-#include <msp430.h> \r
-\r
-static volatile unsigned int ADC_Result;\r
-static volatile unsigned int irq_events = 0;\r
-enum {ev_btn1 = 0, ev_btn2, ev_pir1, ev_pir2, ev_tmr, ev_adc, ev_MAX};\r
-\r
-int main(void)\r
-{\r
- int Duty_Cycle = 1;\r
- int Increment = 1;\r
- unsigned int Time_Count = 0;\r
- unsigned int Time_Left = 5;\r
-\r
- WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer\r
- // Configure GPIO Out\r
- P1DIR |= BIT0|BIT1|BIT2; // Set P1.0&1&2/LEDs to output direction\r
- P1OUT &= ~(BIT0|BIT1); // P1.0&1 LEDs off\r
- P1SEL1 |= BIT2; // P1.2 PWM out\r
-\r
- // Configure GPIO In\r
- P2DIR &= ~(BIT3|BIT7); // Buttons\r
- P2OUT |= BIT3|BIT7; // Pull up\r
- P2REN |= BIT3|BIT7; // Enable pull-up\r
- P2IES |= BIT3|BIT7; // INT on Hi->Lo edge\r
- P2IE |= BIT3|BIT7; // INT enable\r
-\r
- P2DIR &= ~(BIT2|BIT5); // PIR Sensors\r
- P2OUT &= ~(BIT2|BIT5); // Pull down\r
- P2REN |= BIT2|BIT5; // Enable pull-down\r
- P2IES &= ~(BIT2|BIT5); // INT on Lo->Hi edge\r
- P2IE |= BIT2|BIT5; // INT enable\r
- P2IFG = 0; // ??? Needed?\r
-\r
- // Configure ADC A7 pin\r
- SYSCFG2 |= ADCPCTL7;\r
-\r
- // Configure ADC10\r
- ADCCTL0 |= ADCSHT_2 | ADCON; // ADCON, S&H=16 ADC clks\r
- ADCCTL1 |= ADCSHP; // ADCCLK = MODOSC; sampling timer\r
- ADCCTL2 |= ADCRES; // 10-bit conversion results\r
- ADCMCTL0 |= ADCINCH_7; // A7 ADC input select; Vref=AVCC\r
- ADCIE |= ADCIE0; // Enable ADC conv complete interrupt\r
-\r
- // Configure timer A0 for PWM\r
- TA0CCR0 = 10000-1; // PWM Period\r
- TA0CCTL2 = OUTMOD_7; // CCR2 reset/set\r
- TA0CCR2 = 500; // CCR2 PWM duty cycle\r
- TA0CTL = TASSEL__SMCLK | MC__UP | TACLR; // SMCLK, up mode, clear TAR\r
-\r
- //Configure timer A1 for counting time\r
- TA1CTL |= TASSEL__SMCLK | MC__CONTINUOUS | TACLR | TAIE; // SMCLK, no divider, continuous mode\r
-\r
- // Disable the GPIO power-on default high-impedance mode to activate\r
- // previously configured port settings\r
- PM5CTL0 &= ~LOCKLPM5;\r
-\r
- while(1)\r
- {\r
- unsigned int events;\r
-\r
- _disable_interrupt();\r
- events = irq_events;\r
- irq_events = 0;\r
- _enable_interrupt();\r
-\r
- // Button 2 or PIR events initiate light measurement and turns on green led\r
- if (events & (1<<ev_btn2|1<<ev_pir1|1<<ev_pir2)) {\r
- if (Duty_Cycle > 1) {\r
- Time_Left = 15;\r
- continue;\r
- }\r
- ADCCTL0 |= ADCENC | ADCSC; // Sampling and conversion start\r
- P1OUT |= BIT1; // Set P1.1 LED on\r
- }\r
-\r
- // End of light measurement, set new Duty_Cycle and zero increment and turns off green led\r
- if (events & 1<<ev_adc) {\r
- P1OUT &= ~BIT1; // Clear P1.1 LED off\r
- if (Time_Left)\r
- continue;\r
- if (ADC_Result < 200)\r
- continue;\r
- Time_Left = 15;\r
- Increment = 1;\r
- }\r
-\r
- // Button 1 sets non-zero increment (and toggles it)\r
- if (events & 1<<ev_btn1) {\r
- if (Duty_Cycle > 5000) {\r
- Time_Left = 0;\r
- Increment = -1;\r
- } else {\r
