• CMSIS osThreadFlagsSet() API
    Hi, I am using CMSIS Free RTOS. I see osThreadFlagsSet() function is using xTaskNotifyFromISR() and xTaskNotifyAndQueryFromISR() APIs. I understand their usage. As per my understanding (void)xTaskNotifyAndQueryFromISR...
  • Are CMSIS drivers for Flash portable on all Cortex M0(vendor independent)?
    I am writing open source easy to use top level Flash drivers which are portable to use on all Cortex M0 devices (vendor independent). So I was thinking of using CMSIS flash drivers as my low level block...
  • CMSIS DSP Library FIR filter in realtime application
    Hello, I am new to DSP things and I just built my first test project. This is a low pass filter with an order of 31, so 32 coefficients. Also I have an input buffer of 32 values that I designed as a...
  • ARM Cortex-M4 (Nuvoton NUC472) not booting with External RAM on EBI Interface
    Hi, We are working on ARM Cortex-M4 (Nuvoton NUC472) based SoC as per our requirement.We are facing one critical issue like board is not booting when we enabled and used extrenal RAM on EBI . We have...
  • What's the clock frequency for CHI interface protocol ?
    Hi, I was reading the CHI architecture specification but there is no mention of electrical characteristics such as the clock frequency for the CHI interface. What is the max and min frequency for...