STM32 MCUs Embedded software

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STM32F446 MP3 Player MCU Usage

Hi everyone, I'm developing an HMI with STM32F446. it has 800x480 display as well as a stack for communicating the devices with the CAN. Also, this stack must be updated in 4 milliseconds. Now also needing mp3 player and radio. For radio, a IC can be...

Resolved! How do I use HAL_SPI_Receive_DMA in conjunction with a receive buffer on the stack and caching enabled?

I am working with the STM32F760I-EVAL board and caching (SCB_EnableICache() and SCB_EnableDCache() are called) and MPU (MPU_Config() is called) are enabled. I am using DMA with SPI and if I transmit data, HAL_SPI_Transmit_DMA, I need to call SCB_Clea...

arnold_w by Senior II
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STM32L475 Jumping to DFU

I am trying to figure out the details of how to jump to the internal bootloader on STM32L475. The following code works just fine on the STM32F405, but similar (updating the address obviously, which is actually the same) will not work on the L475.ldr ...

DMA buffer position

In the M0 I used this code to get the current pointer position U1RxBufferPtrIN = U1RxBufSize - huart2.hdmarx->Instance->CNDTR;but on the H7 this register is not available.How can I find the current Rx pointer position from the Uart DMA controller...

T J by Lead
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Why LISR signals Half Complete and Total Complete ISR at the same time, while using HAL Double buffer mode for Audio

Hello to all.I'm trying to setup the STM32F746-Discovery board for audio transmission.For the audio transmission it is important to use double buffer mode.I'm using the HAL and the stm32746g_discovery_audio.c and wm8994.c filesThe LISR register signa...