HC32L110的LPUART开启后睡眠功耗很高，麻烦大神帮忙看看配置..

只看该作者 · 2020-4-7 18:26

关于华大HC32L110的LPUART配置，参考手册上说可以在低功耗模式下工作，我这边打开串口后睡眠一直很高大概100ua，但是屏蔽串口初始化就可以达到7ua左右，不知道串口配置这边有什么问题？

/***********************************Lpuart_config************************/
//RX
#define LUART_RX_PORT    2
#define LUART_RX_PIN       5
#define LUART_RX_MODE    GpioDirOut
#define LUART_RX_PULLUP    TRUE
#define LUART_RX_PULLDOWN FALSE
#define LUART_RX_ODR       FALSE
#define LUART_RX_DRIVER    FALSE

//Luart_clk_config
#define LUART_RX_SCLK_SEL    LPUart_Rcl    //LPUart_Rcl  LPUart_Pclk
#define LUART_RX_SCLK_DIV    LPUartDiv1

//Luart_mode_config       //LPUartLPMode  LPUartNoLPMode
#define LUART_RX_MODE_LP    LPUartLPMode    //低功耗模式(说明默认配置串口波特率:9600(由时钟决定的不可改变))
#define LUART_RXMODE          LPUartMode1    //带奇偶校验功能（MODE1是不带奇偶检验功能）

//tx
#define LUART_TX_PORT    2
#define LUART_TX_PIN       6
#define LUART_TX_MODE    GpioDirOut
#define LUART_TX_PULLUP    TRUE
#define LUART_TX_PULLDOWN FALSE
#define LUART_TX_ODR       FALSE
#define LUART_TX_DRIVER    FALSE

//Luart_clk_config
//#define LUART_TX_SCLK_SEL    LPUart_Pclk
//#define LUART_TX_SCLK_DIV    LPUartDiv1

//Luart_mode_config
//#define LUART_TX_MODE_LP    LPUartNoLPMode //低功耗模式(说明默认配置串口波特率:9600(由时钟决定的不可改变))
//#define LUART_TXMODE       LPUartMode3    //带奇偶校验功能（MODE1是不带奇偶检验功能）

#define LUART_BAUD       9600
/***********************************************************************/

void lpuart_pwr_on(void)
{

uint16_t u16timer;
uint32_t u32sclk;

stc_lpuart_config_t  stcConfig;
stc_lpuart_irq_cb_t  stcLPUartIrqCb;
stc_lpuart_multimode_t  stcMulti;
stc_lpuart_sclk_sel_t  stcLpuart_clk;
stc_lpuart_mode_t  stcRunMode;
stc_lpuart_baud_config_t  stcBaud;
stc_bt_config_t  stcBtConfig;

DDL_ZERO_STRUCT(stcConfig);
DDL_ZERO_STRUCT(stcLPUartIrqCb);
DDL_ZERO_STRUCT(stcMulti);
DDL_ZERO_STRUCT(stcLpuart_clk);
DDL_ZERO_STRUCT(stcRunMode);
DDL_ZERO_STRUCT(stcBaud);
DDL_ZERO_STRUCT(stcBtConfig);

//(1)open peripheral clk
Clk_SetPeripheralGate(ClkPeripheralLpUart,TRUE);
Clk_SetPeripheralGate(ClkPeripheralBt,TRUE);

//(2)set IO
Gpio_InitIOExt(LUART_RX_PORT,LUART_RX_PIN,LUART_RX_MODE,LUART_RX_PULLUP,LUART_RX_PULLDOWN,LUART_RX_ODR,LUART_RX_DRIVER);
Gpio_InitIOExt(LUART_TX_PORT,LUART_TX_PIN,LUART_TX_MODE,LUART_TX_PULLUP,LUART_TX_PULLDOWN,LUART_TX_ODR,LUART_TX_DRIVER);

Gpio_SetFunc_UART2RX_P25();
Gpio_SetFunc_UART2TX_P26();

//(3)clk config
stcLpuart_clk.enSclk_Prs = LUART_RX_SCLK_DIV;
stcLpuart_clk.enSclk_sel = LUART_RX_SCLK_SEL;
stcConfig.pstcLpuart_clk = &stcLpuart_clk;

//(4)mode config
stcRunMode.enLpMode = LUART_RX_MODE_LP;
stcRunMode.enMode = LUART_RXMODE;
stcConfig.pstcRunMode = &stcRunMode;

//(5)interrupt function
stcLPUartIrqCb.pfnRxIrqCb = RxIntCallback;
stcLPUartIrqCb.pfnTxIrqCb = NULL;
stcLPUartIrqCb.pfnRxErrIrqCb = NULL;
stcConfig.pstcIrqCb = &stcLPUartIrqCb;
stcConfig.bTouchNvic = TRUE;

//(6)正常模式
stcMulti.enMulti_mode = LPUartNormal;
stcConfig.pstcMultiMode = &stcMulti;


LPUart_EnableFunc(LPUartRx);
   M0P_LPUART->ISR_f.RI = 0;

LPUart_EnableIrq(LPUartRxIrq);
LPUart_Init(&stcConfig);

  //(1)
  if(LPUart_Pclk == stcLpuart_clk.enSclk_sel)
   u32sclk = Clk_GetPClkFreq();
  else if(LPUart_Rcl == stcLpuart_clk.enSclk_sel)
   u32sclk = 38400;
  else
   u32sclk = 32768;

  stcBaud.u32Baud = LUART_BAUD;
  stcBaud.bDbaud = 0;
  stcBaud.u8LpMode = LUART_RX_MODE_LP;
  stcBaud.u8Mode = LUART_RXMODE;

  LPUart_EnableIrq(LPUartRxIrq);
LPUart_EnableFunc(LPUartRx);

  u16timer = LPUart_SetBaudRate(u32sclk,stcLpuart_clk.enSclk_Prs,&stcBaud);
  stcBtConfig.enMD = BtMode2;
  stcBtConfig.enCT = BtTimer;
  stcBtConfig.enTog = BtTogEnable;
  Bt_Init(TIM2, &stcBtConfig);
  Bt_ARRSet(TIM2,u16timer);
  Bt_Cnt16Set(TIM2,u16timer);
  Bt_Run(TIM2);

}

我这边main函数是：
int main(void)
{
  delay1ms(3000);    //延时避免睡眠无法烧录。
  Allgpio_Init();
  Led_init_task();
  key_init_task();
  lpuart_pwr_on();

while(1)
{
keyL_scan();
Real_exe();
Mcu_Sleep();

}
}

只看该作者 · 2020-4-8 08:49

华大代理 qq:57863859