I am attempting to communicate between ESP32 and STM32F401 using SPI Mode 0.I am achieving approximately 6MHz reliably and note data corruptions at 8MHz or so.Both MPUs are using DMA. I can improve performance by dropping APB1 prescaler from 2 to 1 c...

I need a STM32F411 DISCO USB Host example using FreeRTOS.My project is based on STM32F401. I don't have target hardware yet & have survived with a NUCLEO 401 and linking wire. That won't be good enough for USB.Nearest is a STM32F411 DISCO but my rush...

Hi,I need to write a bootloader which will load the new program from a USB memory stick.Unfortunately I cannot use the ROM based DFU bootloader.The bootloader would need to be held in FLASH and protected against update. Easy enough.I believe that the...

I need to transfer data between two micro controllers - both short commands and large blocks of data.The STM will receive and so will be the SPI slave. I intend to use DMA.The SPI master will transmit either short or long packets and so need a way to...

A simple question.I have loaded & run the NUCLEO-F401RE \Projects\STM32F401RE-Nucleo\Examples\UART\UART_Printf example.The project sends printf() to COM.I have cut and paste the __io_putchar(int ch) code into my own project.__io_putchar() does not g...