About MarcoM

MarcoM · 2022-05-21

Hello, I have a design with an STM32F446RCT6 where I use the FatFS file system and the USB HS as USB Host in Mass Storage Host Class.The design is made with STM32CubeIDE 1.8.0 and the firmware package is V1.26.2 / 16-july-2021.The configuration param...

MarcoM · 2021-07-27

Hi, I have an unsolved issue with SDcard.The project is based on STM32L476, the IDE is Atollic and configuration is made by STM32CucbeMX (as I do with all my designs).Without DMA (no DMA template in FATFS and no configured DMA channels) the SDcard wo...

MarcoM · 2020-02-24

Hello, I am trying to start the bootloader on a STM32F427 to program the MCU via USB port in DFU mode. I am not new to this topic because I wrote some programs for STM32F072 where I can successfully start the bootloader and take externally control of...

MarcoM · 2018-12-12

I am using a STM32072B-EVAL board because I need a working demo about HDMI-CEC.It is clear that there are problems: the original firmware already on the board has errors about icons (some graphics is broken), about images (it hangs if try to show an ...

MarcoM · 2014-03-31

Posted on March 31, 2014 at 15:44Hello, I have a problem similar to the one discussed in the post named ''STM32F103RB - Different Clock Speed Between Reset?''https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=ht...

MarcoM · 2022-05-22

It is related to some missing handler, but:reding a 100Kb file I get the correct behaviourI have not configured any IRQ handlers because all the configurations are made by Cube itself

MarcoM · 2022-05-22

the code of the infinite loop (in startup_stm32f446rctx.s) is this:/** * @brief This is the code that gets called when the processor receives an * unexpected interrupt. This simply enters an infinite loop, preserving * the system state for e...

MarcoM · 2021-10-21

Update: dear @Haithem Rahmani ,after many tests the situation is this:Using DMA2 Channel 5 in TX and DMA2 Channel 4 in RX, as the configuration I have shown, the software doesn't read the SD and (as told) I get a timeout error when it tries to read ...

MarcoM · 2021-10-04

Update: I have found that the ISR is called during the DMA transfer from SD card to memory, but the ISR finds that flag RXOVERR in SDMMC status register (SDMMC_STA) in set, so it disables the DMA and the whole process stops waiting for the 30s timeou...

MarcoM · 2021-10-04

Hi @Haithem Rahmani,I have enabled the option, regenerated and retested. The result is still the same: I get the 30s timeout after HAL_SD_ReadBlocks_DMA() and the SD_read() returns RES_ERROR.I have done the test only now because in the last weeks I ...

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STM32F446RCT6 with FatFS + HSB Host (USB OTG HS) falls in infinite loop

No interrupt in SDcard with DMA on STM32L476 and CubeMX

Starting bootloader from software on STM32F427 to use the USB port in DFU

STM32072B-EVAL : where is the (working) software and updates?

Wrong STM32 clock at startup

Re: STM32F446RCT6 with FatFS + HSB Host (USB OTG HS) falls in infinite loop

Re: STM32F446RCT6 with FatFS + HSB Host (USB OTG HS) falls in infinite loop

Re: No interrupt in SDcard with DMA on STM32L476 and CubeMX

Re: No interrupt in SDcard with DMA on STM32L476 and CubeMX

Re: No interrupt in SDcard with DMA on STM32L476 and CubeMX