About KPras.2

KPras.2 · 2024-01-12

Dear Sir,I have interfaced SDHC card 32GB of Sandisk with STM32L452RET6 microcontroller SDMMC1 peripheral in mode - SD 4 bit wide bus. In my device SD card as a Datalogger.Issue - When my device is working mean data is logging (Data writing in SD car...

KPras.2 · 2023-02-16

Dear Community Member, I am working on the data acquisition and logging is SD card. In this project i am using stm32l452RET6 uC to interface SD card in SDIO mode with fatfs. It is working file when we are logging for the shorter time. I am creating o...

KPras.2 · 2022-12-18

KPras.2 · 2022-11-15

KPras.2 · 2024-02-12

Dear Tesla DeLorean,1. Im my procject version of FAT fs is R0.12c (March 04, 2017).2. There is no any error reported otherwise my code was hanged in while(1) but file writing were done after weird file creation.3. a) When i was starting ...

KPras.2 · 2024-02-12

Dear ST community member,Very good afternoon to all.PFA image file name "Issue file created in the SD card" of the created weired file in sd card.What will be the reason of these weired file creation??In attache image - DATA1.TXT and DATA2.TXT, SETUP...

KPras.2 · 2024-01-14

Dear Sir,Thanks for the reply.Yes i have cut trace of the CMD line then it instant function returns error.This procedure i am doing in debug mode. I have already place break point for the scanning of error. When debugger received error then its code ...

KPras.2 · 2023-02-16

Are there any other reason to weird behavior of the sd card writing in sdio mode???

KPras.2 · 2023-02-16

Dear Community member, Thanks for your reply.I have checked every buffer size and data type which are responsible to write are ok. I am using function to write sd card as per bellow.Mount sd card once.Create DATA.txt file to write once and write data...

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How to fix error return by SDMMC_GetCmdResp1

1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create in sd card other than our create file. 2. Some times file corrupt and not open on the computer. What is the reason of this issue??

Dear Sir,I am using STM32L452RET6 for the SD card interface in SDIO with BUS_WIDE_4B mode in interrupt mode.You can find attached .ioc file for the reference. I am writing 512 bytes using f_write function then it takes time to write approx 13mili sec.

Microcontroller STM32L452RET6 using to interface SD card with SDIO(4bit bus) fatfs, freertos and dma by STMCube generated code. But generated code is not working and even Card Mount is not possible. What is the reason?? Please answer ASAP

Re: 1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create

Re: 1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create

Re: How to fix error return by SDMMC_GetCmdResp1

Re: 1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create in sd card other than our create file. 2. Some times file corrupt and not open on the computer. What is the reason of this issue??

Re: 1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create in sd card other than our create file. 2. Some times file corrupt and not open on the computer. What is the reason of this issue??