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Use correct frequencies for timers

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This commit is contained in:
Ulf Lilleengen
2021-06-15 16:07:23 +02:00
parent ceb5d92da3
commit 49fad2de8a
7 changed files with 49 additions and 30 deletions
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14
embassy-stm32/src/rcc/f4/mod.rs
View File

@ -167,23 +167,23 @@ impl RccExt for RCC {
}
};
let apb1_freq = match cfgr.apb1_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb1_freq, apb1_tim_freq) = match cfgr.apb1_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: Ppre = pre.into();
let pre: u8 = 1 << (pre.0 - 3);
let freq = ahb_freq / pre as u32;
freq
(freq, freq * 2)
}
};
let apb2_freq = match cfgr.apb2_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb2_freq, apb2_tim_freq) = match cfgr.apb2_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: Ppre = pre.into();
let pre: u8 = 1 << (pre.0 - 3);
let freq = ahb_freq / (1 << (pre as u8 - 3));
freq
(freq, freq * 2)
}
};
@ -194,6 +194,8 @@ impl RccExt for RCC {
ahb3: ahb_freq.hz(),
apb1: apb1_freq.hz(),
apb2: apb2_freq.hz(),
apb1_tim: apb1_tim_freq.hz(),
apb2_tim: apb2_tim_freq.hz(),
}
}
}

2
embassy-stm32/src/rcc/h7/mod.rs
View File

@ -535,5 +535,7 @@ pub unsafe fn init(config: Config) {
apb1: core_clocks.pclk1,
apb2: core_clocks.pclk2,
apb4: core_clocks.pclk4,
apb1_tim: core_clocks.timx_ker_ck.unwrap_or(core_clocks.pclk1),
apb2_tim: core_clocks.timy_ker_ck.unwrap_or(core_clocks.pclk2),
});
}

14
embassy-stm32/src/rcc/l0/mod.rs
View File

@ -353,23 +353,23 @@ impl RccExt for RCC {
}
};
let apb1_freq = match cfgr.apb1_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb1_freq, apb1_tim_freq) = match cfgr.apb1_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: Ppre = pre.into();
let pre: u8 = 1 << (pre.0 - 3);
let freq = ahb_freq / pre as u32;
freq
(freq, freq * 2)
}
};
let apb2_freq = match cfgr.apb2_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb2_freq, apb2_tim_freq) = match cfgr.apb2_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: Ppre = pre.into();
let pre: u8 = 1 << (pre.0 - 3);
let freq = ahb_freq / (1 << (pre as u8 - 3));
freq
(freq, freq * 2)
}
};
@ -378,6 +378,8 @@ impl RccExt for RCC {
ahb: ahb_freq.hz(),
apb1: apb1_freq.hz(),
apb2: apb2_freq.hz(),
apb1_tim: apb1_tim_freq.hz(),
apb2_tim: apb2_tim_freq.hz(),
}
}
}

14
embassy-stm32/src/rcc/l4/mod.rs
View File

@ -166,23 +166,23 @@ impl RccExt for RCC {
}
};
let apb1_freq = match cfgr.apb1_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb1_freq, apb1_tim_freq) = match cfgr.apb1_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: u8 = pre.into();
let pre: u8 = 1 << (pre - 3);
let freq = ahb_freq / pre as u32;
freq
(freq, freq * 2)
}
};
let apb2_freq = match cfgr.apb2_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb2_freq, apb2_tim_freq) = match cfgr.apb2_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: u8 = pre.into();
let pre: u8 = 1 << (pre - 3);
let freq = ahb_freq / (1 << (pre as u8 - 3));
freq
(freq, freq * 2)
}
};
@ -193,6 +193,8 @@ impl RccExt for RCC {
ahb3: ahb_freq.hz(),
apb1: apb1_freq.hz(),
apb2: apb2_freq.hz(),
apb1_tim: apb1_tim_freq.hz(),
apb2_tim: apb2_tim_freq.hz(),
}
}
}

2
embassy-stm32/src/rcc/mod.rs
View File

@ -10,6 +10,8 @@ pub struct Clocks {
pub sys: Hertz,
pub apb1: Hertz,
pub apb2: Hertz,
pub apb1_tim: Hertz,
pub apb2_tim: Hertz,
#[cfg(any(rcc_l0))]
pub ahb: Hertz,

22
embassy-stm32/src/rcc/wb55/mod.rs
View File

@ -166,23 +166,23 @@ impl RccExt for RCC {
}
};
let apb1_freq = match cfgr.apb1_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb1_freq, apb1_tim_freq) = match cfgr.apb1_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: u8 = pre.into();
let pre: u8 = 1 << (pre - 3);
let pre: Ppre = pre.into();
let pre: u8 = 1 << (pre.0 - 3);
let freq = ahb_freq / pre as u32;
freq
(freq, freq * 2)
}
};
let apb2_freq = match cfgr.apb2_pre {
APBPrescaler::NotDivided => ahb_freq,
let (apb2_freq, apb2_tim_freq) = match cfgr.apb2_pre {
APBPrescaler::NotDivided => (ahb_freq, ahb_freq),
pre => {
let pre: u8 = pre.into();
let pre: u8 = 1 << (pre - 3);
let pre: Ppre = pre.into();
let pre: u8 = 1 << (pre.0 - 3);
let freq = ahb_freq / (1 << (pre as u8 - 3));
freq
(freq, freq * 2)
}
};
@ -193,6 +193,8 @@ impl RccExt for RCC {
ahb3: ahb_freq.hz(),
apb1: apb1_freq.hz(),
apb2: apb2_freq.hz(),
apb1_tim: apb1_tim_freq.hz(),
apb2_tim: apb2_tim_freq.hz(),
}
}
}