- Time_Left = 15;\r
- Increment = 1;\r
- }\r
- }\r
-\r
- // Timer event (100 ms) changed duty cycle and flashes red led\r
- if (events & 1<<ev_tmr) {\r
- if (Time_Count++ > 10) {\r
- Time_Count = 0;\r
- P1OUT ^= BIT0;\r
- if (Time_Left)\r
- Time_Left--;\r
- else if (Duty_Cycle > 1)\r
- Increment = -1;\r
- }\r
- if (Increment == 0)\r
- continue;\r
- else if (Increment > 0)\r
- Duty_Cycle *= 2;\r
- else if (Increment < 0)\r
- Duty_Cycle /= 2;\r
- if (Duty_Cycle < 1) {\r
- Duty_Cycle = 1;\r
- Increment = 0;\r
- }\r
- if (Duty_Cycle > (10000-1)) {\r
- Duty_Cycle = 10000-1;\r
- Increment = 0;\r
- }\r
- TA0CCR2 = Duty_Cycle;\r
- }\r
- __bis_SR_register(LPM0_bits | GIE);\r
- __no_operation();\r
- }\r
- return 0; /* not reached */\r
-}\r
-\r
-// TIMER interrupt routine\r
-#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)\r
-#pragma vector = TIMER1_A1_VECTOR\r
-__interrupt void Timer_A (void)\r
-#elif defined(__GNUC__)\r
-void __attribute__ ((interrupt(TIMER1_A1_VECTOR))) Timer_A (void)\r
-#else\r
-#error Compiler not supported!\r
-#endif\r
-{\r
- switch(__even_in_range(TA1IV,TA1IV_TAIFG))\r
- {\r
- case TA1IV_NONE:\r
- break; // No interrupt\r
- case TA1IV_TACCR1:\r
- break; // CCR1 not used\r
- case TA1IV_TACCR2:\r
- break; // CCR2 not used\r
- case TA1IV_TAIFG:\r
- irq_events |= 1<<ev_tmr;\r
- __bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0\r
- break;\r
- default:\r
- break;\r
- }\r
- //if (Time_Count++ > 1000) {\r
- // Time_Count = 0;\r
- // __bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0\r
- //}\r
-}\r
-\r
-// ADC interrupt service routine\r
-#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)\r
-#pragma vector=ADC_VECTOR\r
-__interrupt void ADC_ISR(void)\r
-#elif defined(__GNUC__)\r
-void __attribute__ ((interrupt(ADC_VECTOR))) ADC_ISR (void)\r
-#else\r
-#error Compiler not supported!\r
-#endif\r
-{\r
- switch(__even_in_range(ADCIV,ADCIV_ADCIFG))\r
- {\r
- case ADCIV_NONE:\r
- break;\r
- case ADCIV_ADCOVIFG:\r
- break;\r
- case ADCIV_ADCTOVIFG:\r
- break;\r
- case ADCIV_ADCHIIFG:\r
- break;\r
- case ADCIV_ADCLOIFG:\r
- break;\r
- case ADCIV_ADCINIFG:\r
- break;\r
- case ADCIV_ADCIFG:\r
- ADC_Result = ADCMEM0;\r
- irq_events |= 1<<ev_adc;\r
- __bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0\r
- break;\r
- default:\r
- break;\r
- }\r
-}\r
-\r
-// GPIO interrupt service routine\r
-#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)\r
-#pragma vector=PORT2_VECTOR\r
-__interrupt void Port_2(void)\r
-#elif defined(__GNUC__)\r
-void __attribute__ ((interrupt(PORT2_VECTOR))) Port_2 (void)\r
-#else\r
-#error Compiler not supported!\r
-#endif\r
-{\r
- if (P2IFG & BIT3) {\r
- irq_events |= 1<<ev_btn1;\r
- P2IFG &= ~BIT3; // Clear P1.3 IFG\r
- }\r
- if (P2IFG & BIT7) {\r
- irq_events |= 1<<ev_btn2;\r
- P2IFG &= ~BIT7; // Clear P1.3 IFG\r
- }\r
- if (P2IFG & BIT2) {\r
- irq_events |= 1<<ev_pir1;\r
