main.c

Analog 公司 ADE7169 SOC 电表方案DEMO程序

/*
-05/10/2006: Petre M.
  -this project represents a Reference Design for a power meter using ADE7169Fxx
*/


#include "main.h"

#pragma vector=0x03
__interrupt void INT0_ISR(void)
{
}

#pragma vector=0x0b
__interrupt void TIMER0_ISR(void)
{
}

#pragma vector=0x13
__interrupt void INT1_ISR(void)
{
}

#pragma vector=0x1b
__interrupt void TIMER1_ISR(void)
{
}

#pragma vector=0x23
__interrupt void UART_ISR(void)
{
}

#pragma vector=0x2b
__interrupt void TIMER2_ISR(void)
{
}

#pragma vector=0x33
__interrupt void TEMPERATURE_ISR(void)
{
}

#pragma vector=0x3b
__interrupt void SPI_I2C_ISR(void)
{
}

#pragma vector=0x43
__interrupt void PSM_ISR(void)
{
}

#pragma vector=0x4b
__interrupt void ADE_ISR(void)
{
  ADE_Interrupt();
}

#pragma vector=0x53
__interrupt void RTC_ISR(void)
{
  //this bit is toggled in order to create a 1sec CF2 output.
  P0_bit.CF2 = P0_bit.CF2 ^ 1;

}

#pragma vector=0x5b
__interrupt void WATCHDOG_ISR(void)
{
}

void main( void )
{
  void (* LP_func_ptr)(void);

  //if reset provoked by watchdog, turn the display full on and blink it
  Test_Watchdog();

  //Initializations common to both PSM0 and PSM1 modes

  //disable all interrupt sources before doing the initializations
  IE_bit.EA = 0;

  Setup_Watchdog(WD_1sec);//sets PRE=6 -> 1sec for watchdog period

  Setup_I2C();

  //LCD SFRs are initialized and the display is erased
  Setup_LCD();

  Setup_Power();

  Init_variables();

  //if VSW=VDD, then the part functions in PSM0 mode
  if (PERIPH_bit.VSWSOURCE) {
    //put PSM0 initializations here

    Setup_UART();

    Init_variables_PSM0();//initializes some of the variables to avoid having the compiler doing it

    //enable all interrupt sources
    IE_bit.EA = 1;

    Setup_RTC();

    //we need to initialize all the ADE registers. Some of them use values from EEPROM
    Setup_Energy();

    //read from EEPROM all data previously stored in EEPROM
    //The program waits until the data is stored in IRAM!!!!
    Reload_from_EEPROM();
  }
  //else, VSW=VBAT, so we were in PSM2 mode (deep sleep) and
  //we have been awaken and are now in PSM1 mode
  else {

    Setup_RTC_PSM1();

    //in PSM1 mode, blink the LCD at 0.25Hz
    Blink_LCD(Blink_250mHz);

    Init_variables_PSM1();

    //enable all interrupt sources only after all variables have been initialized
    IE_bit.EA = 1;

  }

  //if VSW=VDD, then the part functions in PSM0 mode
  //This is the PSM0 loop
  while (PERIPH_bit.VSWSOURCE) {
    //put all High Priority tasks here
    Backup_State();//this function executes a backup of Energy Meter state if VDCIN<1.2V
    Accumulate_Energy();
    Manage_UART_Rx();//this function manages UART communication with the PC

    if (TIMECON_bit.ALARM) {
      //clear ALARM flag
      TIMECON_bit.ALARM = 0;

      //set Bit0 in Low_Priority_Command[0]
      Set_flag(Bit0, &Low_Priority_Command[0]);
    }

    if (Low_Priority_Command[0] & Bit0) {
      //execute one Low Priority Task
      LP_func_ptr = (void (*) (void))Table_LP_Func[LP_Task];
      (*LP_func_ptr)();

      //increment pointer
      LP_Task=LP_Task+1;
    }
  }
  //Now, the program enters in Battery Mode (PSM1)
  Midnight_Management_PSM1();
  Monthly_Energy_Storage();
  Prepare_for_Sleep();
  Refresh_Watchdog();//this function prevents watchdog from timeout

  //enter PSM2 mode (Deep Sleep): Bit4 of POWCON=1
  //set P0.6=SCLK and P0.4=SDATA with weak pull up enabled otherwise the processor still
  //consumes power in sleep mode
  IE_bit.EA = 0;//disable all interrupts
// PINMAP0 = 0x50;
  KYREG = 0xa7;
  POWCON=0x10;

  //in case the processor has changed supply from the battery to VDD,
  //the command to enter PSM2 does not have any effect. For this reason, this instruction
  //is executed only if the supply has changed to VDD
  //The opcode of this instruction is 0x020000
  asm("ljmp 0x0");

}