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LED Outputs for MCDU

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Signed-off-by: fly <merspieler@alwaysdata.net>
This commit is contained in:
fly 2024-09-11 18:10:40 +02:00
parent f45380aa3c
commit 6449f537fb
2 changed files with 32 additions and 20 deletions
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18
Pedestal/MCDU/README.md
View file

@ -1,14 +1,16 @@
# MCDU
## USB HID
### Output
One byte output, they match to indications as follows
* 0x01: FM
* 0x02: FAIL
* 0x04: FM2
* 0x08: RDY
* 0x0F: MENU
* 0x10: IND
* 0x20: FM1
2 Byte output, consisting of
* 1 Byte for the reportId (always value 1)
* 1 Byte for indicator LEDs, each bit controls one item:
* 0x01: FM
* 0x02: FAIL
* 0x04: FM2
* 0x08: RDY
* 0x10: MENU
* 0x20: IND
* 0x40: FM1
## Display
I couldn't find a matching display which fits between all the components on the front so I created a cutout in the PCB and put the display behind the PCB.

34
Pedestal/MCDU/firmware/src/main.rs
View file

@ -26,6 +26,17 @@ use usbd_human_interface_device::prelude::*;
use crate::device::{CustomConfig, CustomInputReport};
macro_rules! define_output_states {
($bit:literal, $pin:ident, $output:ident, $io_pins:ident) => {
if $output.leds & $bit == $bit {
$io_pins.$pin.set_high();
}
else {
$io_pins.$pin.set_low();
}
};
}
// TODO compiler throws error when initializing pa15 and pb4
struct MyPins {
// Input Col select
@ -128,7 +139,7 @@ fn main() -> ! {
};
// ====================== Pin setup =================
let mut input_pins = MyPins {
let mut io_pins = MyPins {
// Inputs Col Select
pa4: gpioa.pa4.into_push_pull_output(&mut gpioa.crl),
pa5: gpioa.pa5.into_push_pull_output(&mut gpioa.crl),
@ -169,7 +180,7 @@ fn main() -> ! {
pc14: gpioc.pc14.into_push_pull_output(&mut gpioc.crh), // FM1
};
// let mut last = get_report(&mut input_pins);
// let mut last = get_report(&mut io_pins);
// ====================== Timer setup ===============
// let timer = Instant;
@ -177,7 +188,7 @@ fn main() -> ! {
// ====================== Main loop =================
loop {
let report = get_report(&mut input_pins);
let report = get_report(&mut io_pins);
// TODO figure out timer and only send in like 1ms intervals or on change
// if report != last {
match consumer.device().write_report(&report) {
@ -189,7 +200,7 @@ fn main() -> ! {
// last = report;
}
Err(e) => {
input_pins.pa10.set_high(); // set as indicator that this has happened
io_pins.pa10.set_high(); // set as indicator that this has happened
core::panic!("Failed to write consumer report: {:?}", e)
}
}
@ -200,14 +211,13 @@ fn main() -> ! {
Err(UsbHidError::WouldBlock) => {}
Ok(output) => {
// LED outputs
// FM
if output.leds & 0x1 == 0x1 {
input_pins.pa9.set_high();
}
else {
input_pins.pa9.set_low();
}
// TODO rest of LEDs
define_output_states!(0x1, pa9, output, io_pins); // FM
define_output_states!(0x2, pa10, output, io_pins); // FAIL
define_output_states!(0x4, pb8, output, io_pins); // FM2
define_output_states!(0x8, pb9, output, io_pins); // RDY
define_output_states!(0x10, pc12, output, io_pins); // MENU
define_output_states!(0x20, pc13, output, io_pins); // IND
define_output_states!(0x40, pc14, output, io_pins); // FM1
}
Err(e) => {
core::panic!("Failed to write consumer report: {:?}", e)