About JDonn.1

JDonn.1 · 2022-03-10

I have an STM32L4R5ZI-P board. I have a SD Card connected via a 4-bit SDMMC (I'm using a Pmod SD Card Module).I can successfully read and write to the SD Card using FatFS.I have set up the USB_DEVICE and USB_OTG_FS as described here https://controlle...

JDonn.1 · 2021-12-16

Hi everyone,I'm new to the ST world so I apologise if I am asking a simple question.I have a NUCLEO-L4R5ZI-P, I made a new project and cleared the pin outs and started fresh.I have enabled USART2 and can send and receive data in polling mode.If I go ...

JDonn.1 · 2022-03-11

Hi @Community member ,It's wired for 4-bit so my Chip Select is Data3. Write Protect is at GND and Card Detect is on GPIO_Input (Although I'm not sure what to do with it).My confusion comes in that I can read/write to/from the SD card but it can't p...

JDonn.1 · 2022-03-10

Hi @Community member,I have pull-ups on Data0, Data1, Data2, Data3 and CMD for the SDMMC (took a while to figure out why it wasn't working). Chip Select is connected to GND currently and I can read/write in the main code using FatFS.

JDonn.1 · 2021-12-16

The IRQ is auto-generated, I also have an callback handler, it currently does nothing:void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { HAL_UART_Receive_IT (&huart2, data, 10); }This issue is present whether I call HAL_UART_Receive_IT (&h...

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Access SD Card via USB (MSC) results in "Please insert a disc into USB Drive"

Enabling Interrupt for UART stops HAL_Delay

Re: Access SD Card via USB (MSC) results in "Please insert a disc into USB Drive"

Re: Access SD Card via USB (MSC) results in "Please insert a disc into USB Drive"

Re: Enabling Interrupt for UART stops HAL_Delay