Add more thorough I8080 HIL tests (#2173)
* Add I8080 HIL test * add fixme comment * fmt --------- Co-authored-by: Dominic Fischer <git@dominicfischer.me>
This commit is contained in:
Dominic Fischer
GitHub
parent
cc4c6e1a8e
commit
9de459c663
@ -8,21 +8,29 @@
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use esp_hal::{
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dma::{Dma, DmaDescriptor, DmaPriority},
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dma_buffers,
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gpio::NoPin,
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gpio::{Io, NoPin},
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lcd_cam::{
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lcd::i8080::{Command, Config, TxEightBits, I8080},
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lcd::i8080::{Command, Config, TxEightBits, TxSixteenBits, I8080},
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BitOrder,
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LcdCam,
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},
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pcnt::{
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channel::{CtrlMode, EdgeMode},
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Pcnt,
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},
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prelude::*,
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};
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use hil_test as _;
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use static_cell::ConstStaticCell;
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const DATA_SIZE: usize = 1024 * 10;
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struct Context<'d> {
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lcd_cam: LcdCam<'d, esp_hal::Blocking>,
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pcnt: Pcnt<'d>,
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io: Io,
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dma: Dma<'d>,
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tx_buffer: &'static [u8],
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tx_buffer: &'static mut [u8],
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tx_descriptors: &'static mut [DmaDescriptor],
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}
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@ -36,11 +44,15 @@ mod tests {
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let peripherals = esp_hal::init(esp_hal::Config::default());
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let dma = Dma::new(peripherals.DMA);
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let lcd_cam = LcdCam::new(peripherals.LCD_CAM);
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let (_, _, tx_buffer, tx_descriptors) = dma_buffers!(DATA_SIZE, 0);
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let pcnt = Pcnt::new(peripherals.PCNT);
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let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
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let (_, _, tx_buffer, tx_descriptors) = dma_buffers!(0, DATA_SIZE);
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Context {
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lcd_cam,
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dma,
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pcnt,
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io,
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tx_buffer,
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tx_descriptors,
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}
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@ -89,4 +101,248 @@ mod tests {
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.unwrap();
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xfer.wait().unwrap();
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}
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#[test]
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fn test_i8080_8bit_is_seen_by_pcnt(ctx: Context<'static>) {
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// FIXME: Update this test to exercise all the I8080 output signals once the
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// issue with configuring pins as outputs after inputs have been sorted
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// out. See https://github.com/esp-rs/esp-hal/pull/2173#issue-2529323702
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let cs_signal = ctx.io.pins.gpio8;
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let unit0_signal = ctx.io.pins.gpio11;
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let unit1_signal = ctx.io.pins.gpio12;
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let unit2_signal = ctx.io.pins.gpio16;
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let unit3_signal = ctx.io.pins.gpio17;
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let pcnt = ctx.pcnt;
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let unit_ctrl = cs_signal.peripheral_input();
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let unit0_input = unit0_signal.peripheral_input();
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let unit1_input = unit1_signal.peripheral_input();
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let unit2_input = unit2_signal.peripheral_input();
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let unit3_input = unit3_signal.peripheral_input();
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pcnt.unit0
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit1
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit2
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit3
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit0
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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pcnt.unit1
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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pcnt.unit2
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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pcnt.unit3
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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let channel = ctx.dma.channel0.configure(false, DmaPriority::Priority0);
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let pins = TxEightBits::new(
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unit0_signal,
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unit1_signal,
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unit2_signal,
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unit3_signal,
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NoPin,
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NoPin,
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NoPin,
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NoPin,
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);
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let mut i8080 = I8080::new(
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ctx.lcd_cam.lcd,
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channel.tx,
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ctx.tx_descriptors,
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pins,
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20.MHz(),
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Config::default(),
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)
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.with_cs(cs_signal)
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.with_ctrl_pins(NoPin, NoPin);
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// This is to make the test values look more intuitive.
