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STM32H7: adjust frequency limits for series in RM0468

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This commit is contained in:
Oliver Rockstedt 2023-12-15 12:22:17 +01:00
parent e5e85ba02b
commit a8d0da91dc
1 changed files with 8 additions and 1 deletions
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9
embassy-stm32/src/rcc/h.rs
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@ -478,7 +478,14 @@ pub(crate) unsafe fn init(config: Config) {
VoltageScale::Scale2 => (Hertz(160_000_000), Hertz(160_000_000), Hertz(80_000_000)), VoltageScale::Scale2 => (Hertz(160_000_000), Hertz(160_000_000), Hertz(80_000_000)),
VoltageScale::Scale3 => (Hertz(88_000_000), Hertz(88_000_000), Hertz(44_000_000)), VoltageScale::Scale3 => (Hertz(88_000_000), Hertz(88_000_000), Hertz(44_000_000)),
}; };
#[cfg(all(stm32h7, not(pwr_h7rm0455)))] #[cfg(pwr_h7rm0468)]
let (d1cpre_clk_max, hclk_max, pclk_max) = match config.voltage_scale {
VoltageScale::Scale0 => (Hertz(550_000_000), Hertz(275_000_000), Hertz(137_500_000)),
VoltageScale::Scale1 => (Hertz(400_000_000), Hertz(200_000_000), Hertz(100_000_000)),
VoltageScale::Scale2 => (Hertz(300_000_000), Hertz(150_000_000), Hertz(75_000_000)),
VoltageScale::Scale3 => (Hertz(170_000_000), Hertz(85_000_000), Hertz(42_500_000)),
};
#[cfg(all(stm32h7, not(any(pwr_h7rm0455, pwr_h7rm0468))))]
let (d1cpre_clk_max, hclk_max, pclk_max) = match config.voltage_scale { let (d1cpre_clk_max, hclk_max, pclk_max) = match config.voltage_scale {
VoltageScale::Scale0 => (Hertz(480_000_000), Hertz(240_000_000), Hertz(120_000_000)), VoltageScale::Scale0 => (Hertz(480_000_000), Hertz(240_000_000), Hertz(120_000_000)),
VoltageScale::Scale1 => (Hertz(400_000_000), Hertz(200_000_000), Hertz(100_000_000)), VoltageScale::Scale1 => (Hertz(400_000_000), Hertz(200_000_000), Hertz(100_000_000)),