Peripheral IO Count Inquiry


Could you clarify what you mean by “peripheral IOs”?
  • Are you asking for the number of GPIO pins available on the STM32F405RGT6?
  • Or the count of serial interfaces (SPI, I²C, UART, etc.) provided on this board?
Could you clarify what you mean by “peripheral IOs”?
  • Are you asking for the number of GPIO pins available on the STM32F405RGT6?
  • Or the count of serial interfaces (SPI, I²C, UART, etc.) provided on this board?
Sure—just to be clear, which of these are you looking for?
  • The total number of general-purpose I/O (GPIO) pins broken out on the STM32F405RGT6?
  • The number of enabled serial/peripheral interfaces (e.g., SPI, I²C, UART) on the board?
  • Or something else (e.g., ADC channels, timers, PWM outputs)?
Let me know which metric you need, and I’ll fetch the details.
How I can use this schematic and PCB layout ?
Here’s the most relevant entry I found in the Flux documentation:
How do I start the PCB layout after completing the schematic?
Click the PCB tab. Your schematic components become footprints on the board. Define the board outline and arrange components based on the ratsnest. For more information checkout this Getting started tutorial
Define board outline
Import Gerber outline
Toggle ratsnest view
Edit footprint pads

[Example] STM32F4x Preliminary Design