void InitHW(void)
{
/* Step 1. Initialize System Control: */
/* PLL, WatchDog, enable Peripheral Clocks */
InitSysCtrl();
// Step 2. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
DINT;
// Initialize the PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file.
InitPieCtrl();
// Disable CPU interrupts and clear all CPU interrupt flags:
IER = 0x0000;
IFR = 0x0000;
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c.
InitPieVectTable();
// Interrupts that are used in this example are re-mapped to
// ISR functions found within this file.
EALLOW; // This is needed to write to EALLOW protected registers
// PieVectTable.TINT0 = &cpu_timer0_isr;
// PieVectTable.XINT13 = &cpu_timer1_isr;
PieVectTable.TINT2 = &os_time_tick;
EDIS; // This is needed to disable write to EALLOW protected registers
// Step 3. Initialize the Device Peripheral. This function can be
// found in DSP2833x_CpuTimers.c
InitI2CGpio();
}
void main(void)
{
char s1[32];
unsigned char flag = 0;
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2802x_SysCtrl.c file.
InitSysCtrl();
// Step 2. Initalize GPIO:
// This example function is found in the DSP2802x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio();
// Setup only the GP I/O only for I2C functionality
InitI2CGpio();
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
DINT;
// Initialize PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2802x_PieCtrl.c file.
InitPieCtrl();
// Disable CPU interrupts and clear all CPU interrupt flags:
IER = 0x0000;
IFR = 0x0000;
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2802x_DefaultIsr.c.
// This function is found in DSP2802x_PieVect.c.
InitPieVectTable();
#ifndef _DEBUG
// Copy time critical code and Flash setup code to RAM
// This includes the following ISR functions: EPwm1_timer_isr(), EPwm2_timer_isr()
// EPwm3_timer_isr and and InitFlash();
// The RamfuncsLoadStart, RamfuncsLoadEnd, and RamfuncsRunStart
// symbols are created by the linker. Refer to the F2808.cmd file.
MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
// Call Flash Initialization to setup flash waitstates
// This function must reside in RAM
InitFlash();
#endif
// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2802x_InitPeripherals.c
// InitPeripherals(); // Not required for this example
I2C_Init(); //use polling
// Step 5. Com port initial
scia_echoback_init();
scia_msg("-- Network Analyzer V0.03--\r\n");
scia_msg("-- Build On: "__DATE__" "__TIME__"--\r\n");
scia_msg("-- Start: 36.125KHz--\r\n");
scia_msg("-- End: 100kHz --\r\n");
scia_msg("-- Step : 125Hz --\r\n");
scia_msg("-- Point: 511 --\r\n");
// Step 6. BSP init, LEDs & Button
led_init();
button_init();
GPIOx_Init();
//blink
led_on(0x007f);
led_off(0x007f);
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
// Step 7. Initial AD5933
ad5933_init();
// Application loop
for(;;)
{
/*
* GPIO12 pressed routine
*/
while( (0 == GpioDataRegs.GPADAT.bit.GPIO12)
&& ( 0 == GpioDataRegs.GPADAT.bit.GPIO19 ) ){};
//GPIO12 pressed
if(1 == GpioDataRegs.GPADAT.bit.GPIO12)
{
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
DELAY_US(100000); // Delay 100ms , wait
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep( 0x0001 << 0, mag_ref);
//led indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 0); //led0 off
led_off(0x01 << 6); //led6 off
sprintf(s1,"Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 0); //led0 on
led_on(0x01 << 6); //led6 on
sprintf(s1,"Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
}
/*
* GPIO19 pressed routine
*/
if( 1 == GpioDataRegs.GPADAT.bit.GPIO19)
{
//clear flag
flag = 0;
//GROUP1--0b1010
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
//set GPIO1 GPIO3
GPIOx_Set(0x000A);
// Delay 100ms , wait
DELAY_US(100000);
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep(0x0001 << 0, mag_ref0);;
//led0 indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 0); //led0 off
sprintf(s1,"Group0 Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 0); //led0 on
flag++;
sprintf(s1,"Group0 Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
//GROUP2--0b0101
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
//set GPIO0 GPIO2
GPIOx_Set(0x0005);
// Delay 100ms , wait
DELAY_US(100000);
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep(0x0001 << 1, mag_ref1);
//led1 indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 1); //led1 off
sprintf(s1,"Group1 Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 1); //led1 on
flag++;
sprintf(s1,"Group1 Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
//GROUP3--0b1111
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
//set GPIO0~GPIO3
GPIOx_Set(0x000F);
// Delay 100ms , wait
DELAY_US(100000);
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep(0x0001 << 2, mag_ref2);
//led2 indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 2); //led2 off
sprintf(s1,"Group2 Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 2); //led2 on
flag++;
sprintf(s1,"Group2 Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
//GROUP4--0b1110
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
//set GPIO1~GPIO3
GPIOx_Set(0x000E);
// Delay 100ms , wait
DELAY_US(100000);
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep(0x0001 << 3, mag_ref3);
//led3 indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 3); //led3 off
sprintf(s1,"Group3 Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 3); //led3 on
flag++;
sprintf(s1,"Group3 Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
//GROUP5--0b0110
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
//set GPIO2~GPIO3
GPIOx_Set(0x0006);
// Delay 100ms , wait
DELAY_US(100000);
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep(0x0001 << 4, mag_ref4);
//led4 indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 4); //led4 off
sprintf(s1,"Group4 Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 4); //led4 on
flag++;
sprintf(s1,"Group4 Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
//GROUP6--0b1101
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
//set GPIO0 GPIO2 GPIO3
GPIOx_Set(0x000D);
// Delay 100ms , wait
DELAY_US(100000);
sprintf(s1,"Temperature=%d\r\n", ad5993_GetTemperature());
scia_msg(s1);
ad5933_sweep(0x0001 << 5, mag_ref5);
//led5 indicator
led_off(0x007f);
if( diff_variance < AD5933_STANDARD_VARIANCE )
{
led_off(0x01 << 5); //led5 off
sprintf(s1,"Group5 Ref larger than standard.\r\n" );
scia_msg(s1);
}
else
{
led_on(0x01 << 5); //led5 on
flag++;
sprintf(s1,"Group5 Ref less than standard.\r\n" );
scia_msg(s1);
}
scia_PrintLF();
if(6 == flag)
{
led_on(0x01 << 6); //led6 on
sprintf(s1,"total less than standard.\r\n" );
scia_msg(s1);
}
else
{
led_off(0x01 << 6); //led6 off
sprintf(s1,"any larger than standard.\r\n" );
scia_msg(s1);
}
//the end
//clear GPIO0~GPIO3
GPIOx_Clear(0x000f);
}
} // end of for(;;)
} // end of main
