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Test io bus

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This commit is contained in:
Geens
2025-06-23 19:46:39 +02:00
parent f3bab9461e
commit 63d5522fd9
5 changed files with 264 additions and 88 deletions
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8
firmware/Cargo.toml
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@@ -22,3 +22,11 @@ lto = true # Link-time optimization
codegen-units = 1 # Better optimization
panic = 'abort' # Reduce binary size
strip = false # Keep symbols for debugging
[profile.dev]
debug = true # Keep debug info for better debugging
opt-level = "s" # Optimize for size
lto = true # Link-time optimization
codegen-units = 1 # Better optimization
panic = 'abort' # Reduce binary size
strip = false # Keep symbols for debugging

178
firmware/src/main.rs
View File

@@ -4,11 +4,22 @@
use panic_halt as _;
use cortex_m_rt::entry;
use stm32f0xx_hal::{
prelude::*,
stm32,
delay::Delay,
delay::Delay, prelude::*, stm32
};
struct Bus {
latch_en: stm32f0xx_hal::gpio::gpioa::PA0<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
select_en: stm32f0xx_hal::gpio::gpiob::PB8<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::OpenDrain>>,
pb0: stm32f0xx_hal::gpio::gpiob::PB0<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb1: stm32f0xx_hal::gpio::gpiob::PB1<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb2: stm32f0xx_hal::gpio::gpiob::PB2<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb3: stm32f0xx_hal::gpio::gpiob::PB3<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb4: stm32f0xx_hal::gpio::gpiob::PB4<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb5: stm32f0xx_hal::gpio::gpiob::PB5<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb6: stm32f0xx_hal::gpio::gpiob::PB6<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
pb7: stm32f0xx_hal::gpio::gpiob::PB7<stm32f0xx_hal::gpio::Output<stm32f0xx_hal::gpio::PushPull>>,
}
#[entry]
fn main() -> ! {
// Get device peripherals
@@ -28,18 +39,161 @@ fn main() -> ! {
// Configure GPIO
let gpioa = dp.GPIOA.split(&mut rcc);
let gpiob = dp.GPIOB.split(&mut rcc);
// Configure PA5 as push-pull output (common LED pin)
let mut led = cortex_m::interrupt::free(|cs| {
gpioa.pa9.into_push_pull_output(cs)
let mut bus = cortex_m::interrupt::free(|cs| {
Bus {
latch_en: gpioa.pa0.into_push_pull_output(cs),
select_en: gpiob.pb8.into_open_drain_output(cs),
pb0: gpiob.pb0.into_push_pull_output(cs),
pb1: gpiob.pb1.into_push_pull_output(cs),
pb2: gpiob.pb2.into_push_pull_output(cs),
pb3: gpiob.pb3.into_push_pull_output(cs),
pb4: gpiob.pb4.into_push_pull_output(cs),
pb5: gpiob.pb5.into_push_pull_output(cs),
pb6: gpiob.pb6.into_push_pull_output(cs),
pb7: gpiob.pb7.into_push_pull_output(cs),
}
});
// Blink loop
// Loop
loop {
led.set_high().ok();
delay.delay_ms(2000u16);
led.set_low().ok();
delay.delay_ms(2000u16);
for ic in 0..=2 {
for i in 0..256 {
bus.output(ic, 1 << i, &mut delay);
delay.delay_ms(100u16);
}
}
}
}
impl Bus {
fn output(&mut self, ic: u8, data: u8, delay: &mut Delay) {
match ic {
0 => self.select(1, delay),
1 => self.select(0, delay),
2 => self.select(5, delay),
3 => self.select(1, delay),
10 => self.select(0, delay),
11 => self.select(5, delay),
_ => self.select(2, delay),
}
delay.delay_ms(10u16);
self.select_en(true);
delay.delay_ms(10u16);
self.write(data);
delay.delay_ms(10u16);
self.select_en(false);
}
fn write(&mut self, data: u8) {
self.pb0.set_state((data & 0b00000001 != 0).into()).ok();
self.pb1.set_state((data & 0b00000010 != 0).into()).ok();
self.pb2.set_state((data & 0b00000100 != 0).into()).ok();
self.pb3.set_state((data & 0b00001000 != 0).into()).ok();
self.pb4.set_state((data & 0b00010000 != 0).into()).ok();
self.pb5.set_state((data & 0b00100000 != 0).into()).ok();
self.pb6.set_state((data & 0b01000000 != 0).into()).ok();
self.pb7.set_state((data & 0b10000000 != 0).into()).ok();
}
fn select_en(&mut self, enable: bool) {
self.select_en.set_state(enable.into()).ok();
}
fn select(&mut self, line: u8, delay: &mut Delay) {
self.select_en.set_low().ok();
delay.delay_ms(10u16);
match line {
0 => {
self.pb0.set_low().ok();
self.pb1.set_low().ok();
self.pb2.set_low().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
1 => {
self.pb0.set_high().ok();
self.pb1.set_low().ok();
self.pb2.set_low().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
2 => {
self.pb0.set_low().ok();
self.pb1.set_high().ok();
self.pb2.set_low().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
3 => {
self.pb0.set_high().ok();
self.pb1.set_high().ok();
self.pb2.set_low().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
4 => {
self.pb0.set_low().ok();
self.pb1.set_low().ok();
self.pb2.set_high().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
5 => {
self.pb0.set_high().ok();
self.pb1.set_low().ok();
self.pb2.set_high().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
6 => {
self.pb0.set_low().ok();
self.pb1.set_high().ok();
self.pb2.set_high().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
7 => {
self.pb0.set_high().ok();
self.pb1.set_high().ok();
self.pb2.set_high().ok();
self.pb3.set_low().ok();
self.pb4.set_low().ok();
self.pb5.set_low().ok();
self.pb6.set_low().ok();
self.pb7.set_low().ok();
}
_ => {}
}
delay.delay_ms(10u16);
self.latch_en.set_high().ok();
delay.delay_ms(10u16);
self.latch_en.set_low().ok();
delay.delay_ms(10u16);
self.select_en.set_high().ok();
}
}