STM32 MCUs Embedded software

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AT45DB SPI flash + fatfs

Im using CMSIS drivers for AT45DB and SPI. And Keil filesystem.And stuff dont work. After I call fformat function Im getting stuck at EraseChip function in AT45DB641E.c @  while (ptrSPI->GetDataCount() != 4);The thing is that byte are sent, but I nev...

Interrupt priority with CMSIS-RTOS2

Hi,I am working on a project with Nucleo board 401 and the serial device SIM808, the communication is managed with CMSIS-RTOS2 APIs.In my code there are two threads, the first (mainTask) that sends an AT command at the SIM808 and the second (StartDef...