STM32 freeRTOS tinyUSB SCPI

Steps to add tinyUBS to STM32CubeMx generated project

• enable in STM32CubeMX in Pinout & Configuration under Connectivity the periphery for USB_OTG_FS as Device only.

  • Make sure that usb global interrupt under NVIC Settings is enabled

• add tinyUSB as submodule to your project

• add the folder tinyUSB/src to your build sources

  • exclude tinyUSB/src/portable/st from your build, instead use tinyUSB/src/portable/synopsys

• add the following lines to your main.h

  #include "tusb_config.h"
  #include "tusb.h" 

• add CFG_TUSB_MCU=OPT_MCU_STM32F7 as preprocessor macros to your project

• add tinyUSB interrupt handler with the following code to OTG_FS_IRQHandler in stm32f7xx_it.c, before HAL_PCD_IRQHandler is called

  tud_int_handler(BOARD_TUD_RHPORT);
  return;

• add the following code after hal initalisation was called in main function

  tud_init(BOARD_TUD_RHPORT);

• call tud_task() in each loop iteration in main function.

• add your own tusb_config.h and usb_description.c to your project

Changes for freeRTOS

• enable freeRTOS in STM32CubeMX
• add task for tinyUSB
• define CFG_TUSB_OS as OPT_OS_FREERTOS in tusb_config.h