嵌入式实操----基于RT1170 首板硬件之tempsensor温度传感器调试(二十一)

本文主要是通过迁移的思维,记录本人初次使用NXP MCUXpresso SDK API进行BSP开发

本文主要是描述整合tempsensor模块接口,供应用开发人员使用。这当中有一个重要的功能,就是CPU的结温达到设置的阈值时,CPU主动复位,本文的阈值的110度。

1. 首先阅读原理图

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2. 调试过程

2. 1 tempsensor初始化

/*----------------------------------------------*
 * macros                                       *
 *----------------------------------------------*/
#define DEMO_TMPSNS TMPSNS

#define DEMO_LOWALARMTEMP 0U

#define DEMO_HIGHALARMTEMP 70

#define DEMO_PINICALARMTEMP 110U
/**
 * @brief tempsensor init
 *
 * @param [in] void  
 * @param [out] None
 * 
 * @return 
 * 
 * @history
 * 1.Date         : 2021-5-28 14:7:9
 *   Author       : panzidong
 *   Modification : Created function
 */
void bsp_tempsensor_init(void)
{
    
    
    tmpsns_config_t config;

    TMPSNS_GetDefaultConfig(&config);
    config.measureMode   = kTEMPSENSOR_ContinuousMode;
    config.frequency     = 0x03U;
	  /*设置MCU高温警告阈值*/
    config.highAlarmTemp = DEMO_HIGHALARMTEMP;
    /*设置MCU低温警告阈值*/
	  config.lowAlarmTemp =  DEMO_LOWALARMTEMP;
	  /*设置MCU 复位警告阈值*/
	  config.panicAlarmTemp = DEMO_PINICALARMTEMP;
	
    TMPSNS_Init(DEMO_TMPSNS, &config);

    TMPSNS_StartMeasure(DEMO_TMPSNS);	
}

2. 2 tempsensor值获取

**
 * @brief print mcu tempsensor info
 *
 * @param [in] void  
 * @param [out] None
 * 
 * @return 
 * 
 * @history
 * 1.Date         : 2021-5-28 14:11:18
 *   Author       : panzidong
 *   Modification : Created function
 */
void bsp_dump_tempsensor(void){
    
    

    float temperature = 0U;

    /* Get temperature */
    temperature = TMPSNS_GetCurrentTemperature(DEMO_TMPSNS);

    PRINTF("temperature is %f celsius degree \r\n", temperature);
    
    SDK_DelayAtLeastUs(1000*1000,  SystemCoreClock);			
    /* Get current temperature */
    temperature = TMPSNS_GetCurrentTemperature(DEMO_TMPSNS);

    PRINTF("temperature is %f celsius degree. \r\n", temperature);
}

3. 总结

NA

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转载自blog.csdn.net/weixin_30965175/article/details/119250854
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