About frnt

frnt · 2023-12-14

Hello,I'm using a microSD connected with SPI to a STM32F4 microcontroller. I have used MLC micro SD card with fatfs for years without any issues. Recently, I have switched to SLC NAND micro SD, Industrial grade, with Wear Leveling (for application sp...

frnt · 2023-10-25

Hello,I'm just started using a nucleo-h743x. I have configured the I2S to acquire some audio from the a digital microphone.Supposing that I use one of SPI1,2,3 for that, the i2s clock reaching the peripheral should the one that in MX is called (To SP...

frnt · 2023-10-20

Hello,I'm just started using a nucleo-h742x. I have configured the SPI and the Fatfs library using the default settings, the SPI speed was configured at speed below 1Mbit/s. The sys clock is below 100MHz.I always get disk_not_ready error when trying ...

frnt · 2023-09-11

Hello,I measured the performance of uSD card connected through the SPI on Read/Write operation.The weird thing is that the Block read speed is 3x to 4x slower than the write speed. I'm writing/read 4kB of data and the SD card is formatted with 4kB a...

frnt · 2023-08-29

Hello,I would like to design a microphone array with up to 16 microphones. I want to use the stm32h7a3zi board which has a lot of peripherals.I was looking at the DFSDM interface, but with only 8 channels / 8 filters up to 8 pdm microphones can be ha...

frnt · 2023-12-14

I have checked the ffconf.h file but I don't see any special configuration that can help. I see that the microSD is recognized as SD standard which is different from the older ones that were recognized as SDHC.

frnt · 2023-12-14

Hello @Piranha ,yes I’m using CubeIDE with the fatfs version provided by ST. The card is formatted in Fat32, allocation unit 4K.There is an updated version of fatfs that I can import?

frnt · 2023-10-27

Dear @Eleon BORLINI ,do you have any idea on why this is happening?

frnt · 2023-10-25

Thanks, the problem has been solved!

frnt · 2023-10-23

@Pavel A. ,I see. I have looked at the SPI example (SPI_FullDuplex_ComPolling), here the initialization of the SPI: /* Set the SPI parameters */ SpiHandle.Instance = SPIx; SpiHandle.Init.Mode = SPI_MODE_MASTER; SpiHandle.Init.Ba...

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Issue with Fatfs on SLC micro SD with wear leveling

STM32H743 Clock to pdm microphone is not changing

Issues with STM32H7 and SPI on trasmission

Slow block read with SPI fatfs

Array of PDM microphones best bus interface

Re: Issue with Fatfs on SLC micro SD with wear leveling

Re: Issue with Fatfs on SLC micro SD with wear leveling

Re: STM32H743 Clock to pdm microphone is not changing

Re: Issues with STM32H7 and SPI on trasmission

Re: Issues with STM32H7 and SPI on trasmission