added adc readout for the battery voltage and shutdown
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parent
0b6fcc1354
commit
96d6cbd616
42
main.c
42
main.c
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@ -29,7 +29,9 @@ int main(void)
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{
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// Configure cpu and mandatory peripherals
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systemInit();
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//pmuInit();
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//enable clocks to adc and watchdog
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pmuInit();
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uint32_t currentSecond, lastSecond;
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currentSecond = lastSecond = 0;
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@ -38,7 +40,7 @@ int main(void)
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gpioSetDir(1, 9, 1);
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gpioSetValue (1, 9, 0);
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//backlight off
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//backlight on
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gpioSetDir(1, 10, 1);
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gpioSetValue (1, 10, 1);
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@ -50,19 +52,21 @@ int main(void)
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//pmuSleep();
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//pmuPowerDown();
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init(); // display
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/*
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//Make PIO1_11 an analog input
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gpioSetDir(CFG_LED_PORT, CFG_LED_PIN, 0);
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IOCON_PIO1_11 = 0x41;
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adcInit();
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*/
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fill(255);
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display(0);
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uint32_t j=0;
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// Set GPIO1.4 to input
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// Set GPIO3.3 to input
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gpioSetDir(3, 3, gpioDirection_Input);
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// Disable the internal pullup/down resistor
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// gpioSetPullup(&IOCON_PIO3_3, gpioPullupMode_Inactive);
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//disable the JTAG on PIO3_3
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IOCON_PIO3_3 = 0x10;
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int yctr=0;
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@ -145,11 +149,29 @@ int main(void)
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fontctr=0;
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};
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/*
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uint32_t results = adcRead(7);
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dx=DoString(0,yctr+9,"LED:");
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DoInt(dx,yctr+9,results);
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*/
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uint32_t results = adcRead(7);
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//dx=DoString(0,yctr+10,"LED:");
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//DoInt(dx,yctr+9,results);
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results = adcRead(1);
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dx=DoString(0,yctr+20,"Voltage:");
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results *= 10560;
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results /= 1024;
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DoInt(dx,yctr+20,results);
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if( results < 3500 ){
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DoString(0,yctr+30,"Shutdown");
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//external vcc off
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gpioSetDir(1, 9, 0);
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gpioSetValue (1, 9, 0);
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//backlight off
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gpioSetValue (1, 10, 0);
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SCB_SCR |= SCB_SCR_SLEEPDEEP;
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PMU_PMUCTRL = PMU_PMUCTRL_DPDEN_DEEPPOWERDOWN;
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__asm volatile ("WFI");
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}else{
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DoString(0,yctr+30,"OK ");
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}
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/*
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lastSecond = currentSecond;
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