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stm32: Run stm32h723 at 520Mhz

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Increase speed of stm32h723 chips from 400Mhz to 520Mhz.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2025-04-28 20:18:28 -04:00
parent ee79d0e307
commit 554ae78d8c
2 changed files with 4 additions and 2 deletions
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3
src/stm32/Kconfig
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@ -208,7 +208,8 @@ config CLOCK_FREQ
default 64000000 if MACH_STM32G0
default 150000000 if MACH_STM32G431
default 170000000 if MACH_STM32G474
default 400000000 if MACH_STM32H7 # 400Mhz is max Klipper currently supports
default 520000000 if MACH_STM32H723
default 400000000 if MACH_STM32H743 || MACH_STM32H750
default 80000000 if MACH_STM32L412
default 64000000 if MACH_N32G45x && STM32_CLOCK_REF_INTERNAL
default 128000000 if MACH_N32G45x

3
src/stm32/stm32h7_adc.c
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@ -161,7 +161,8 @@ static const uint8_t adc_pins[] = {
#define ADC_ATICKS 0b110
#define ADC_ATICKS_H723_ADC3 0b111
// 400Mhz stm32h7: clock=25Mhz, Tsamp=387.5, Tconv=394, total=15.76us
// 400Mhz stm32h723 adc3: clock=50Mhz, Tsamp=640.5, Tconv=653, total=13.06us
// 520Mhz stm32h723: clock=32.5Mhz, Tsamp=387.5, Tconv=394, total=12.12us
// 520Mhz stm32h723 adc3: clock=65Mhz, Tsamp=640.5, Tconv=653, total=10.05us
// 80Mhz stm32l4: clock=20Mhz, Tsamp=247.5, Tconv=260, total=13.0us
// 150Mhz stm32g4: clock=37.5Mhz, Tsamp=247.5, Tconv=260, total=6.933us