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Resolved! Bug in STM32F103: enabling FSMC clock pulls up PB7

I have an STM32F103 board call 野火STM32F103ZE_霸道开发板,i found  enable  FSMC clock will pull up PB7  GPIO to 3.26v ,   i try decrease my code ceaselessly to verify this bug, finaly it can reproduce bug easily like this #include "stm32f10x.h" int main (v...

owlm00n by Associate
  • 328 Views
  • 15 replies
  • 10 kudos

LVGL with LCD display using LTDC

Hi all i used LTDC hardware inside the STM32f429 discovery board to drive an external 24 bit RGB display in 16 bit mode . full GUI is designed in LVGL library , I was able to build it and flash it. I got the output on the display but with few issues ...

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b1aze by Associate II
  • 39 Views
  • 0 replies
  • 0 kudos

800 x 800 Display with STM32U5G9VJT6Q - possible?

Hi,we are trying to get a 800x800 display to work with the STM32U5G9VJT6Q, using either RGB888 or RGB565 in Video Mode (Burst).According to what we read it is definitely possible. Did we miss something?Could someone please confirm that is definitely ...

Ricko by Senior III
  • 1407 Views
  • 16 replies
  • 9 kudos

Resolved! Execution time changes over time, why?

STM32F411RE - NUCLEOI'm working through a course on power optimization on STM32s & I'm genuinely confused about some results I'm getting off the board. I've set up TIM5 to count execution time in us like so, void Timer_Init_For_Timing(void) { RCC->A...

Using external RAM with STM32U5G9-HSPI

Hi Everyone,I am working on a project with TouchGFX. I'm working with STM32U5G9ZJT6 and I have an external RAM APS12808L-OBM-BA connected via HSPI (Fclk-hspi 100 MHz) in mapped mode. The project is working, but the image animation are not working wel...

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OCTA SPI PINs For STM32U575VIT6Q Controllers

Hi @Issamos Hope You doing well . we are started new design using STM32U575VIT6Q this controller, we have some doubts regarding the SPI line, we searched in the STM32cubemx in that we cannot able to find the octa spi pins, Can you pls share me the St...

HA2375- by Associate
  • 54 Views
  • 2 replies
  • 1 kudos

Resolved! Strange variable behavior in struct, TCP / lwIP

Heyho,I have a super-stable TCP-audio-streaming server on a H733 here, using custom ETH driver and lwIP, no OS.But I recently found that in a struct which is used for handling / storing the TCP connection, the variable to store the port number "u16Po...

LCE by Principal II
  • 61 Views
  • 2 replies
  • 1 kudos

Resolved! ISR memory update & Timer trigger

Hello All, I am facing a strange situationI have an ISR function1 that is triggered on Falling / Rising Edge of a GPIO pin This function1 according to the state of variable will either start TIMER2 and stop TIMER3 and the way around.TIMER2 & 3 have a...

vbesson by Senior
  • 89 Views
  • 2 replies
  • 2 kudos