1.新建一个一个工作空间文件夹

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2.创建一个工程

2.1

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2.2

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2.3 选择 FSP 库版本、板子型号、设备（MCU）型号、编程语言、编译器

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2.4

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2.5

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2.6

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2.7

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2.8 代码生成

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2.9 代码生成结果

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2.10 通过MDK 打卡RASC配置软件

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2.11

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LED硬件信息

3.1 LED

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3.2 RASC 配置gpio

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属性说明：

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生成代码

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软件编写

软件入口函数

void hal_entry(void)

led 闪烁函数

void hal_entry(void)
{
    /* TODO: add your own code here */
	//初始化io
	R_IOPORT_Open (&g_ioport_ctrl, g_ioport.p_cfg);
	//
	while(1)
	{
		R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_LOW);
		R_BSP_SoftwareDelay(100, BSP_DELAY_UNITS_MILLISECONDS); //延时 100毫秒
		R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_HIGH);
		R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_LOW);
		R_BSP_SoftwareDelay(100, BSP_DELAY_UNITS_MILLISECONDS); //延时 100毫秒
		R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_HIGH);
		R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_15, BSP_IO_LEVEL_LOW);
		R_BSP_SoftwareDelay(100, BSP_DELAY_UNITS_MILLISECONDS); //延时 100毫秒
		R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_15, BSP_IO_LEVEL_HIGH);
	}
#if BSP_TZ_SECURE_BUILD
    /* Enter non-secure code */
    R_BSP_NonSecureEnter();
#endif
}

系统延时函数

/*


void R_BSP_SoftwareDelay (uint32_t delay, bsp_delay_units_t units)
delay:时间数量
units:时间单位
*/

可选的时间单位

```c

typedef enum
{
    BSP_DELAY_UNITS_SECONDS      = 1000000, ///< Requested delay amount is in seconds
    BSP_DELAY_UNITS_MILLISECONDS = 1000,    ///< Requested delay amount is in milliseconds
    BSP_DELAY_UNITS_MICROSECONDS = 1        ///< Requested delay amount is in microseconds
} bsp_delay_units_t;

gpio相关的函数

fsp_err_t R_IOPORT_Open(ioport_ctrl_t * const p_ctrl, const ioport_cfg_t * p_cfg);
fsp_err_t R_IOPORT_Close(ioport_ctrl_t * const p_ctrl);
fsp_err_t R_IOPORT_PinsCfg(ioport_ctrl_t * const p_ctrl, const ioport_cfg_t * p_cfg);
fsp_err_t R_IOPORT_PinCfg(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, uint32_t cfg);
fsp_err_t R_IOPORT_PinEventInputRead(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t * p_pin_event);
fsp_err_t R_IOPORT_PinEventOutputWrite(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t pin_value);
fsp_err_t R_IOPORT_PinRead(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t * p_pin_value);
fsp_err_t R_IOPORT_PinWrite(ioport_ctrl_t * const p_ctrl, bsp_io_port_pin_t pin, bsp_io_level_t level);
fsp_err_t R_IOPORT_PortDirectionSet(ioport_ctrl_t * const p_ctrl,
                                    bsp_io_port_t         port,
                                    ioport_size_t         direction_values,
                                    ioport_size_t         mask);
fsp_err_t R_IOPORT_PortEventInputRead(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port, ioport_size_t * event_data);
fsp_err_t R_IOPORT_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 R_IOPORT_PortRead(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port, ioport_size_t * p_port_value);
fsp_err_t R_IOPORT_PortWrite(ioport_ctrl_t * const p_ctrl, bsp_io_port_t port, ioport_size_t value, ioport_size_t mask);