LaunchPad(MSP430G2553)_官方例程.doc

LaunchPad 官方例程（无修改）一切皆为2012TI杯电子设计大赛1./*/ LaunchPad Lab2 - Software Toggle P1.0,/ MSP430G2xx2/ -/ /| XIN|-/ | | |/ -|RST XOUT|-/ | |/ | P1.0|-LED/*#include void main(void)WDTCTL = WDTPW + WDTHOLD; / Stop watchdog timerif (CALBC1_1MHZ = 0xFF | CALDCO_1MHZ = 0xFF)while(1);/ If calibration constants erased, trap CPU!/ Configure Basic ClockBCSCTL1 = CALBC1_1MHZ; / Set rangeDCOCTL = CALDCO_1MHZ;/ Set DCO step + modulationBCSCTL3 |= LFXT1S_2;/ Set LFXT1P1DIR = BIT6; / P1.6 output (green LED)P1OUT = 0; / LED offIFG1 &= OFIFG; / Clear OSCFault flagBCSCTL2 |=SELM_1 + DIVM_0; / Set MCLKfor(;)P1OUT = BIT6; / P1.6 on (green LED)_delay_cycles(100);P1OUT = 0; / green LED off_delay_cycles(5000);2./*/ LaunchPad Lab3 - Software Port Interrupt Service/ MSP430G2xx2/ -/ /| XIN|-/ | | |/ -|RST XOUT|-/ /| | |/ -o-|P1.3 P1.0|-LED/ |/*#include void main(void)WDTCTL = WDTPW + WDTHOLD; / Stop watchdog timerP1DIR |= BIT0; / Set P1.0 to output directionP1IES |= BIT3; / P1.3 Hi/lo edgeP1IFG &= BIT3; / P1.3 IFG clearedP1IE |= BIT3; / P1.3 interrupt enabled_BIS_SR(LPM4_bits + GIE); / Enter LPM4 w/interrupt/ Port 1 interrupt service routine#pragma vector=PORT1_VECTOR_interrupt void Port_1(void)if (P1IFG & BIT3)P1OUT = BIT0; / P1.0 = toggleP1IFG &= BIT3; / P1.3 IFG cleared3./*/ LaunchPad Lab5 - ADC10, Sample A10 Temp and Convert to oC and oF/ MSP430G2452/ -/ /| XIN|-/ | | |/ -|RST XOUT|-/ | |/ |A10 |/*#include msp430g2553.hlong temp;long IntDegF;long IntDegC;void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop WDT /Configure ADC10 ADC10CTL1 = INCH_10 + ADC10DIV_3; / Choose ADC Channel as Temp Sensor ADC10CTL0 = SREF_1 + ADC10SHT_3 + REFON + ADC10ON + ADC10IE;/Choose ADC Ref source _enable_interrupt(); / Enable interrupts. TACCR0 = 30; / Delay to allow Ref to settle TACCTL0 |= CCIE; / Compare-mode interrupt. TACTL = TASSEL_2 | MC_1; / TACLK = SMCLK, Up mode. LPM0; / Wait for delay. TACCTL0 &= CCIE; / Disable timer Interrupt _disable_interrupt(); while(1) ADC10CTL0 |= ENC + ADC10SC; / Sampling and conversion start _bis_SR_register(LPM0_bits + GIE); / LPM0 with interrupts enabled / oF = (A10/1024)*1500mV)-923mV)*1/1.97mV = A10*761/1024 - 468 temp = ADC10MEM; IntDegF = (temp - 630) * 761) / 1024; / oC = (A10/1024)*1500mV)-986mV)*1/3.55mV = A10*423/1024 - 278 temp = ADC10MEM; IntDegC = (temp - 673) * 423) / 1024; _no_operation(); / SET BREAKPOINT HERE / ADC10 interrupt service routine#pragma vector=ADC10_VECTOR_interrupt void ADC10_ISR (void) _bic_SR_register_on_exit(LPM0_bits); / Clear CPUOFF bit from 0(SR)#pragma vector=TIMER0_A0_VECTOR_interrupt void ta0_isr(void) TACTL = 0; _bic_SR_register_on_exit(LPM0_bits); / Clear CPUOFF bit from 0(SR)4./*/ MSP430F20xx Demo - Basic Clock, Output Buffered SMCLK, ACLK and MCLK/10/ Description: Buffer ACLK on P2.0, default SMCLK(DCO) on P1.4 and MCLK/10 on/ P1.5./ ACLK = LFXT1 = VLO, MCLK = SMCLK = default DCO/ /* External watch crystal installed on XIN XOUT is required for ACLK */ MSP430F20xx/ -/ /| XIN|-/ | | | / -|RST XOUT|-/ | |/ | P1.4/SMCLK|-SMCLK = Default DCO/ | P1.5|-MCLK/10 = DCO/10/ | P1.0/ACLK|-ACLK = VLO/ M. Buccini / L. Westlund/ Texas Instruments Inc./ October 2005/ Built with IAR Embedded Workbench Version: 3.40A/*#include unsigned char s;void main(void) WDTCTL = WDTPW +WDTHOLD; / Stop Watchdog Timer BCSCTL3 |= LFXT1S_2; / LFXT1 = VLO /DCOCTL = 0; /BCSCTL1 = CALBC1_16MHZ; /DCOCTL = CALBC1_16MHZ; P1DIR |= 0x31; / P1.0,5 and P1.4 outputs P1SEL |= 0x11; / P1.0,4 ACLK/VLO, SMCLK/DCO output /SMCLK Sub-System