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stm32h7: Prevent UART from waiting on TXDMA semaphore
The UART7 TXDMA services TELEM1 with flow control. If CTS is high, the transmitting thread will wait on a semaphore, which may block other threads from acquiring necessary resources to make progress, for example, preventing MAVLINK instances from transmitting. This change in NuttX makes the TXDMA acquire the semaphore in a non-blocking way, preventing this issue.
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David Sidrane
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fc5b868138
commit
1463f9dec8
Submodule platforms/nuttx/NuttX/nuttx updated: e732377530...ed4814f623
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