STM32 MCUs Products

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Forum Posts

ADC - TIMER - Sample rate confusion?

Hi, I need a little explanation about what is wrong behind my reasoning..I am using STM32F411. reading, two inputs of ADC in scan mode over circular DMA triggered via TIM2 update event.TIM2 is triggering ADC at 100KHz, so I have 50Khz sample rate per...

Bogdan_ST by Associate II
  • 212 Views
  • 12 replies
  • 3 kudos

Resolved! Flash memory size of STM32H743XGH6

The STM32H743XGH6 is specified to have 1 MB of Flash memory.However, it seems that the following 2 MB address ranges are writable:BANK1: 0x08000000 to 0x080FFFFFBANK2: 0x08100000 to 0x081FFFFFIf the device really has only 1 MB of Flash, I would expec...

Resolved! STM32F303K8 ADC-DMA issue, DMA not firing

I have strange DMA problem with a F303 application, in particular a STM32F303K8 (a STM32F303x6/8 variant).The concept is relatively straightforward.A configured ADC sequence is triggered by timer, the ADC in turn triggers DMA transfers of the convers...

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Ozone by Principal II
  • 87 Views
  • 3 replies
  • 1 kudos

STM32F446RET6 DAC output

Hi, For STM32F446RET6, I want to use the DAC function of it. But I have some question. 1. If I don't use the output buffer, what is the output range? From the datasheet I think it should be 0.5mV to 3.3V±1LSB?2. If I use the output buffer, what is th...

Junzhe by Associate II
  • 94 Views
  • 3 replies
  • 0 kudos

14bit DCMI to 32MB SDRAM at 48MHz, on STM32H743IIT6

Hello dear ST forum.I need again you precious help.I am working on a data acquisition device, and need to get 14bit data from a parallel ADC connected on DCMI pins,at 48MHz, and move it to a 32MB SDRAM (W9825G6KH-6I) till almost full. The MCU is STM3...

nedelcu by Associate II
  • 340 Views
  • 8 replies
  • 0 kudos

Using QSPI PSRAM with a STM32-H753 is that possible?

Hello,I am in the process of designing a product which is based on the STM32-H753 and requires P/SRAM.However, I'm concerned the H753 might not support on PSRAM with QSPI, I need the PSRAM for write/read.I haven't found any application notes or examp...

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dvir1092 by Associate
  • 131 Views
  • 5 replies
  • 0 kudos

STM32H7 UART DMA idle interrupt

hello when i use UART Idle interupt with DMA on STM32H743XIH6 chip,i found ,the interupt function will run imediatly when  HAL_UARTEx_ReceiveToIdle_DMA(&huart2, (uint8_t *)Uart2RxBuffer, 50)run,and this is my core code MPU_Config(); // SCB_EnableICa...

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QingFeng by Associate II
  • 146 Views
  • 4 replies
  • 0 kudos

Resolved! Issues writing 0s into flash into STM32F103

Hello, I am trying to make a write into flash driver but I am having some issues.I know that the only way to write a 1 to the memory is by clearing the whole page, but I am having issues writing 0s.By reading the manual I encountered: Bit 2 PGERR: Pr...