initial commit

Makefile

+# Project name
+SOURCE          = adclight.c
+ADDITIONAL      =
+# Get base name so we can create .elf file
+NAME            = $(basename $(SOURCE))
+# MSP430 MCU to compile for
+CPU             = msp430g2553
+# Optimisation level
+OPTIMIZATION    = -O0
+# Extra variables
+CFLAGS          = -mmcu=$(CPU) $(OPTIMIZATION) -std=c99 -Wall -g -fomit-frame-pointer
+# Libemb library link flags
+LIBEMB          = -lshell -lconio -lserial
+
+# Build and link executable
+$(NAME).elf: $(SOURCE) $(ADDITIONAL)
+ifeq (,$(findstring libemb,$(shell cat $(SOURCE))))
+	msp430-gcc $(CFLAGS) -o $@ $(SOURCE) $(ADDITIONAL)
+else
+	msp430-gcc $(CFLAGS) -o $@ $(SOURCE) $(ADDITIONAL) $(LIBEMB)
+endif
+	msp430-objdump -D $(NAME).elf > $(NAME).hex
+
+# Flash to board with mspdebug
+flash: $(NAME).elf
+	mspdebug rf2500 "prog $(NAME).elf"
+
+# Erase board
+erase:
+	mspdebug rf2500 erase
+
+stuff: hworld.c
+	echo "I found hworld.c!" && cat hworld.c
+
+# Clean up temporary files
+clean:
+	rm -f *.elf *.hex
+
+# Remote debug board
+debug: $(NAME).elf
+	( mspdebug rf2500 "gdb" 1>/dev/null & ); msp430-gdb $(NAME).elf -ex "target remote :2000"

adclight.c

+#include <msp430.h>
+// The Best Lack All Conviction,
+// While the Worst Are Full of Passionate Intensity  
+int main(void)
+{
+    WDTCTL  = WDTPW | WDTHOLD;              // wizard words
+    BCSCTL1 = CALBC1_1MHZ;
+    DCOCTL  = CALDCO_1MHZ;
+
+    P1DIR = BIT6;                           // BIT6 alternate output
+    P1SEL = BIT6|BIT4;                      // BIT4 analog input (channel 4)
+
+    TA0CTL   = TASSEL_2 | MC_1 | ID_3;      // use TA0.1 for PWM on P1.6
+    TA0CCR0  = 0x3FF;                       // 10-bit maximum value
+    TA0CCR1  = 0;                           // start off
+    TA0CCTL1 = OUTMOD_7;                    // reset/set output mode
+
+    ADC10CTL1 = INCH_4 | ADC10DIV_3;        // ADC10 channel 4, clock divider 3
+    ADC10CTL0 = SREF_0 | ADC10SHT_3 |       // VCC/VSS ref, 64 x ADC10CLKs
+               ADC10ON | ADC10IE;           // ADC10 enable, ADC10 interrupt enable
+    ADC10AE0  = BIT4;                       // analog enable channel 4
+
+    // __enable_interrupt();                // interrupts enabled
+    while(1)
+    {
+        __delay_cycles(10000);              // wait for ADC ref to settle
+        ADC10CTL0 |= ENC + ADC10SC;         // sampling and conversion start
+        __bis_SR_register(CPUOFF | GIE);    // go to sleep with interrupts enabled
+        TA0CCR1 = ADC10MEM & 0x3F8;         // assigns the value held in ADC10MEM to the TA0CCR1 register
+    }
+
+    return 0;
+}
+ 
+// ADC10 interrupt service routine
+#pragma vector=ADC10_VECTOR
+__interrupt void ADC10_ISR (void)
+{
+    __bic_SR_register_on_exit(CPUOFF);      // wake up
+}
+

adcspeaker.c

+#include <msp430.h>
+// The Best Lack All Conviction,
+// While the Worst Are Full of Passionate Intensity 
+int main(void)
+{
+    WDTCTL  = WDTPW | WDTHOLD;              // wizard words
+    BCSCTL1 = CALBC1_1MHZ;
+    DCOCTL  = CALDCO_1MHZ;
+
+    P1DIR = BIT6;                           // BIT6 alternate output
+    P1SEL = BIT6|BIT4;                      // BIT4 analog input (channel 4)
+
+    TA0CTL   = TASSEL_2 | MC_1 | ID_3;      // use TA0.1 for PWM on P1.6
+    TA0CCR0  = 0x3FF;                       // 10-bit maximum value
+    TA0CCR1  = 0;                           // start off
+    TA0CCTL1 = OUTMOD_4;                    // reset/set output mode
+
+    ADC10CTL1 = INCH_4 | ADC10DIV_3;        // ADC10 channel 4, clock divider 3
+    ADC10CTL0 = SREF_0 | ADC10SHT_3 |       // VCC/VSS ref, 64 x ADC10CLKs
+               ADC10ON | ADC10IE;           // ADC10 enable, ADC10 interrupt enable
+    ADC10AE0  = BIT4;                       // analog enable channel 4
+
+    __enable_interrupt();                   // interrupts enabled
+    while(1)
+    {
+        __delay_cycles(10000);              // wait for ADC ref to settle
+        ADC10CTL0 |= ENC + ADC10SC;         // sampling and conversion start
+        __bis_SR_register(CPUOFF | GIE);    // go to sleep with interrupts enabled
+        TA0CCR0 = 0x3FF -(ADC10MEM & 0x3F8);// assigns the value held in ADC10MEM to the TA0CCR0 register
+    }
+
+    return 0;
+}
+ 
+// ADC10 interrupt service routine
+#pragma vector=ADC10_VECTOR
+__interrupt void ADC10_ISR (void)
+{
+    __bic_SR_register_on_exit(CPUOFF);      // wake up
+}
+