STM32F411CEU6 Integration

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Below is a suggestion to update your schematic by replacing U2 with the STM32F411CEU6 and remapping its key connections exactly as recommended by its datasheet:
Schematic Update Details:
  1. Replace MCU Component:
    • Remove the current U2 at U2.
    • Add the new STM32F411CEU6 with the same designator (U2).
  2. SWD Interface Remapping:
    • Map SWDIO to the new MCU’s PA13.
    • Map SWCLK to the new MCU’s PA14.
    • Ensure that any external connector or net previously tied to SWD (for example via J2 if used for SWD purposes) is now connected to PA13 and PA14 as required.
  3. Power and Decoupling:
    • Connect all VDD/VDDA pins of the STM32F411CEU6 to the 3.3V net.
    • Place proper decoupling capacitors (typically 0.1µF per VDD pin) at the suggested locations per the new datasheet.
    • If the datasheet calls for a bulk capacitor for the power rail (e.g., a higher value capacitor for filtering), add it accordingly.
  4. Ground Connections:
    • Remap all ground pins (VSS, VSSA) to the designated Ground component.
    • Verify that any ground nets previously connected to U2 are updated to reflect the new MCU’s ground connection requirements.
This update ensures that the STM32F411CEU6 is correctly integrated into your design following its datasheet for SWD, power, and ground connections. You can use the “Apply changes” button to update your schematic with the above modifications.
Let me know if you need any further details or adjustments.
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i will not be using this pin in my pcb, how do i block it in this schematic
tunmice

tunmice

@copilot i will not be using this pin in my pcb, how do i block it in this schematic
1y

copilot

In order to block or indicate that a specific pin will not be used in your schematic design, you can take the following steps:
  1. No Connect (NC) Annotation:
    • You can explicitly mark the pin as "NC" which stands for No Connect. This is a common practice to show that the pin is intentionally not connected to any net.
  2. Place an NC Symbol:
    • Use the designated NC symbol or annotation available in Flux and place it on or near the pin to indicate that it is not used.
  3. Hide the Pin:
    • Some design tools allow you to hide the pin from the schematic view to declutter the diagram. However, this doesn't technically prevent its inclusion in the netlist.
  4. Edit the Schematic Symbol:
    • Edit the symbol in your schematic to mark the unused pin as NC, if that's possible and if you want to make it visually clean.
  5. Document It:
    • Add a comment or note next to the component explaining that the pin is not used.
To proceed, let me know which specific pin you'd like to block or mark as not used, and I can provide more targeted guidance.
1y
SW2
R2
Resistance
1.5k Ω
U4
3.3V
C15
Capacitance
22u F
3.3V
C14
Capacitance
22u F
J1
R1
Resistance
1.5k Ω
3.3V
VBUS
J2
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STM32 Breakout Board

STM32 Breakout Board
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Last updated by tunmice
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tunmice

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