I'm working with a STM32L082 (CMWX1ZZABZ-091) and I can not get an accurate value of VRef (ADC_IN17). This is important because the device is battery powered.I am using the VREFINT_CAL (0x1FF8 0078 - 0x1FF8 0079) but there is an error of about 100mV....
I am trying to port Secure bootloader project implemented for STM32L432KC Nucleo to my custom boards that use STM32L431VCIx. I have tested the example implementation on Nucleo by sending encrypted firmware via TeraTerm using Ymodem. This works. But t...
What is the total number of I2C's in STM32F051R4T6TR controller IC.
I am using STM32F4 discovery board. Some sensors data which are gathered by different sensors is saved on an SD card. Now I want to transfer these .txt files to an FTP server. I am not able to send the files as packages, or i m not sure how. Seeking...
hi everyone. my project uses STM32f407, i read 4 channesl analog by ADC1 and using DMA .when i debug the program, i can only read the first analog value... please help me. bellow this is my program#include "stm32f4xx.h" #include "stdio.h" GPIO_Ini...
I need a development kit/board with STM32H753 MCU. I find similar - https://www.st.com/en/evaluation-tools/nucleo-h743zi.html And decide to solder STM32H753 instead of STM32H743.I saw STM32H753I-EVAL, but it is too expensive. What is the difference ...
Hello everyone.Sorry for post this question again. But I really need some help.I am trying to write a program can take picture from camera and save it into SD card when I press a button.I had finish this, but it had one problem. I don't know why but ...
hi, i have the HAL driver for sd card and fatfs software module but i can't understand the mechanisms that both hal and fatfs api's, it's all confused me. stuck here unable to move forward.@Community member @Community member
Posted on February 15, 2018 at 15:52Hello.Ive worked with the two boards comm DMA sample program and it works but it only works half duplex.The flow is:Init UART handle,Transmit dma wait for tx interupt callbackreinitalize UART handleRecieve dma wai...
Hi everyone,I'm using the DMA to receive the data from external flash via DMA. Can the SPI module transmit data while receiving from external flash at the same time? Or will it block this transmitting until completing the receiving? Or can simultaneo...
