About qbaj

qbaj · 2021-05-06

Hi,I have STM32F030 which is connected to STM32L082 with UART (Rx/Tx), RESET and BOOT0 line. When needed STM32F030 is able to restart STM32L082, run ROM Bootloader, erase and program flash.But when I have clean STM32L082, empty flash on it on product...

qbaj · 2020-06-30

Hi,I have error (Write/Read Transfer Error) when I'm using JPEG decoder via DMA HAL_JPEG_Decode_DMA(hjpeg ,(uint8_t *)JPEGSourceAddress ,CHUNK_SIZE_IN ,(uint8_t *)FrameBufferAddress ,CHUNK_SIZE_OUT);I don't get any interrupts from JPEG but from MDMA ...

qbaj · 2020-05-24

Hi,I have problem (OVERRUN flag) with data transfer from DCMI to external SDRAM.I have STM32H753 which in AN5020 has architecture like this:(Application note, Digital camera interface (DCMI) for STM32 MCUs)So it has connection between DCMI and FMC vi...

qbaj · 2020-06-30

Hi there,Yes, I'm using LTDC for LCD screen and also TouchGFX. I've solved problem by buffering image in RAM_D2, so it looks like:DCMI -> (DMA) -> CAPTURE_BUFFER in RAM_D2 -> (MDMA) -> FRAME_BUFFER in SD_RAM -> (PixelDataWidget from TouchGFX) -> LCD_...

qbaj · 2020-05-26

When HAL_DCMI_IRQHandler triggered I got:So for DCMI I have in MISR register DCMI_FLAG_OVRRI = 0x02 and for DMA in LISR register DMA DMA_LISR_FEIF0 = 0x01.FIFO treshold DMA_FIFO_THRESHOLD_HALFFULL without burst DMA_MBURST_SINGLE no effect.

qbaj · 2020-05-26

Hi again,ad.4)I was able to run DMA1 with DCMI and AXI SRAM.hdma_dcmi.Instance = DMA1_Stream0; hdma_dcmi.Init.Request = DMA_REQUEST_DCMI; hdma_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY; hdma_dcmi.Init.Mode = DMA_NORMAL; hdma_dcmi.Init.Priority = DMA...

qbaj · 2020-05-25

Do you have align for buffer to use DMA?ALIGN_32BYTES(uint8_t dcmi_capture_buffer[DCMI_CAPTURE_BUFFER_SIZE]) __attribute__((section(".SDRAM")));

qbaj · 2020-05-24

Hi,1)did you try change destination for HAL_DCMI_Start_DMA? I have problem with AXI_SRAM and SDRAM, but RAM1/2/3 works for me.ALIGN_32BYTES(uint8_t buffer1[BUFFER_SIZE]) __attribute__((section(".RAM_D1"))); /*AXI_SRAM*/ ALIGN_32BYTES(uint8_t buffer2[...

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OBL_LAUNCH with Bootloader (ST ROM) in STM32L0

JPEG - MDMA Write/Read Transfer Error

STM32H7 DCMI to SDRAM with DMA - OVERRUN flag

Re: STM32H7 DCMI to SDRAM with DMA - OVERRUN flag

Re: STM32H7 DCMI to SDRAM with DMA - OVERRUN flag

Re: STM32H7 DCMI to SDRAM with DMA - OVERRUN flag

Re: STM32F767 DCMI DMA image data mis-aligned

Re: DCMI with DMA interface to AXI_SRAM results in TRANSFER ERROR