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SPI finish interrupt is not working under DMA mode // Batch Async SPI Transfers with Bulk Data Exhibit Unreliable Behavior #33

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andelf opened this issue Sep 27, 2024 · 2 comments
Open

SPI finish interrupt is not working under DMA mode // Batch Async SPI Transfers with Bulk Data Exhibit Unreliable Behavior #33

andelf opened this issue Sep 27, 2024 · 2 comments

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@andelf
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andelf commented Sep 27, 2024 •
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It seems that Future returns before the SPI transfer has finished.

Only occurs when bulk data is transferred under slow SPI frequency.

UPDATE:

SPI finish interrupt is not working under DMA mode.
@andelf
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andelf commented Sep 27, 2024 •
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Bug in async fn transfer_inner().
DMA finish is awaited. No RX/TX finish signal is awaited.

andelf added a commit that referenced this issue Sep 28, 2024
@andelf
fix(spi): add busy loop waiting for tx finish
a6e2dfc 
See-also #33
@andelf andelf changed the title Batch Async SPI Transfers with Bulk Data Exhibit Unreliable Behavior SPI finish interrupt is not working under DMA mode // Batch Async SPI Transfers with Bulk Data Exhibit Unreliable Behavior Sep 28, 2024
andelf added a commit that referenced this issue Sep 28, 2024
@andelf
fix(spi): add busy loop waiting for tx finish
32fb3bd 
See-also #33
@andelf
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andelf commented Sep 28, 2024

Added busy-loop waiting to address the issue. This issue will remain open to document the hardware behavior.

@andelf andelf mentioned this issue Sep 30, 2024
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@andelf