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DLane.1
Associate II
since ‎2020-05-14
‎2023-06-14

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JPEG compression artifacts

2020-11-11
HelloI am using an STM32H743 MCU that implements acquisition of frame from camera and compress it to JPEG format.The setup to compress the image is with hardware JPEG encoder with MDMA stream.Image resolution is 240*320 pixels, greyscale. The procedu...

STM32H7 JPEG encode for grayscale inputs

2020-06-14
HelloI am trying to encode an image of (160*120) in grayscale format - i.e a bmp file of 1bpp color depth.Unfortunately, the encoder would not finish its conversion. and the `HAL_JPEG_EncodeCpltCallback` is not called.My setup is based on the `JPEG...

DCMI with DMA interface to AXI_SRAM results in TRANSFER ERROR

2020-05-14
HelloMy setup contains an STM32H743 with a camera attached via DCMI interface.I am trying to acquire single snapshot, but unfortunately experiencing errors. I declared the following variable on my SRAM#define BUFF_SIZE (160*120) ALIGN_32BYTES(uint8_t...
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