fix(BLE): Re-implement UART with DMA on MAX32690 #1280
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…into fix/me18-uart-dma
crsz20
added
WIP
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/clang-format-run |
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Remove the PAL_UART Example |
EricB-ADI
approved these changes
Dec 9, 2024
sihyung-maxim
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to analogdevicesinc/hal_adi
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Dec 9, 2024
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Description
Initializing a UART peripheral with
MXC_UART_IBRO_CLKwould cause the MAX32690 to occasionally fail to assert a half-empty interrupt signal. This is a hardware issue.In practice, this causes the Tx buffer to get stuck and eventually overflows. This is evident in the BLE examples with a large amount of serial output.
Solution
This device's
pal_uart.cin Cordio has been re-implemented with DMA to rely on other interrupt signals to handle buffer management more reliably.Remarks
Eric added a PAL_UART example to help test echoing in the serial output.