| # STM32 CAN configuration options |
| |
| # Copyright (c) 2020 Alexander Wachter |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| DT_COMPAT_STM32_FDCAN := st,stm32-fdcan |
| |
| config CAN_STM32FD |
| bool "STM32 FDCAN driver" |
| default $(dt_compat_enabled,$(DT_COMPAT_STM32_FDCAN)) |
| select CAN_MCAN |
| select USE_STM32_LL_RCC |
| |
| if CAN_STM32FD |
| |
| config CAN_MAX_STD_ID_FILTER |
| int "Maximum number of std ID filters" |
| default 28 |
| range 0 28 |
| help |
| Defines the maximum number of filters with standard ID (11-bit) |
| that can be attached. |
| |
| config CAN_MAX_EXT_ID_FILTER |
| int "Maximum number of ext ID filters" |
| default 8 |
| range 0 8 |
| help |
| Defines the maximum number of filters with extended ID (29-bit) |
| that can be attached. |
| |
| choice CAN_STM32FD_CLOCK_SOURCE |
| prompt "CAN clock source" |
| default CAN_STM32FD_CLOCK_SOURCE_HSE |
| help |
| CAN clock source selection. |
| |
| config CAN_STM32FD_CLOCK_SOURCE_HSE |
| bool "HSE" |
| help |
| HSE clock used as FDCAN clock source. |
| |
| config CAN_STM32FD_CLOCK_SOURCE_PLL |
| bool "PLL" |
| depends on !SOC_SERIES_STM32U5X |
| help |
| PLL "Q" clock used ad FDCAN clock source. |
| |
| config CAN_STM32FD_CLOCK_SOURCE_PCLK1 |
| bool "PCLK1" |
| depends on !SOC_SERIES_STM32U5X |
| help |
| PCLK1 clock used ad FDCAN clock source. |
| |
| config CAN_STM32FD_CLOCK_SOURCE_PLL1Q |
| bool "PLL1Q" |
| depends on SOC_SERIES_STM32U5X |
| help |
| PLL1 "Q" clock used as FDCAN clock source. |
| |
| config CAN_STM32FD_CLOCK_SOURCE_PLL2P |
| bool "PLL2P" |
| depends on SOC_SERIES_STM32U5X |
| help |
| PLL2 "P" clock used as FDCAN clock source. |
| |
| endchoice |
| |
| config CAN_STM32FD_CLOCK_DIVISOR |
| int "CAN clock divisor" |
| depends on CAN_STM32FD_CLOCK_SOURCE_PCLK1 |
| range 1 30 |
| default 1 |
| help |
| The APB clock is divided by this value (stored in CKDIV register) |
| before it is fed to the CAN core. |
| Note that the the divisor affects all CAN controllers. |
| Allowed values: 1 or 2 * n, where n <= 15. |
| |
| endif # CAN_STM32FD |
