About DCajigal

DCajigal · 2021-12-23

I am trying to build an iap that reads a .bin file from a uSD card and loads it into the flash memory, but something is happening with the erase function. If i run this bootloader and the flash is empty everything works just fine. However, if the fla...

DCajigal · 2021-12-10

Hi,I am trying to use the ADC with DMA but the values on the buffer are not being updated. Next i detail the steps that i have done:Disabled the ICache and DCache.Place the DMA buffer in a separate section in RAM_D2 with the address 0x30000000, so th...

DCajigal · 2021-12-03

Hi everyone,I have to port one proyect from a STM32F4 to a STM32H743. In this project it is important to use the SPI through DMA, so after reading a bit about the DMA-Cache issue in this microcontroller i decided to disable the D-Cache in order to ma...

DCajigal · 2021-09-22

Hi,This is my first project trying to use lwIp, so sorry for all the mistakes that i could be making...The thing is that i would need to use lwIp over a STM32F479VI LQFP100. But this mcu does not have Ethernet, so the lwIp option does not appear in C...

DCajigal · 2021-08-04

Hi,we are starting to learn about LwIP in order to create a http server in a stm32f4. At this moment we have a functional hardware that act as http client using a modem with AT Commands (the quectel MC60). However, now we have been asked to create a ...

DCajigal · 2022-01-14

Maybe i have missed something but in the end it seems that the problem was in the flash initialization. I had this: HAL_FLASH_Unlock(); __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGSERR | FLASH_FLAG...

DCajigal · 2022-01-14

I am really sorry for the late answer, i could not try it anymore until now. I am erasing the whole memory starting from the address 0x08020000 and it is not happening a watchdog event.The erase function returns HAL_OK but then the write function cra...

DCajigal · 2021-12-23

finally i changed it in order not to work with DMA... thanks for the help anyway

DCajigal · 2021-12-12

I have also tried wihtout MPU but it did not work

DCajigal · 2021-12-09

I have seen that it i uncomment one section of my code, it runs. I dont see anything extrange in that code:However, in spite of this, the DMA is not working. I call the function "status = HAL_SPI_TransmitReceive_DMA(spiHandler, tx_block, block, size)...

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STM32H7 HAL_FLASHEx_Erase returns HAL_OK but something extrange is happening

STM32H7 ADC with DMA not working, Cache disabled

STM32H743 SPI DMA NOT WORKING, CACHE DISABLED

How add LwIP in a non-Ethernet device?

Example or guide to use LwIP PPPos ?

Re: STM32H7 HAL_FLASHEx_Erase returns HAL_OK but something extrange is happening

Re: STM32H7 HAL_FLASHEx_Erase returns HAL_OK but something extrange is happening

Re: STM32H7 ADC with DMA not working, Cache disabled

Re: STM32H7 ADC with DMA not working, Cache disabled

Re: STM32H743 SPI DMA NOT WORKING, CACHE DISABLED