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Generate pins for new opamp pin naming scheme

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The new code implements the corresponding traits for the
common opamp pin naming scheme of all families, which
is VINPx/VINMx.

The same pin must not be used for multiple channels for the
same opamp. For example, if VINM0 and VINM1 of the same opamp
were assigned to the same pin, the channel would not be unique,
meaning that the traits would be implemented in a conflicting
manner.
This commit is contained in:
Thomas Giesel 2025-06-09 21:15:25 +02:00
parent 206a324cf4
commit cbf61765f1
2 changed files with 15 additions and 22 deletions
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4
embassy-stm32/Cargo.toml
View File

@ -81,7 +81,7 @@ futures-util = { version = "0.3.30", default-features = false }
sdio-host = "0.9.0" sdio-host = "0.9.0"
critical-section = "1.1" critical-section = "1.1"
#stm32-metapac = { version = "16" } #stm32-metapac = { version = "16" }
stm32-metapac = { git = "https://github.com/embassy-rs/stm32-data-generated", tag = "stm32-data-27ef8fba3483187e852eaf3796d827259f61e8ec" } stm32-metapac = { git = "https://github.com/embassy-rs/stm32-data-generated", tag = "stm32-data-8a502cec14512a6b833beb8f6e15f4a7b5ee7c06" }
vcell = "0.1.3" vcell = "0.1.3"
nb = "1.0.0" nb = "1.0.0"
@ -110,7 +110,7 @@ proc-macro2 = "1.0.36"
quote = "1.0.15" quote = "1.0.15"
#stm32-metapac = { version = "16", default-features = false, features = ["metadata"]} #stm32-metapac = { version = "16", default-features = false, features = ["metadata"]}
stm32-metapac = { git = "https://github.com/embassy-rs/stm32-data-generated", tag = "stm32-data-27ef8fba3483187e852eaf3796d827259f61e8ec", default-features = false, features = ["metadata"] } stm32-metapac = { git = "https://github.com/embassy-rs/stm32-data-generated", tag = "stm32-data-8a502cec14512a6b833beb8f6e15f4a7b5ee7c06", default-features = false, features = ["metadata"] }
[features] [features]
default = ["rt"] default = ["rt"]

33
embassy-stm32/build.rs
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@ -1402,31 +1402,24 @@ fn main() {
} }
if regs.kind == "opamp" { if regs.kind == "opamp" {
if pin.signal.starts_with("VP") { let peri = format_ident!("{}", p.name);
// Impl NonInvertingPin for the VP* signals (VP0, VP1, VP2, etc) let pin_name = format_ident!("{}", pin.pin);
let peri = format_ident!("{}", p.name); if let Some(ch_str) = pin.signal.strip_prefix("VINP") {
let pin_name = format_ident!("{}", pin.pin); // Impl NonInvertingPin for VINP0, VINP1 etc.
let ch: u8 = pin.signal.strip_prefix("VP").unwrap().parse().unwrap(); if let Ok(ch) = ch_str.parse::<u8>() {
g.extend(quote! {
g.extend(quote! { impl_opamp_vp_pin!( #peri, #pin_name, #ch );
impl_opamp_vp_pin!( #peri, #pin_name, #ch); });
}) }
} else if pin.signal.starts_with("VINM") { } else if let Some(ch_str) = pin.signal.strip_prefix("VINM") {
// Impl NonInvertingPin for the VINM* signals ( VINM0, VINM1, etc) // Impl InvertingPin for VINM0, VINM1 etc.
// STM32G4 if let Ok(ch) = ch_str.parse::<u8>() {
let peri = format_ident!("{}", p.name);
let pin_name = format_ident!("{}", pin.pin);
let ch: Result<u8, _> = pin.signal.strip_prefix("VINM").unwrap().parse();
if let Ok(ch) = ch {
g.extend(quote! { g.extend(quote! {
impl_opamp_vn_pin!( #peri, #pin_name, #ch); impl_opamp_vn_pin!( #peri, #pin_name, #ch);
}) });
} }
} else if pin.signal == "VOUT" { } else if pin.signal == "VOUT" {
// Impl OutputPin for the VOUT pin // Impl OutputPin for the VOUT pin
let peri = format_ident!("{}", p.name);
let pin_name = format_ident!("{}", pin.pin);
g.extend(quote! { g.extend(quote! {
impl_opamp_vout_pin!( #peri, #pin_name ); impl_opamp_vout_pin!( #peri, #pin_name );
}) })