- P2IFG &= ~BIT2; // Clear P1.4 IFG\r
- }\r
- if (P2IFG & BIT5) {\r
- irq_events |= 1<<ev_pir2;\r
- P2IFG &= ~BIT5; // Clear P1.7 IFG\r
- }\r
- __bic_SR_register_on_exit(LPM3_bits); // Exit LPM3\r
-}\r
+#include <msp430.h>
+
+static volatile unsigned int ADC_Result;
+static volatile unsigned int irq_events = 0;
+enum {ev_btn1 = 0, ev_btn2, ev_pir1, ev_pir2, ev_tmr, ev_adc, ev_MAX};
+
+int main(void)
+{
+ int Duty_Cycle = 1;
+ int Increment = 1;
+ unsigned int Time_Count = 0;
+ unsigned int Time_Left = 5;
+
+ WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer
+ // Configure GPIO Out
+ P1DIR |= BIT0|BIT1|BIT2; // Set P1.0&1&2/LEDs to output direction
+ P1OUT &= ~(BIT0|BIT1); // P1.0&1 LEDs off
+ P1SEL1 |= BIT2; // P1.2 PWM out
+
+ // Configure GPIO In
+ P2DIR &= ~(BIT3|BIT7); // Buttons
+ P2OUT |= BIT3|BIT7; // Pull up
+ P2REN |= BIT3|BIT7; // Enable pull-up
+ P2IES |= BIT3|BIT7; // INT on Hi->Lo edge
+ P2IE |= BIT3|BIT7; // INT enable
+
+ P2DIR &= ~(BIT2|BIT5); // PIR Sensors
+ P2OUT &= ~(BIT2|BIT5); // Pull down
+ P2REN |= BIT2|BIT5; // Enable pull-down
+ P2IES &= ~(BIT2|BIT5); // INT on Lo->Hi edge
+ P2IE |= BIT2|BIT5; // INT enable
+ P2IFG = 0; // ??? Needed?
+
+ // Configure ADC A7 pin
+ SYSCFG2 |= ADCPCTL7;
+
+ // Configure ADC10
+ ADCCTL0 |= ADCSHT_2 | ADCON; // ADCON, S&H=16 ADC clks
+ ADCCTL1 |= ADCSHP; // ADCCLK = MODOSC; sampling timer
+ ADCCTL2 |= ADCRES; // 10-bit conversion results
+ ADCMCTL0 |= ADCINCH_7; // A7 ADC input select; Vref=AVCC
+ ADCIE |= ADCIE0; // Enable ADC conv complete interrupt
+
+ // Configure timer A0 for PWM
+ TA0CCR0 = 10000-1; // PWM Period
+ TA0CCTL2 = OUTMOD_7; // CCR2 reset/set
+ TA0CCR2 = 500; // CCR2 PWM duty cycle
+ TA0CTL = TASSEL__SMCLK | MC__UP | TACLR; // SMCLK, up mode, clear TAR
+
+ //Configure timer A1 for counting time
+ TA1CTL |= TASSEL__SMCLK | MC__CONTINUOUS | TACLR | TAIE; // SMCLK, no divider, continuous mode
+
+ // Disable the GPIO power-on default high-impedance mode to activate
+ // previously configured port settings
+ PM5CTL0 &= ~LOCKLPM5;
+
+ while(1)
+ {
+ unsigned int events;
+
+ _disable_interrupts();
+ events = irq_events;
+ irq_events = 0;
+ _enable_interrupts();
+
+ // Button 2 or PIR events initiate light measurement and tuns on green led
+ if (events & (1<<ev_btn2|1<<ev_pir1|1<<ev_pir2)) {
+ if (Duty_Cycle > 1) {
+ Time_Left = 15;
+ continue;
+ }
+ ADCCTL0 |= ADCENC | ADCSC; // Sampling and conversion start
+ P1OUT |= BIT1; // Set P1.1 LED on
+ }
+
+ // End of light measurement, set new Duty_Cycle and zero increment and tuns off green led
+ if (events & 1<<ev_adc) {
+ P1OUT &= ~BIT1; // Clear P1.1 LED off
+ if (Time_Left)
+ continue;
+ if (ADC_Result < 200)
+ continue;
+ Time_Left = 15;
+ Increment = 1;
+ }
+
+ // Button 1 sets non-zero increment (and toggles it)
+ if (events & 1<<ev_btn1) {
+ if (Duty_Cycle > 5000) {
+ Time_Left = 0;
+ Increment = -1;