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i8080.set_bit_order(BitOrder::Inverted);
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pcnt.unit0.channel0.set_edge_signal(unit0_input);
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pcnt.unit1.channel0.set_edge_signal(unit1_input);
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pcnt.unit2.channel0.set_edge_signal(unit2_input);
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pcnt.unit3.channel0.set_edge_signal(unit3_input);
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pcnt.unit0.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit1.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit2.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit3.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit0.resume();
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pcnt.unit1.resume();
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pcnt.unit2.resume();
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pcnt.unit3.resume();
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let data_to_send = [
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0b0000_0000,
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0b1010_0000,
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0b0110_0000,
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0b1110_0000,
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0b0000_0000,
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0b1000_0000,
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0b0100_0000,
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0b1010_0000,
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0b0101_0000,
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0b1000_0000,
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];
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let tx_buffer = ctx.tx_buffer;
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tx_buffer.fill(0);
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tx_buffer[..data_to_send.len()].copy_from_slice(&data_to_send);
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let xfer = i8080.send_dma(Command::<u8>::None, 0, &tx_buffer).unwrap();
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xfer.wait().unwrap();
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let actual = [
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pcnt.unit0.get_value(),
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pcnt.unit1.get_value(),
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pcnt.unit2.get_value(),
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pcnt.unit3.get_value(),
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];
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let expected = [5, 3, 2, 1];
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assert_eq!(expected, actual);
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}
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#[test]
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fn test_i8080_16bit_is_seen_by_pcnt(ctx: Context<'static>) {
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// FIXME: Update this test to exercise all the I8080 output signals once the
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// issue with configuring pins as outputs after inputs have been sorted
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// out. See https://github.com/esp-rs/esp-hal/pull/2173#issue-2529323702
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let cs_signal = ctx.io.pins.gpio8;
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let unit0_signal = ctx.io.pins.gpio11;
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let unit1_signal = ctx.io.pins.gpio12;
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let unit2_signal = ctx.io.pins.gpio16;
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let unit3_signal = ctx.io.pins.gpio17;
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let pcnt = ctx.pcnt;
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let unit_ctrl = cs_signal.peripheral_input();
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let unit0_input = unit0_signal.peripheral_input();
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let unit1_input = unit1_signal.peripheral_input();
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let unit2_input = unit2_signal.peripheral_input();
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let unit3_input = unit3_signal.peripheral_input();
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pcnt.unit0
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit1
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit2
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit3
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.channel0
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.set_ctrl_mode(CtrlMode::Keep, CtrlMode::Disable);
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pcnt.unit0
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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pcnt.unit1
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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pcnt.unit2
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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pcnt.unit3
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.channel0
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.set_input_mode(EdgeMode::Hold, EdgeMode::Increment);
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let channel = ctx.dma.channel0.configure(false, DmaPriority::Priority0);
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let pins = TxSixteenBits::new(
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NoPin,
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NoPin,
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NoPin,
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unit0_signal,
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NoPin,
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NoPin,
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NoPin,
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unit1_signal,
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NoPin,
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NoPin,
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NoPin,
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unit2_signal,
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NoPin,
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NoPin,
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NoPin,
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unit3_signal,
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);
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let mut i8080 = I8080::new(
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ctx.lcd_cam.lcd,
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channel.tx,
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ctx.tx_descriptors,
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pins,
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20.MHz(),
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Config::default(),
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)
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.with_cs(cs_signal)
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.with_ctrl_pins(NoPin, NoPin);
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// This is to make the test values look more intuitive.
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i8080.set_bit_order(BitOrder::Inverted);
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pcnt.unit0.channel0.set_edge_signal(unit0_input);
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pcnt.unit1.channel0.set_edge_signal(unit1_input);
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pcnt.unit2.channel0.set_edge_signal(unit2_input);
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pcnt.unit3.channel0.set_edge_signal(unit3_input);
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pcnt.unit0.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit1.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit2.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit3.channel0.set_ctrl_signal(unit_ctrl.clone());
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pcnt.unit0.resume();
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pcnt.unit1.resume();
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pcnt.unit2.resume();
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pcnt.unit3.resume();
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let data_to_send = [
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0b0000_0000_0000_0000,
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0b0001_0000_0001_0000,
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0b0000_0001_0001_0000,
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0b0001_0001_0001_0000,
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0b0000_0000_0000_0000,
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0b0001_0000_0000_0000,
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0b0000_0001_0000_0000,
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0b0001_0000_0001_0000,
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0b0000_0001_0000_0001,
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0b0001_0000_0000_0000,
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];
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static TX_BUF: ConstStaticCell<[u16; 10]> = ConstStaticCell::new([0; 10]);
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let tx_buffer = TX_BUF.take();
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tx_buffer.copy_from_slice(&data_to_send);
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let xfer = i8080.send_dma(Command::<u16>::None, 0, &tx_buffer).unwrap();
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xfer.wait().unwrap();
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let actual = [
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pcnt.unit0.get_value(),
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pcnt.unit1.get_value(),
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pcnt.unit2.get_value(),
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pcnt.unit3.get_value(),
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];
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let expected = [5, 3, 2, 1];
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assert_eq!(expected, actual);
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}
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}
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