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stm32: Start DMA before clearing, avoid panic in updater ringbuffer impl

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This commit is contained in:
Peter Krull 2024-09-19 20:07:08 +02:00
parent 4fcc8e39d6
commit 3aeeeb0d78
1 changed files with 1 additions and 1 deletions
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embassy-stm32/src/usart/ringbuffered.rs
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@ -81,9 +81,9 @@ impl<'d> RingBufferedUartRx<'d> {
/// Note: This is also done automatically by [`read()`] if required. /// Note: This is also done automatically by [`read()`] if required.
pub fn start_uart(&mut self) { pub fn start_uart(&mut self) {
// Clear the buffer so that it is ready to receive data // Clear the buffer so that it is ready to receive data
self.ring_buf.clear();
compiler_fence(Ordering::SeqCst); compiler_fence(Ordering::SeqCst);
self.ring_buf.start(); self.ring_buf.start();
self.ring_buf.clear();
let r = self.info.regs; let r = self.info.regs;
// clear all interrupts and DMA Rx Request // clear all interrupts and DMA Rx Request