+ } else {
+ Time_Left = 15;
+ Increment = 1;
+ }
+ }
+
+ // Timer event (100 ms) changed duty cycle and flashes red led
+ if (events & 1<<ev_tmr) {
+ if (Time_Count++ > 10) {
+ Time_Count = 0;
+ P1OUT ^= BIT0;
+ if (Time_Left)
+ Time_Left--;
+ else if (Duty_Cycle > 1)
+ Increment = -1;
+ }
+ if (Increment == 0)
+ continue;
+ else if (Increment > 0)
+ Duty_Cycle *= 2;
+ else if (Increment < 0)
+ Duty_Cycle /= 2;
+ if (Duty_Cycle < 1) {
+ Duty_Cycle = 1;
+ Increment = 0;
+ }
+ if (Duty_Cycle > (10000-1)) {
+ Duty_Cycle = 10000-1;
+ Increment = 0;
+ }
+ TA0CCR2 = Duty_Cycle;
+ }
+ __bis_SR_register(LPM0_bits | GIE);
+ __no_operation();
+ }
+ return 0; /* not reached */
+}
+
+// TIMER interrupt routine
+#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
+#pragma vector = TIMER1_A1_VECTOR
+__interrupt void Timer_A (void)
+#elif defined(__GNUC__)
+void __attribute__ ((interrupt(TIMER1_A1_VECTOR))) Timer_A (void)
+#else
+#error Compiler not supported!
+#endif
+{
+ switch(__even_in_range(TA1IV,TA1IV_TAIFG))
+ {
+ case TA1IV_NONE:
+ break; // No interrupt
+ case TA1IV_TACCR1:
+ break; // CCR1 not used
+ case TA1IV_TACCR2:
+ break; // CCR2 not used
+ case TA1IV_TAIFG:
+ irq_events |= 1<<ev_tmr;
+ __bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0
+ break;
+ default:
+ break;
+ }
+ //if (Time_Count++ > 1000) {
+ // Time_Count = 0;
+ // __bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0
+ //}
+}
+
+// ADC interrupt service routine
+#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
+#pragma vector=ADC_VECTOR
+__interrupt void ADC_ISR(void)
+#elif defined(__GNUC__)
+void __attribute__ ((interrupt(ADC_VECTOR))) ADC_ISR (void)
+#else
+#error Compiler not supported!
+#endif
+{
+ switch(__even_in_range(ADCIV,ADCIV_ADCIFG))
+ {
+ case ADCIV_NONE:
+ break;
+ case ADCIV_ADCOVIFG:
+ break;
+ case ADCIV_ADCTOVIFG:
+ break;
+ case ADCIV_ADCHIIFG:
+ break;
+ case ADCIV_ADCLOIFG:
+ break;
+ case ADCIV_ADCINIFG:
+ break;
+ case ADCIV_ADCIFG:
+ ADC_Result = ADCMEM0;
+ irq_events |= 1<<ev_adc;
+ __bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0
+ break;
+ default:
+ break;
+ }
+}
+
+// GPIO interrupt service routine
+#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
+#pragma vector=PORT2_VECTOR
+__interrupt void Port_2(void)
+#elif defined(__GNUC__)
+void __attribute__ ((interrupt(PORT2_VECTOR))) Port_2 (void)
+#else
+#error Compiler not supported!
+#endif
+{
+ if (P2IFG & BIT3) {
+ irq_events |= 1<<ev_btn1;
+ P2IFG &= ~BIT3; // Clear P1.3 IFG
+ }
+ if (P2IFG & BIT7) {
+ irq_events |= 1<<ev_btn2;
+ P2IFG &= ~BIT7; // Clear P1.3 IFG
+ }
+ if (P2IFG & BIT2) {
+ irq_events |= 1<<ev_pir1;
+ P2IFG &= ~BIT2; // Clear P1.4 IFG
+ }
+ if (P2IFG & BIT5) {
+ irq_events |= 1<<ev_pir2;
+ P2IFG &= ~BIT5; // Clear P1.7 IFG
+ }
+ __bic_SR_register_on_exit(LPM3_bits); // Exit LPM3
+}
projects / sensor-light.git / blobdiff