STM32 MCUs Products

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STM32H725 SRAM1 vs SRAM2 in D2 domain

Hi!I use SRAM 1 (0x30000000 - 0x30003FFF) in D2 domain for USART2, USART3 DMA buffers. All work clean. If I use SRAM2 (0x30004000 - 0x30007FFF) just after running debug it's all right. But after "Reset chip and restart debug session" the first access...

Aleks by Associate III
  • 616 Views
  • 2 replies
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SPI driver for MCP410 Controllable potentiometer

Hello. I am writing an SPI driver for STM32F407 Microcontroller to control the resistance of the MCP410 chip.The datasheet for the chip can be found here:https://ww1.microchip.com/downloads/en/DeviceDoc/11195c.pdf The I use a cheap logic analyzer tog...

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LPetr.1 by Senior
  • 749 Views
  • 1 replies
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Strange Characters Received with UART

Hello,I use the STM32F767 microprocessor on my PCB design. After sending back the converted data to a PC with UART, I got strange characters (in Picture1). Normally, I am supposed to get the numbers like in Picture2. The characters look like Chinese ...

AE104 by Senior
  • 3382 Views
  • 8 replies
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Force a timer to interrupt as soon as possible

Hello,I have a timer TIM2 interrupting every 2ms (that's working).When I receive SPI data from SPI3_IRQHandler, I want to launch the interrupt of this timer TIM2_IRQHandler as soon as possible (eg in the next 10us).Then, the timer will continue to in...

jean by Senior
  • 982 Views
  • 9 replies
  • 0 kudos