thomas/HandCrankMPPT-Firmware-Rust
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DMA changes; still not working

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This commit is contained in:
Thomas Kolb 2023-01-04 22:28:43 +01:00
parent 8790a7ce04
commit 86691868ea
1 changed files with 3 additions and 4 deletions
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7
src/main.rs
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@ -54,10 +54,9 @@ const HIGH: u16 = 25000;
/// if your board has a different frequency
const XTAL_FREQ_HZ: u32 = 12_000_000u32;
fn get_adc_channel_blocking<S, D, const DS: u8, E>(dma: &hal::dma::Channels, spi: &mut rp2040_hal::Spi<S, D, DS>, cs_pin: &dyn embedded_hal::digital::v2::OutputPin<Error = E>) -> u16
fn get_adc_channel_blocking<BIDI, WORD, E>(dma: &hal::dma::Channels, spi: &mut BIDI, cs_pin: &dyn embedded_hal::digital::v2::OutputPin<Error = E>) -> u16
where
S: hal::spi::State,
D: hal::spi::SpiDevice,
BIDI: hal::dma::ReadTarget<ReceivedWord = WORD> + hal::dma::WriteTarget<TransmittedWord = WORD>,
E: core::fmt::Debug
{
let mut tx_buf: [u8; 3] = [0x06, 0x40, 0x00];
@ -67,7 +66,7 @@ where
cs_pin.set_low().unwrap();
// Use BidirectionalConfig to simultaneously write to spi from tx_buf and read into rx_buf
let transfer = bidirectional::Config::new((dma.ch0, dma.ch1), &tx_buf, spi, &rx_buf).start();
let transfer = bidirectional::Config::new((dma.ch0, dma.ch1), &tx_buf, spi, &mut rx_buf).start();
// Wait for both DMA channels to finish
let ((_ch0, _ch1), tx_buf, _spi, rx_buf) = transfer.wait();
cs_pin.set_high().unwrap();