BSP_IO_Init() function

Initializes and configures the IO functionalities and configures all necessary hardware resources (GPIOs, clocks..).

Syntax

from stm32469i_eval_io.h:108

uint8_t BSP_IO_Init(void);

Implemented in stm32469i_eval_io.c:119

Return value

IO_OK if all initializations are OK. Other value if error.

Notes

BSP_IO_Init() is using HAL_Delay() function to ensure that MFXSTM32L152 IO Expander is correctly reset. HAL_Delay() function provides accurate delay (in milliseconds) based on variable incremented in SysTick ISR. This implies that if BSP_IO_Init() is called from a peripheral ISR process, then the SysTick interrupt must have higher priority (numerically lower) than the peripheral interrupt. Otherwise the caller ISR process will be blocked.

Examples

BSP_IO_Init() is referenced by 30 libraries and example projects.

References

Location	Referrer	Text
stm32469i_eval_io.c:119		uint8_t BSP_IO_Init(void)
stm32469i_eval_io.h:108		uint8_t BSP_IO_Init(void);
stm32469i_eval.c:518	BSP_JOY_Init()	ret = BSP_IO_Init();
stm32469i_eval_camera.c:179	BSP_CAMERA_Init()	BSP_IO_Init();
stm32469i_eval_sd.c:141	BSP_SD_Init()	BSP_IO_Init();
stm32469i_eval_ts.c:213	BSP_TS_ITConfig()	io_status = BSP_IO_Init();