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stm32: use interrupt for spi transmit

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This commit is contained in:
xoviat 2021-04-24 13:07:28 -05:00
parent 578d920723
commit 1fef2d08fb
1 changed files with 19 additions and 1 deletions
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20
embassy-stm32/src/f4/spi.rs
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@ -259,6 +259,9 @@ where
let tx_stream = self.tx_stream.take().unwrap(); let tx_stream = self.tx_stream.take().unwrap();
let spi = self.spi.take().unwrap(); let spi = self.spi.take().unwrap();
spi.cr2
.modify(|_, w| w.errie().set_bit().txeie().set_bit().rxneie().set_bit());
// let mut tx_transfer = Transfer::init( // let mut tx_transfer = Transfer::init(
// tx_stream, // tx_stream,
// spi, // spi,
@ -279,9 +282,24 @@ where
for i in 0..(static_buf.len() - 1) { for i in 0..(static_buf.len() - 1) {
let byte = static_buf[i]; let byte = static_buf[i];
nb::block!(write_sr(&spi, byte)); loop {
let fut = InterruptFuture::new(&mut self.spi_int);
match write_sr(&spi, byte) {
Ok(()) => break,
_ => {}
}
fut.await;
}
} }
spi.cr2.modify(|_, w| {
w.errie()
.clear_bit()
.txeie()
.clear_bit()
.rxneie()
.clear_bit()
});
self.tx_stream.replace(tx_stream); self.tx_stream.replace(tx_stream);
self.spi.replace(spi); self.spi.replace(spi);