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Add ADC support for H7

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This commit is contained in:
Matous Hybl
2022-03-19 11:05:00 +01:00
parent ac3986e40e
commit 371f3ef419
9 changed files with 694 additions and 13 deletions
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25
embassy-stm32/build.rs
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@ -145,7 +145,10 @@ fn main() {
// Generate RccPeripheral impls
for p in METADATA.peripherals {
if !singletons.contains(&p.name.to_string()) {
// generating RccPeripheral impl for H7 ADC3 would result in bad frequency
if !singletons.contains(&p.name.to_string())
|| (p.name == "ADC3" && METADATA.line.starts_with("STM32H7"))
{
continue;
}
@ -459,11 +462,23 @@ fn main() {
if regs.kind == "adc" {
let peri = format_ident!("{}", p.name);
let pin_name = format_ident!("{}", pin.pin);
let ch: u8 = pin.signal.strip_prefix("IN").unwrap().parse().unwrap();
g.extend(quote! {
impl_adc_pin!( #peri, #pin_name, #ch);
})
// H7 has differential voltage measurements
let ch: Option<u8> = if pin.signal.starts_with("INP") {
Some(pin.signal.strip_prefix("INP").unwrap().parse().unwrap())
} else if pin.signal.starts_with("INN") {
// TODO handle in the future when embassy supports differential measurements
None
} else if pin.signal.starts_with("IN") {
Some(pin.signal.strip_prefix("IN").unwrap().parse().unwrap())
} else {
None
};
if let Some(ch) = ch {
g.extend(quote! {
impl_adc_pin!( #peri, #pin_name, #ch);
})
}
}
// DAC is special