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CONFIG_I2S_STM32_PLLI2S_PLLM¶
Division factor for PLLI2S VCO input clock
Type: int
Help¶
Division factor for the audio PLL (PLLI2S) VCO input clock. PLLM factor should be selected to ensure that the VCO input frequency ranges from 1 to 2 MHz. It is recommended to select a frequency of 2 MHz to limit PLL jitter. Allowed values: 2-63
Direct dependencies¶
(I2S && BOARD_96B_ARGONKEY) || (I2S_STM32_USE_PLLI2S_ENABLE && I2S_STM32 && I2S)
(Includes any dependencies from if’s and menus.)
Defaults¶
- 8 if
I2S&&BOARD_96B_ARGONKEY - 8 if
I2S_STM32_USE_PLLI2S_ENABLE&&I2S_STM32&&I2S
Kconfig definitions¶
At boards/arm/96b_argonkey/Kconfig.defconfig:58
Included via Kconfig:10 → Kconfig.zephyr:21
Menu path: (top menu)
config I2S_STM32_PLLI2S_PLLM
int
default 8 if I2S && BOARD_96B_ARGONKEY
depends on I2S && BOARD_96B_ARGONKEY
At drivers/i2s/Kconfig.stm32:32
Included via Kconfig:10 → Kconfig.zephyr:35 → drivers/Kconfig:40 → drivers/i2s/Kconfig:29
Menu path: (top menu) → Device Drivers → I2S bus drivers → STM32 MCU I2S controller driver
config I2S_STM32_PLLI2S_PLLM
int
prompt "Division factor for PLLI2S VCO input clock" if I2S_STM32_USE_PLLI2S_ENABLE && I2S_STM32 && I2S
range 2 63 if I2S_STM32_USE_PLLI2S_ENABLE && I2S_STM32 && I2S
default 8 if I2S_STM32_USE_PLLI2S_ENABLE && I2S_STM32 && I2S
depends on I2S_STM32_USE_PLLI2S_ENABLE && I2S_STM32 && I2S
help
Division factor for the audio PLL (PLLI2S) VCO input clock.
PLLM factor should be selected to ensure that the VCO
input frequency ranges from 1 to 2 MHz. It is recommended
to select a frequency of 2 MHz to limit PLL jitter.
Allowed values: 2-63
(Definitions include propagated dependencies, including from if’s and menus.)