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nrf/twim: make pullup configurable, do not enable it by default.

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This commit is contained in:
Dario Nieuwenhuis 2021-05-26 18:15:05 +02:00
parent b449f6de9d
commit 8dfb6dff86
1 changed files with 10 additions and 2 deletions
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12
embassy-nrf/src/twim.rs
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@ -30,12 +30,16 @@ pub enum Frequency {
#[non_exhaustive] #[non_exhaustive]
pub struct Config { pub struct Config {
pub frequency: Frequency, pub frequency: Frequency,
pub sda_pullup: bool,
pub scl_pullup: bool,
} }
impl Default for Config { impl Default for Config {
fn default() -> Self { fn default() -> Self {
Self { Self {
frequency: Frequency::K100, frequency: Frequency::K100,
sda_pullup: false,
scl_pullup: false,
} }
} }
} }
@ -61,15 +65,19 @@ impl<'d, T: Instance> Twim<'d, T> {
sda.conf().write(|w| { sda.conf().write(|w| {
w.dir().input(); w.dir().input();
w.input().connect(); w.input().connect();
w.pull().pullup();
w.drive().s0d1(); w.drive().s0d1();
if config.sda_pullup {
w.pull().pullup();
}
w w
}); });
scl.conf().write(|w| { scl.conf().write(|w| {
w.dir().input(); w.dir().input();
w.input().connect(); w.input().connect();
w.pull().pullup();
w.drive().s0d1(); w.drive().s0d1();
if config.scl_pullup {
w.pull().pullup();
}
w w
}); });