• Which timer is the best choice for RTX RTOS?
    I have found a variety of timers and wonder which one I should use for my RTOS application. I should run a non-timing-critical task periodically. I found the GPIO timers on the Cortex M3 as well as the...
  • [BUG] CMSIS I2C Driver for STM32F4xx (v2.9)
    Hello, Memory overflow occurs when receiving 2 bytes using the driver. Works fine for 1 byte. Here is a code to simulate the problem: ARM_DRIVER_I2C *I2Cdrv = &Driver_I2C1; uint8_t buf[2];...
  • Problem with debugging mode
    Hi I was using Keil 5 to debug my code on #1 board, somehow the code was kind of stuck, it has no response to reset, and cannot run anywhere, the same code works with no issue on the other self-build...
  • Incorrect value displayed on system viewer window
    Hi, I'm using a STM32F4 Discovery board which has a STM32F407VG with a LIS3DSH accelerometer which is connected by SPI. I'm trying to read a register from the accelerometer and I tried writing the address...
  • Execute Failed while SRC using <sstream> with armclang
    Lately I'd obsessed over compiling STM32 project with ARMCLANG. Here is Details: Case 1. Used "#include <sstream>" in cpp file, complied successfully but execute failed, meanwhile I didn't use any...