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BLUENRG_LP STEVAL-IDV011V1 issue

I can’t program my STEVAL using SWD neither UART right now. My last FW only configures my accelerometer an them goes to SHUTDOWN. When the MCU is on SHUTDOWN mode I could never program STEVAL using SWD (in Keil or using BlueNRG-X-Flasher Utility), bu...

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ARamí.1 by • Associate II
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  • 3 replies
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Resolved! STM32L431RCI: Why is the voltage on pin VDDA jumping from 1.85V (external voltage regulator) to 1.94V after ADC_CR1_ADEN bit is set?

Source:int main(void){  HAL_Init();  RCC_OscInitTypeDef RCC_OscInitStruct = {0};  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};  /** Initializes the CPU, AHB and APB busses clocks   */  RCC_OscInitStruct.O...

MosRa42 by • Associate II
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  • 8 replies
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Resolved! How can I set the address for DMA

I try to use DMA to transport data from GPIO input regester (GPIOx_IDR) to some other buffer memory. DMA reguest is created by timer with input capture mode so I turn on DMA by HAL_TIM_IC_Start_DMA(). This function doesn't have a arugument for source...

SShir.2 by • Associate II
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STM32L01x SPI Transmitt 32bit

Hello Guys,I'm new here and more from the hardware side.My problem is, I have a SPI ADC (ADS8665) and for it to work, it needs 32bit commands.So I tried this:uint8_t buff[4]; buff[0] = 0xC8; buff[1] = 0x00; buff[2] = 0x00; buff[3] = 0xC8; HAL_SPI_Tra...

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FPaul.1 by • Associate II
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I am using the STM MCU timer for PWM. This PWM signals goes as input to external MOSFET configured as push pull. So I want the timer pin to be in high impedance state during some instance of time and rest of the time give the PWM output signal.

I tried the following functions to make the timer pin high impedance, but nothing works:-          __HAL_TIM_DISABLE(&htim3);          TIM_CCxChannelCmd(&htim3, TIM_CHANNEL_3, TIM_CCx_DISABLE);          __HAL_TIM_MOE_DISABLE(&htim3);I also tried to c...

anu2083 by • Associate
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Resolved! I am trying to set up a I2C slave using a STM32F103C8Tx

I used STM32CubeIDE to create the project. The configuration that I used for the i2c is attached. I generated the code and added the following code in the "USER CODE BEGIN 2" section right after the call to MX_I2C_Init(). I made no other changes. uin...

JGaby.1 by • Associate III
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Is not posible to use: "<",">" in stm32f0, keil v4?

I´m using this:void definir_polaridades (void){ if (contar_valor_1_hsync<contar_valor_2_hsync){//DEFINIR POLARIDAD DE HSYNCpolaridad_hsync=5;} else {polaridad_hsync=10;} if (contar_valor_1_vsync<contar_valor_2_vsync){//DEFINIR POLARIDAD DE VSYNCpolar...

With a STM32L4, I would like to use one channel of DMA1 to read the ADC and another channel to transfer the buffer from memory to UART. Basically, I would like to have some sort of oscilloscope (for positive values only and below 1 MHz signal).

Which is the best approach to manage the use of DMA and "control" the flow of data? Implementing some interrupt when the buffer is filled? Is it possible to put one channel of the DMA on "hold" while the other has full priority? Or two DMA are requir...

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