In particular, I can see random white dots on LCD when external NOR flash is written, like writing in the flash somehow influence the frame buffer. Testing RAM for error passes OK, same is when I test NOR flash write and verify. I searched for a prob...

rxBuf is uint8_t array. // this creats HardFault sometimes: id = *(uint32_t *)&rxBuf[i]; //---------------------------------------------------- // but this works OK forever: id = rxBuf[i + 3]; id <<= 8; id += rxBuf[i + ...

I try to count pulses from PA1 as TIM21_ETR, seems like all setting is OK, but no counting what soever. What am I missing?Thanks/* TIM21 init function */ void MX_TIM21_Init(void) { TIM_ClockConfigTypeDef sClockSourceConfig; TIM_MasterConfigTypeDe...

Posted on October 14, 2015 at 14:40I wrote a bootloader (STM32F4), that takes a file from USB memory, and updates the system firmware.I would like to have read protection. However when protection option is on(level 1) when writing the new firmware t...

Posted on May 21, 2015 at 08:43Does the emWin lib support the STM32F4 CLUT?I would like to store and display images with 8 bit/pixel but with 256 different  16 bit (RGB565)  colors...If anyone did it, a code snippet will be highly appreciated.Thanks...