DMA Request Synchronization?
What does DMA Request synchronization do? In the case of SPI_Rx does it trigger SPI reception when TIM12 updates (overflow) if i set synchronization signal to be TIM12 TRGO
STM32 MCUs Products
Ask questions, find answers, and share insights on STM32 products and their technical features.
Forum Posts
LTDC + DSI Video Mode - No Display
I am attempting to display to an ILI9881C based panel. After successfully initialising and testing the panel using DSI only, I am working on DSI Video mode to pull data from a frame buffer via LTDC.I have the DSI configured as follows static void MX...
STM32G4: SPI, NSSP and CHPA
I like to use SPI in continous DMA mode together with a SPI-slave that uses the falling-edge of the spi clock (AS5048A: https://ams-osram.com/products/sensor-solutions/position-sensors/ams-as5048a-high-resolution-position-sensor). So, I have to use C...
Alternative option for GPIO External Interrupt for fast signals
Hello, I'm using Nucleo H723ZG.In my project, i need to detect a rising edge to trigger a callback. What i have done is that i setup a GPIO as external interrupt, and i verified the code by manually connecting and releasing from 3v3 pin. The actual s...
32-bit vs 16-bit SDRAM performance for 1024x768 resolution display with STM32H750XBH6
Split from this thread. Thank you for your previous responses and guidance. We are now planning to move to the STM32H750XBH6 (BGA package) with a 32-bit SDRAM (IS42S32400J-6TLSDRAM ) interface in our custom board design.Our project uses a 12.1-inch d...
Resolved! LTDC with Raw RGB LCD
Hello stm community. I am working on a project involving STM32H7 series MCU with Raw LCD panel of 24 bits. Since the display has no IC i am using the internal LTDC component to drive the lcd. So i have some questions can i drive the lcd backlight wit...
Resolved! STM32N6 HPDMA not copying data
Hello,another day, another N6 "issue" :)I want to do RAM to RAM copy by HPDMA, but the data never get copied from Src to Dest, Dest always stays unmodified. I have checked the 'DMA_RAMToRAM' example for N6 and went from there, but with no success.DMA...
Low Power I2S MCU
I'm looking for an ST microcontroller that can do I2S receiving while remaining low power, presumably by keeping the core asleep and using DMA to copy I2S chunks to a buffer. I think I saw a video demo of this at some point somewhere on the website, ...
STM32H753 SPI Slave Tx DMA Problem (Circular Mode)
When using SPI6 in Slave mode with TX DMA in Circular mode, the SPI FIFO is not updated with data from the DMA buffer for the first SPI FIFO size (8 bytes). Both the SPI Master and SPI Slave were debugged: The SPI Master transmits one frame. On ...
Resolved! STM32F410 uart1 lost break/framing error interrupt
Hi all,Im using STM32F410 uart 1 to transmit and receive.I use DMA to transmit bytes. I then use TC interrupt to send a break,then push an event to an event queue to signal that the transmitter is free.void interface_uart_tx_eot_isr(if_uart_t* p) { ...
