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Switch to 32bit SPI.

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This commit is contained in:
Dario Nieuwenhuis
2022-07-16 18:06:57 +02:00
parent 7dfdea8797
commit 931e3d7ee0
2 changed files with 55 additions and 71 deletions
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14
examples/rpi-pico-w/src/main.rs
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@ -153,17 +153,17 @@ impl SpiBusFlush for MySpi {
}
}
impl SpiBusRead for MySpi {
impl SpiBusRead<u32> for MySpi {
type ReadFuture<'a> = impl Future<Output = Result<(), Self::Error>>
where
Self: 'a;
fn read<'a>(&'a mut self, words: &'a mut [u8]) -> Self::ReadFuture<'a> {
fn read<'a>(&'a mut self, words: &'a mut [u32]) -> Self::ReadFuture<'a> {
async move {
self.dio.set_as_input();
for word in words {
let mut w = 0;
for _ in 0..8 {
for _ in 0..32 {
w = w << 1;
// rising edge, sample data
@ -183,20 +183,20 @@ impl SpiBusRead for MySpi {
}
}
impl SpiBusWrite for MySpi {
impl SpiBusWrite<u32> for MySpi {
type WriteFuture<'a> = impl Future<Output = Result<(), Self::Error>>
where
Self: 'a;
fn write<'a>(&'a mut self, words: &'a [u8]) -> Self::WriteFuture<'a> {
fn write<'a>(&'a mut self, words: &'a [u32]) -> Self::WriteFuture<'a> {
async move {
self.dio.set_as_output();
for word in words {
let mut word = *word;
for _ in 0..8 {
for _ in 0..32 {
// falling edge, setup data
self.clk.set_low();
if word & 0x80 == 0 {
if word & 0x8000_0000 == 0 {
self.dio.set_low();
} else {
self.dio.set_high();