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UART not receiving NULL hex bytes on STM32F103C8T6.

I'm using STM32F103C8T6 processor with an 8MHz internal clock, 9600 baud rate, 8bit + 1stop bit and no parity. For receiving uart data, I'm using a global interrupt. While I'm receiving data with usart1 or usart2, I can not receive null bytes. Now I ...

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BJako.1 by Associate II
  • 1411 Views
  • 7 replies
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STM32H7 Using SPI with DMA circular mode

Hello,i currently use SPI interface of my STM32H7B3I board with DMA (mode circular) to build up a connection to Raspberry Zero W (using Python spidev-lib).At the beginning, I start HAL_SPI_TransmitReceive_DMA() where the data exchange is initialized....

CKörn.2 by Associate II
  • 1931 Views
  • 6 replies
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I want to know the parallel communication

Hello All,If I pass 0x38 hex value into my function, that should be came out from my one of the port as parallel data, how to do this ? please give me a simple example with code and explanation.My youtube channelStm32user

How to unlock STM32F103C8T6 ?

Hello, I have several modules with STM32F103C8T6 (called Blue Pills). But I cannot get them to runthe programs. I can freely write or read flash memory with stm32cubeprogrammer, but there is always warning (even when I want to start the program), tha...

bully by Senior
  • 1105 Views
  • 2 replies
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Resolved! Write and read using Flash memory on STM32F7xx (24 sectors)

I've got the following structure to write to memory:```#define FLASH_CONFIG_START_ADDR ((uint32_t) 0x080E0000)#define FLASH_CONFIG_END_ADDR ((uint32_t) 0x080E0040)union NVRAM { Config_t config; uint8_t data[512];} DevNVRAM;```I've used this code for ...

ZYagu.1 by Associate II
  • 4399 Views
  • 14 replies
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CLOSED - USART receiver not working on F446RE MCU

Hello all,I'm trying to implement a really simple exercise:Send a char via USART2 (PA2);Receive the char via USART1 (PA10);After the char is received, within an interrupt I increase a variable called "Debug".The only HW connection done is that betwee...

FGiai.1 by Associate II
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  • 16 replies
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ADC works sometimes STM32f303RE

Hi.I am having problems with the ADC, for some reason, it only works when I put a breakpoint in the function I use to enable the ADC to debug, but, if I run it without any breakpoint, it does not work.line of code I use to extract a value from the AD...