• CMSIS v5 USARTn_IRQHandler multiply defined
    Hi, I have been learning how to use CMSIS v5 Beta to program an LPC4357, and so far so good. I got stuck in creating an interrupt for USART3 (Rx). I am using numerous other interrupts with no problem...
  • CMSIS IIR filter calculation speed
    Hello! I am trying to implement IIR filter algorithms on an STM32F767. I'm using the CMSIS library for the filter algorithms and they are working as expected. However, the execution speed is very...
  • CMSIS, SPI driver is missing!
    Hello I'm using Keil 5.10 professional, CMSIS 4.11. I want to use middlewares to connect to a web server, using LPC1788(Cortex-M3 from NXP) . But when I add ethernet driver to project, I get an error...
  • Debug in CMSIS USB driver
    Hello Everyone, Do anyone have used CMSIS USB driver to configure the controller or board as host. I'm using LPC1837 Controller which is ARM cortex M3 , this controller has has two USB port. i'm using...
  • CMSIS DSP - FFT / RFFT
    Recently I've been trying to implement FFT provided in CMSIS-DSP libraries. And something strange happens - some of output array elements have values below 0. I am using arm_rfft_fast_f32 . According...