• stm32f405 I2C problem
    hello i am using the STM32F405RGT6 in my design, and also I2C driver to comunicate with an IMU chip. first, i was using keil STM32F4xx_DFP.2.13.0 pack and the I2C interface was working perfectly....
  • STM32F405 SD Card write speed
    I have a 60Mb file on my class 4 SD card. In a 'while' loop I read blocks of size 8kb from that file and write it in another file on the same flash. It takes approximately 3 minutes for a whole loop...
  • configuring spi1 nss pin in STM32F405 as external interrupt pin
    Hello everyone.. I am working on STM32F405xx controller. I am configuring SPI1 NSS pin(PA4) as external interrupt pin for falling edge but its not working for me. in reference manual it is given that...
  • How to setup a correct linker file
    Hi. I'm working on a larger project, which is split into a subset of libraries. As the code grew the more warnings appeared after linking (Section located outside class area), which resulted in...
  • vpbdiv setup
    The example's startup file in The Insider Guide from Hitek has the option to set XCLKDIV:XCLK Pin which changes bit# 2-3 of VPBDIV register. LPC2131-UM pg.50 indicates that bit# 2-7 are reserved. Is...