JPEG Decode stops working after SPI interface has been used
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2019-08-15 6:10 AM
Hi.
I am using STM32F769I Discovery board with JPEG Codec and SPI interface.
The JPEG Decoding is working with DMA from FLASH (inspired by JPEG_DecodingFromFLASH example for STM32F769I EVAL Boards).
However, after I received a SPI package via DMA, the JPEG Decoding stops working. The JPEG process goes on and on but will not ever end?
Any suggestions for the cause of this behaviour? I thought about an interefrence between the two DMA services/stream of the SPI and JPEG process, but I could not identify nor solve the problem...
(I executed exactly the same JPEG decoding before and after a SPI reception, with same image data from FLASH. So there shouln't be the reason)
Thanks!
- Labels:
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DMA
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DMA2D
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JPEG
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SPI
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STM32F7 Series
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2019-08-27 1:51 AM
Does nobody have an explanaition for this problem? Or any idea or hint for the possible reason?