Main Clk， ACLK和SMCLK可以通过复用引脚输出，MCLK不能直接输出体现, MCLK可以配置为VLO或者DCO while(1) P1OUT |= 0x20; / P1.5 = 1, 通过开关P1.5来体现MCLK，这两条指令的周期大概为SMCLK的1/10 P1OUT &= 0x20;/20; 5./*/ MSP430xG46x Demo - FLL+, Runs Internal DCO at 8MHz/ Description: This program demonstrates setting the internal DCO to run at/ 8MHz with auto-calibration by the FLL+./ ACLK = LFXT1 = 32768Hz, MCLK = SMCLK = DCO = (121+1) x 2 x ACLK = 7995392Hz/ /* An external watch crystal between XIN & XOUT is required for ACLK */ MSP430xG461x/ -/ /| XIN|-/ | | | 32kHz/ -|RST XOUT|-/ | |/ | P1.1|- MCLK = 8MHz/ | |/ | P1.5|- ACLK = 32kHz/ | |/ K. Quiring/ M. Mitchell/ Texas Instruments Inc./ October 2006/ Built with IAR Embedded Workbench Version: 3.41A/*#include void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop watchdog timer FLL_CTL0 |= DCOPLUS + XCAP18PF; / DCO+ set, freq = xtal x D x N+1 SCFI0 |= FN_4; / x2 DCO freq, 8MHz nominal DCO SCFQCTL = 121; / (121+1) x 32768 x 2 = 7.99 MHz P1DIR = 0x22; / P1.1 & P1.5 to output direction P1SEL = 0x22; / P1.1 & P1.5 to output MCLK & ACLK while(1); / Loop in place6./*/ MSP430xG46x Demo - Flash In-System Programming, Copy SegA to SegB/ Description: This program first erases flash seg A, then it increments all/ values in seg A, then it erases seg B, then copies seg A to seg B./ Assumed MCLK 550kHz - 900kHz./ /* Set Breakpoint on NOP in the Mainloop to avoid Stressing Flash */ MSP430xG461x/ -/ /| XIN|-/ | | |/ -|RST XOUT|-/ | |/ M. Mitchell/ Texas Instruments Inc./ Feb 2005/ Built with IAR Embedded Workbench Version: 3.21A/*#include char value; / 8-bit value to write to segment A/ Function prototypesvoid write_SegA (char value);void copy_A2B (void);void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop watchdog timer FCTL2 = FWKEY + FSSEL0 + FN0; / MCLK/2 for Flash Timing Generator value = 0; / Initialize value while(1) / Repeat forever write_SegA(value+); / Write segment A, increment value copy_A2B(); / Copy segment A to B _NOP(); / SET BREAKPOINT HERE void write_SegA (char value) char *Flash_ptr; / Flash pointer unsigned int i; Flash_ptr = (char *) 0x1080; / Initialize Flash pointer FCTL1 = FWKEY + ERASE; / Set Erase bit FCTL3 = FWKEY; / Clear Lock bit *Flash_ptr = 0; / Dummy write to erase Flash segment FCTL1 = FWKEY + WRT; / Set WRT bit for write operation for (i=0; i128; i+) *Flash_ptr+ = value; / Write value to flash FCTL1 = FWKEY; / Clear WRT bit FCTL3 = FWKEY + LOCK; / Set LOCK bitvoid copy_A2B (void) char *Flash_ptrA; / Segment A pointer char *Flash_ptrB; / Segment B pointer unsigned int i; Flash_ptrA = (char *) 0x1080; / Initialize Flash segment A pointer Flash_ptrB = (char *) 0x1000; / Initialize Flash segment B pointer FCTL1 = FWKEY + ERASE; / Set Erase bit FCTL3 = FWKEY; / Clear Lock bit *Flash_ptrB = 0; / Dummy write to erase Flash segment B FCTL1 = FWKEY + WRT; / Set WRT bit for write operation for (i=0; iLED/ |/ K. Quiring/ M. Mitchell/ Texas Instruments Inc./ October 2006/ Built with IAR Embedded Workbench Version: 3.41A/*#include void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop WDT FLL_CTL0 |= XCAP14PF; / Configure load caps P2DIR = BIT1; / Set P2.1 to output direction P1IES = BIT0; / H-L transition P1IE = BIT0; / Enable interrupt _BIS_SR(LPM4_bits + GIE); / LPM4, enable interrupts/ Port 1 interrupt service routine#pragma vector=PORT1_VECTOR_interrupt void Port1_ISR (void) unsigned volatile int i; for (i=10000; i0; i-); / Debounce delay P1IFG &= BIT0; / Clear P1IFG if (P1IN & 0x01) = 0) P2OUT = 0x02; / Toggle P2.1 using exclusive-OR8./*/ MSP430xG46x Demo - Software Port Interrupt on P1.0 from LPM4/ Description: A hi/low transition on P1.0 will trigger P1_ISR which,/ toggles P2.1. Normal mode is LPM4 0.1uA. LPM4 current can be measured/ with the LED removed, all unused P1.x/P2.x configured as output or inputs/ pulled high or low, and ensure the P2.0 interrupt input does not float./ ACLK = 32.768kHz, MCLK = SMCLK = default DCO/ MSP430xG461x/ -/ /| |/ | | |/ -|RST |/ /| | |/ -o-|P1.0 P2.1|-LED/ |/ K. Quiring/ M. Mitchell/ Texas Instruments Inc./ October 2006/ Built with IAR Embedded Workbench Version: 3.41A/*#include void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop WDT FLL_CTL0 |= XCAP14PF; / Configure load caps P2DIR = BIT1; / Set P2.1 to output direction P1IES = BIT0; / H-L transition P1IE = BIT0; / Enable interrupt _BIS_SR(LPM4_bits + GIE); / LPM4, enable interrupts/ Port 1 interrupt service routine#pragma vector=PORT1_VECTOR_interrupt void Port1_ISR (void) unsigned volatile int i; for (i=10000; i0; i-); / Debounce delay P1IFG &= BIT0; / Clear P1IFG if (P1IN & 0x01) = 0) P2OUT = 0x02; / Toggle P2.1 using exclusive-OR9./*/ MSP430xG46x Demo - USCI_A0, 115200 UART Echo ISR, DCO SMCLK/ (modified code example msp430xG46x_uscia0_uart_01_115k.c)/ Description: Echo a received character, RX ISR used. Normal mode is LPM0./ USCI_A0 RX interrupt triggers TX Echo./ Baud rate divider with 1048576hz = 1048576/115200 = 9.1 (009h|01h)/ ACLK = LFXT1 = 32768Hz, MCLK = SMCLK = default DCO = 32 x ACLK = 1048576Hz/ /* An external watch crystal between XIN & XOUT is required for ACLK */ MSP430FG4619/ -/ /| XIN|-/ | | | 32kHz/ -|RST XOUT|-/ | |/ | P2.5/UCA0RXD|/ Texas Instruments Inc./ October 2006/ Built with IAR Embedded Workbench Version: 3.41A/*#include msp430xG46x.hvoid main(void) volatile unsigned int i; WDTCTL = WDTPW+WDTHOLD; / Stop WDT FLL_CTL0 |= XCAP14PF; / Configure load caps do IFG1 &= OFIFG; / Clear OSCFault flag for (i = 0x47FF; i 0; i-); / Time for flag to set while (IFG1 & OFIFG); / OSCFault flag still set? P2SEL |= 0x030; / P2.4,5 = USCI_A0 RXD/TXD UCA0CTL1 |= UCSSEL_2; / SMCLK UCA0BR0 = 18;0x09; / 1MHz 115200 UCA0BR1 = 0;0x00; / 1MHz 115200 UCA0MCTL = 0;0x02; / Modulation UCA0CTL1 &= UCSWRST; / *Initialize USCI state machine* IE2 |= UCA0RXIE; / Enable USCI_A0 RX interrupt _BIS_SR(LPM0_bits + GIE); / Enter LPM0, interrupts enabled/ Echo back RXed character, confirm TX buffer is ready first#pragma vector=USCIAB0RX_VECTOR_interrupt void USCIA0RX_ISR (void) while(!(IFG2&UCA0TXIFG); UCA0TXBUF = UCA0RXBUF; / TX - RXed character10./* * MSP-EXP430G2-LaunchPad User Experience Application * * 1. Device starts up in LPM3 + blinking LED to indicate device is alive * + Upon first button press, device transitions to application mode * 2. Application Mode * + Continuously sample ADC Temp Sensor channel, compare result against * initial value * + Set PWM based on measured ADC offset: Red LED for positive offset, Green * LED for negative offset * + Transmit temperature value via TimerA UART to PC * + Button Press - Calibrate using current temperature * Send character via UART, notifying PC */ #include msp430g2553.h#define LED0 BIT0#define LED1 BIT6#define LED_DIR P1DIR#define LED_OUT P1OUT #define BUTTON BIT3#define BUTTON_OUT P1OUT#define BUTTON_DIR P1DIR#define BUTTON_IN P1IN#define BUTTON_IE P1IE#define BUTTON_IES P1IES#define BUTTON_IFG P1IFG#define BUTTON_REN P1REN#define TXD BIT1 / TXD on P1.1#define RXD BIT2 / RXD on P1.2#define APP_STANDBY_MODE 0#define APP_APPLICATION_MODE 1#define TIMER_