From 71179fa818f5ef8578f3b0f73791831821119893 Mon Sep 17 00:00:00 2001 From: Dominic Date: Sat, 9 Mar 2024 11:49:23 +0100 Subject: [PATCH] Check for CPU_FREQ_BOOST --- embassy-stm32/src/rcc/h.rs | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/embassy-stm32/src/rcc/h.rs b/embassy-stm32/src/rcc/h.rs index 9251df162..1949fc891 100644 --- a/embassy-stm32/src/rcc/h.rs +++ b/embassy-stm32/src/rcc/h.rs @@ -455,7 +455,14 @@ pub(crate) unsafe fn init(config: Config) { }; #[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::Scale0 => { + let d1cpre_clk_max = if pac::SYSCFG.ur18().read().cpu_freq_boost() { + 550_000_000 + } else { + 520_000_000 + }; + (Hertz(d1cpre_clk_max), 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)),