S32K148_ProcessorExpert之Blink

流程

本文先建立一个新的空工程, 然后使用ProcessorExpert配置生成初始化代码, 最后拖拽函数, 填写参数, 补全代码, 点灯.

先来看一下S32K148EVB板上LED的原理图:

新建工程

ProcessorExpert配置

如上图, 重命名PTE21/22/23为 LED_RED, LED_GREEN, LED_BLUE, 并设置LED_RED初始电平为高(亮).

点击生成代码:

拖动补全代码

GPIO函数

时钟那部分我们先不管, 看一下引脚函数的定义:

/*FUNCTION**********************************************************************
 *
 * Function Name : PINS_DRV_SetPins
 * Description   : This function configures output pins listed in parameter pins (bits that are
 * '1') to have a value of 'set' (HIGH). Pins corresponding to '0' will be
 * unaffected.
 *
 * Implements    : PINS_DRV_SetPins_Activity
 *END**************************************************************************/
void PINS_DRV_SetPins(GPIO_Type * const base,
                      pins_channel_type_t pins)
{
    PINS_GPIO_SetPins(base, pins);
}


/*FUNCTION**********************************************************************
 *
 * Function Name : PINS_DRV_ClearPins
 * Description   : This function configures output pins listed in parameter pins (bits that are
 * '1') to have a 'cleared' value (LOW). Pins corresponding to '0' will be
 * unaffected.
 *
 * Implements    : PINS_DRV_ClearPins_Activity
 *END**************************************************************************/
void PINS_DRV_ClearPins(GPIO_Type * const base,
                        pins_channel_type_t pins)
{
    PINS_GPIO_ClearPins(base, pins);
}


/*FUNCTION**********************************************************************
 *
 * Function Name : PINS_DRV_TogglePins
 * Description   : This function toggles output pins listed in parameter pins (bits that are
 * '1'). Pins corresponding to '0' will be unaffected.
 *
 * Implements    : PINS_DRV_TogglePins_Activity
 *END**************************************************************************/
void PINS_DRV_TogglePins(GPIO_Type * const base,
                         pins_channel_type_t pins)
{
    PINS_GPIO_TogglePins(base, pins);
}

相应的操作就简单了:

PINS_DRV_SetPins(LED_RED_PORT, 1 << LED_RED_PIN);		//红灯亮
PINS_DRV_ClearPins(LED_GREEN_PORT, 1 << LED_GREEN_PIN);	//绿灯灭
PINS_DRV_ClearPins(LED_BLUE_PORT, 1 << LED_BLUE_PIN);	//蓝灯灭

调试运行

然后就可以看到板子上的灯 红/绿/蓝 切换亮了.

工程下载

https://download.csdn.net/download/weifengdq/11803706