STM32 MCUs Products

SPI vs DMA SPI.

Hi all,I'm triyng to make the fastest possible driver to comunicate with an ILI9341.My question is about DMA.If I send a burst of bytes to the ILI9341, lets say 1000, is the DMA version faster than normal version?I mean if         HAL_SPI_Transmit(HS...

Procedure for obtaining certificates to use the st-dashboard-iot..... with the IOT Node???

I put this in Mems and Sensors mainly because I'm using the BL475EIOT (IOT Node) which appears to be a sensor platform.  Since this is new to me and the tutorials that I found have the user bouncing all over the place for information, the questions b...

NUCLEO-H745ZI-Q ADC problems.

Hello everyone!First of all, my apologies if I ask the question wrong or don't provide enough information to start with, I'll of course send all that is needed for better solving of this problem.So, I've gotten the mentioned board and I need to do so...

I'm trying to write and read flash

hi guys, im working on stm32l412kb mcu using keil v5 uvision and i ve found it difficult to write and read flash memory. all the explanation online are not relevant for my mcu. that the way i'm trying to confirm my actions, if anyone understand the p...

How to deactive XIP in QSPI

Hi, ST example show how to active XIP to read after erase/write data to QSPI. We are success with those step.And, in case we want to change data, we need to deactive XIP. I set command back to Write Directly mode but look like after XIP is enable the...

STM32H7 Dual core - power consumption M4 vs M7

Hello,While I was looking for a new MCU, I came across STM32H7 dual core mcus, with M4 and M7.I directly thought that it could be versatile for many usage, M7 for high performance, M4 to mix performances/ and power consumption (and from what I unders...

disco board external flash c code

hello everyone,i am working with stm32f469 disco board. looking for external flash MICRON N25Q128A13EF840F code

I receive from pc to micro a uart buffer of ASCII value that rappresent a float number. How can transform this buffer in float number?

Address calculation using sizeof() operator

I am a little bit confusing with Address calculation using sizeof() operator.I am writing a program for DMA transfer half a buffer in a time.Such as,---------   1st:      HAL_SPI_Transmit_DMA(&hspi1, ptr1, buf_len/2) ;   2nd:     HAL_SPI_Transmit_DMA...