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stm32f302 ADC capture influences input signal

I'm testing stm32f302 ADC capture with DMA transfer, but get some strange issues.I set the ADC1 to capture single channel AIN2(PA1) in continuous and DMA mode at 72MHz and 1.5 sample cycles. Set the DAC1 output a fixed voltage of 2048 with VDDA = 3.3...

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YDong.11 by Associate II
  • 1081 Views
  • 7 replies
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STM32L4+ power scheme design while working at 1.8v

Hello, I will use STM32L4R9AI in a battery powered design with PSRAM that powered at 1.8v and flash memory that can work at wider voltage range (in addition to DSI display, RTC, ADC, DAC, USB, I2C) so my power scheme is as following:MCU:VDD : 1.8vVDD...

Hard Fault when calling the HAL_TIM_Encoder_Start_DMA function on the STM32F103C8T6 microcontroller. Can I fix it?

 HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(...

AndrewCh by Associate
  • 934 Views
  • 4 replies
  • 1 kudos

Cube External Memory question

Hi everyone,I have recently starting becoming familiar with the M-Cortex structure and instruction set ( I was raised on Atmel MCUs in school and this is my first time working with M-Cortex and .thumb instructions) I am trying to learn as much as I c...

belair55 by Associate III
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  • 1 replies
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I2S DMA Complete transfer IRQ on circular mode

Hi, I'm using an audiocodec with a STM32F4011 through I2S interface. I configure I2S to transmit/receive in DMA mode and circular buffer. I need to get an ISR on HalfComplete and Complete transfer.HAL_I2SEx_TxRxHalfCpltCallback is fired on half compl...

leonardo by Associate III
  • 2175 Views
  • 9 replies
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STM32F205 USART2 Long zero level in tx transmitting

I use USART2 for connect whith gsm module.When trafic is big enough some byte in transmitting from cpu to modem can be corrupted.It may be happen one time in few minutes.I see corrupted byte by signal analisator. And the same corruption i see on the ...

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extra byte in front of USART buffer received with DMA

I have inherited code that received 1400 bytes over a 2mbps serial link. I've increased that to 1892 bytes and on occasion (not always, but frequently enough to be annoying) I receive my buffer "shifted" by one byte and a garbage byte for byte 0 in t...

RPhil by Associate
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  • 3 replies
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