About Abin

Abin · 2024-11-08

Hai all,I am using ST Discovery Board (STM32f407) for SDIO based SD card interfacing and using Free RTOS.Here I already verified that SDIO with FatFs functions are working without Free RTOS.But whenever we enable free RTOS, that moment onwards FatFs ...

Abin · 2024-10-21

Hai all,I am using SDIO protocol for interfacing SD card with STM42F446RE.But While accessing the SD card, I am facing the following issues.1. Unable to access the card, even the card size , free space etc2. Also unable to open directory, and files. ...

Abin · 2024-06-11

Hai All, We can configure a GPIO pin either as a Push-Pull or Open-drain configuration. Can anybody explain briefly, what are the applications of Open Drain configuration?

Abin · 2024-05-30

Hai All,I am using USB OTG using ULPI protocol in my STM32F series controller.I entered a print statement inside the USB interrupt handler to monitor the interrupt. Then I found that whenever I connect USB drive the interrupt is hitting continuously ...

Abin · 2024-03-14

Hai All, I am facing an issue on USB File system accessing. Here I am using ULPI protocol for accessing the USB Drive via USB3300 IC.Here I am using an Interrupt method for detecting the USB drive. When we connect, interrupt is happening and File dir...

Abin · 2024-11-09

I have referred the link.But here while going to access files using FatFs, the problem is arising. Have you checked that SDIO+FatFs and Free RTOS will work smoothly?Here DMA is not a solution for that.It is not woking.Can anybody help me?

Abin · 2024-11-03

Hai All, I want to mention my points about the SDIO protocol in the F446RE Nucleo Board.1. First I checked the Clock frequency and verified that it is always 381 KHz all the times. The image from the oscilloscope is attached here.2. Even if the frequ...

Abin · 2024-10-22

Hai @EZHON.1 Thank you for your reply. I will check it. Moreover, I checked the clock frequency. It is coming as 334KHz. I configured HCLK as 16 MHz from internal RC oscillator.And the division factor is 18.This division factor is derived from the fo...

Abin · 2024-10-22

Hai,I will explain my points clearly.I have Nucleo f446RE board and I need to interface an SD card with the same board using SDIO protocol.I am using SD card adaptor for connecting the SD card with Nucleo Board. Please see the image.The connection is...

Abin · 2024-10-21

As per my knowledge, we need to give 10k pullup resistor externally to each lines(D0-D3 , CMD) except CLK.Is there any extra hardware components added in the Nucleo F446RE series.Could you please tell me.

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FATFS +SDIO and Free RTOS / FR NOT READY issue

Unable to access SD Card using SDIO in F446RET6

What are the applications of open drain GPIO configuration.

USB OTG (ULPI) Interrupt hits continuously after connecting the USB drive

USB OTG HS - ULPI (Using FatFs Middleware ) Disk Error issue

Re: FATFS +SDIO and Free RTOS / FR NOT READY issue

Re: Unable to access SD Card using SDIO in F446RET6

Re: Unable to access SD Card using SDIO in F446RET6

Re: Unable to access SD Card using SDIO in F446RET6

Re: Unable to access SD Card using SDIO in F446RET6