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Yuuki NAGAO de8035b510 stm32/adc: Fix ADC clock prescaler for G4 MCUs. 
For STM32G4, ADC clock frequency should be equal or less than 60MHz.
To satisfy this specification, ADC clock prescaler should be equal or
greater than 4 (For example, NUCLEO_G474RE runs 170MHz).

In addition, to obtain accurate internal channel value,
the ADC clock prescaler is set to 16 because vbat needs at least 12us
(16/170*247.5=23.3us).

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
2023-07-13 12:39:01 +10:00
..
bare-arm bare-arm/mpconfigport.h: Disable remaining optional features. 2021-11-01 14:23:06 +11:00
cc3200 all: Use MP_REGISTER_EXTENSIBLE_MODULE for overrideable built-ins. 2023-06-08 17:54:21 +10:00
embed all: Rename *umodule*.c to remove the "u" prefix. 2023-06-08 17:54:17 +10:00
esp32 esp32/network_wlan: Wait for STA/AP START/STOP event in wlan.active. 2023-07-13 11:49:14 +10:00
esp8266 extmod/asyncio: Rename uasyncio to asyncio. 2023-06-19 17:33:03 +10:00
mimxrt ports: In machine_i2s.c, rename uasyncio to asyncio. 2023-06-19 18:36:54 +10:00
minimal all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
nrf extmod/asyncio: Rename uasyncio to asyncio. 2023-06-19 17:33:03 +10:00
pic16bit ports: Implement simple write polling for stdout. 2023-03-23 13:51:17 +11:00
powerpc all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
qemu-arm py/mkrules.mk: Automatically configure frozen options when manifest set. 2023-06-08 23:12:56 +10:00
renesas-ra renesas-ra/boards/VK_RA6M5: Add new board definition. 2023-06-27 12:35:39 +10:00
rp2 ports: In machine_i2s.c, rename uasyncio to asyncio. 2023-06-19 18:36:54 +10:00
samd samd/mpconfigport: Provide the platform module. 2023-06-27 14:58:44 +10:00
stm32 stm32/adc: Fix ADC clock prescaler for G4 MCUs. 2023-07-13 12:39:01 +10:00
teensy ports: Standardise docs link in help text. 2023-06-02 11:48:46 +10:00
unix extmod/asyncio: Rename uasyncio to asyncio. 2023-06-19 17:33:03 +10:00
webassembly webassembly: Make mp_js_process_char asynchronous. 2023-06-27 15:27:29 +10:00
windows extmod/asyncio: Rename uasyncio to asyncio. 2023-06-19 17:33:03 +10:00
zephyr py/mkrules.mk: Automatically configure frozen options when manifest set. 2023-06-08 23:12:56 +10:00