StepDescriptionConnectionsExpected Outcome
1Power Connection- Connect U1:VIN to a 5V power source - Connect U1:GND to groundModule should power up, and an initial status indication (such as an LED) may light up
23.3V Verification- Measure voltage at U1:3.3V pinShould be 3.3V
3Communication (UART1) - Loopback Test- Connect U1:RX1 to U1:TX1Data sent from TX1 should be received on RX1
4Communication (UART2) - Loopback Test- Connect U1:RX2 to U1:TX2Data sent from TX2 should be received on RX2
5I2C Communication Test (Optional)- Connect U1:SCL to an I2C master - Connect U1:SDA to same I2C masterProper I2C communication should occur
6SPI Communication Test- Connect U1:MISO to a SPI slave device MISO - Connect U1:MOSI to SPI slave device MOSI - Connect U1:SCK to SPI clock - Connect U1:CS1 to SPI slave selectSPI communication should work as expected
7Digital I/O Test on GPIO Pins- Connect an LED to one of the GPIO pins, e.g., U1:A0 in series with a current-limiting resistorGPIO should be able to turn the LED on and off
8Analog Input Test- Apply a known voltage to an analog input, e.g., U1:A1The analog value read should match the applied voltage
9USB Connection Test- Connect U1:D and U1:D- to a USB hostProper enumeration and communication with USB host
10Programming- Connect U1:PROGRAM to the programming interfaceDevice should be programmable
11Battery Backup- Connect a 3V coin cell to U1:VBATDevice should retain state with battery power
12LED Control- Control U1:LED via softwareLED should turn on and off based on software control
Would you like me to expand on any specific step or provide additional tests?
1y
Someone is typing...
6
U1
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
    jharwinbarrozo
    15.8k
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M

RT1062 Teensy 4.1 Template

RT1062 Teensy 4.1 Template thumbnail
Template for RT1062 Teensy 4.1 series ARM® Cortex®-M7 MPU Embedded Evaluation Board #template #project-template

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$43.02

Digi-Key

$37.20

Mouser

$37.20

Verical

$68.47

Controls