文章目录
GPIO输入输出
RASC图形化配置
输出模式：
输入模式：
配置选项：
| 配置项 | 取值/描述 |
|---|---|
| Mode | l "Input mode"（输入模式）l "Output mode(Initial Low)"（输出模式，初始电平为低）l "Output mode(Initial High)"（输出模式，初始电平为高） |
| Pull up（上拉电阻） | l "None"（禁止内部上拉）l "input pull-up"（使能内部上拉）当引脚被配置为Output mode时无法设置Pull up参数 |
| IRQ（中断） | l "None"（不使用中断）l "IRQ10"（使用中断） |
| Output type（输出类型） | l "CMOS"l "n-ch open drain"（开漏）当引脚被配置为Input mode时无法设置本参数 |
| Symbolic Name | #define LED (BSP_IO_PORT_04_PIN_00) |
接口函数
API详解\]([第5章 GPIO输入输出 \| 百问网 (100ask.net)](https://renesas-docs.100ask.net/zh/DShanMCU_RA6M5/object_oriented_module_programming_method_in_ARM_embedded_system/chapter5.html#_5-2-4-api%E6%8E%A5%E5%8F%A3%E7%94%A8%E6%B3%95)) ```c fsp_err_t (* open)(ioport_ctrl_t * const p_ctrl, const ioport_cfg_t * p_cfg); fsp_err_t (* close)(ioport_ctrl_t * const p_ctrl); fsp_err_t (* pinsCfg)(ioport_ctrl_t * const p_ctrl, const ioport_cfg_t * p_cfg); fsp_err_t (* pinCfg)(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, uint32_t cfg); fsp_err_t (* pinEventInputRead)(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t * p_pin_event); fsp_err_t (* pinEventOutputWrite)(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin,bsp_io_level_t pin_value); fsp_err_t (* pinRead)(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t * p_pin_value); fsp_err_t (* pinWrite)(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t level); fsp_err_t (* portDirectionSet)(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port,ioport_size_t direction_values, ioport_size_t mask); fsp_err_t (* portEventInputRead)(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port, ioport_size_t * p_event_data); fsp_err_t (* portEventOutputWrite)(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port,ioport_size_t event_data,ioport_size_t mask_value); fsp_err_t (* portRead)(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port,ioport_size_t * p_port_value); fsp_err_t (* portWrite)(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port,ioport_size_t value, ioport_size_t mask); ``` ### 实例代码： ```c /* in hal_entry() */ bsp_io_level_t level; while(1) { /* 读按键状态 */ g_ioport.p_api->pinRead(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_00, &level); /* 根据按键状态设置LED */ g_ioport.p_api->pinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_00, level); } ```