LaunchPad(MSP430G2553)官方例程汉语注释

1、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, 软件切换的p1.0，/ msp430g2xx2/ -/ /| xin|-/ | | |/ -|rst xout|-/ | |/ | p1.0|-led/*#include void main(void)wdtctl = wdtpw + wdthold; /停止看门狗定时器if (calbc1_1mhz = 0xff | caldco_1mhz = 0xff)while(1);/如果校准常数擦除，捕获的cpu！/ configure b

2、asic clockbcsctl1 = calbc1_1mhz; /设置范围dcoctl = caldco_1mhz;/集检查官步+调制bcsctl3 |= lfxt1s_2;/ 设置lfxt1p1dir = bit6; /p1.6输出（绿色led）p1out = 0; / led 关ifg1 &= ofifg; /清除oscfault标志bcsctl2 |=selm_1 + divm_0; /设置的mclkfor(;)p1out = bit6; / p1.6输出（绿色led）_delay_cycles(100);p1out = 0; /绿色led关闭_delay_cycles(5000);2

3、./*/ launchpad lab3 - software port interrupt service软件端口的中断服务/ msp430g2xx2/ -/ /| xin|-/ | | |/ -|rst xout|-/ /| | |/ -o-|p1.3 p1.0|-led/ |/*#include void main(void)wdtctl = wdtpw + wdthold; /停止看门狗定时器 p1dir |= bit0; /设定的p1.0输出方向p1ies |= bit3; / p1.3可高/低边p1ifg &= bit3; / p1.3 ifg 清除p1ie |= bit3; / p

4、1.3可中断启用_bis_sr(lpm4_bits + gie); /进入lpm4中断/ port 1 interrupt service routine端口1中断服务程序#pragma vector=port1_vector_interrupt void port_1(void)if (p1ifg & bit3)p1out = bit0; / p1.0切换p1ifg &= bit3; / p1.3 ifg清除3./*/ launchpad lab5 - adc10, sample a10 temp and convert to oc and of adc10，样品a10的温度和转换/ msp

5、430g2452/ -/ /| 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; / 选择adc通道温度传感器 adc10ctl0 = sref_1 + adc10sht_3 + refon + adc10on + adc10ie;/选择adc

6、号源 _enable_interrupt(); /使能中断。 taccr0 = 30; / delay to allow ref to settle延迟让价解决 tacctl0 |= ccie; /比较模式中断。 tactl = tassel_2 | mc_1; / taclk= smclk，最多的模式。 lpm0; /等待延迟。 tacctl0 &= ccie; /禁用定时器中断 _disable_interrupt(); while(1) adc10ctl0 |= enc + adc10sc; /采样和转换启动 _bis_sr_register(lpm0_bits + gie); / lp

7、m0与中断功能 / 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此设置断点 / adc10 inte

8、rrupt service routine#pragma vector=adc10_vector_interrupt void adc10_isr (void) _bic_sr_register_on_exit(lpm0_bits); /明确cpuoff位从0（sr）#pragma vector=timer0_a0_vector_interrupt void ta0_isr(void) tactl = 0; _bic_sr_register_on_exit(lpm0_bits); /明确cpuoff位从0（sr）4./*/ msp430f20xx演示 - 基本时钟，输出缓冲smclk，aclk

9、和mclk/10/ /说明：缓冲区aclk从p2.0，p1.4脚和mclk/10默认smclk（dco）/ / p1.5的。/ aclk= lfxt1= vlo的，个mclk= smclk=默认的dco/ / / /*安装辛xout之间的外部晶体需要aclk* / / msp430f20xx/ -/ /| xin|-/ | | | / -|rst xout|-/ | |/ | p1.4/smclk|-smclk = default dco/ | p1.5|-mclk/10 = dco/10/ | p1.0/aclk|-aclk = vlo/*#include unsigned char s;v

10、oid main(void) wdtctl = wdtpw +wdthold; / 关闭看门狗 bcsctl3 |= lfxt1s_2; / lfxt1 = vlo /dcoctl = 0; /bcsctl1 = calbc1_16mhz; /dcoctl = calbc1_16mhz; p1dir |= 0x31; / p1.0，和p1.4输出 p1sel |= 0x11; / p1.0，4 aclk/ vlo的，smclk/ dco输出 /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

11、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演示 - fll的内部运行，在8mhz检查官/说明：此程序演示设置内部dco运行/ /为8mhz由fll+自动校准。/ aclk= lfxt1=32768hz的，个mclk= smclk=检查官=（121+1）2aclk=7995392hz/ / / /*辛与xout之间的外部钟晶振需要aclk* / / msp430xg461x/ -/ /| xin|-/ | | |

12、 32khz/ -|rst xout|-/ | |/ | p1.1|- mclk = 8mhz/ | |/ | p1.5|- aclk = 32khz/ | |/*#include void main(void) wdtctl = wdtpw + wdthold; /停止看门狗定时器 fll_ctl0 |= dcoplus + xcap18pf; / dco+ set, 频率 = 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 mh

13、z p1dir = 0x22; / p1.1口和p1.5的输出方向 p1sel = 0x22; / p1.1口和p1.5的输出mclk和aclk while(1); /循环到此6./*/ msp430xg46x演示 - flash在系统编程，复制世嘉segb/ / /说明：此程序首先擦除闪烁赛格a，那么它的增量/ /赛格一个值，然后擦除赛格b，然后复制赛格一个赛格b。/假设的mclk的550khz - 900khz的。/ / / /* nop指令集在主循环中断点，以避免强调的flash */ msp430xg461x/ -/ /| xin|-/ | | |/ -|rst xout|-/ | |

14、/*#include char value; / 8位值写段/ function prototypesvoid write_sega (char value);void copy_a2b (void);void main(void) wdtctl = wdtpw + wdthold; /停止看门狗定时器 fctl2 = fwkey + fssel0 + fn0; /的mclk/2闪存时序发生器 value = 0; /初始化值 while(1) /永远重复 write_sega(value+); /写段，增量值 copy_a2b(); / 复制段a到b _nop(); /此设置断点 void

15、write_sega (char value) char *flash_ptr; /闪存的指针 unsigned int i; flash_ptr = (char *) 0x1080; /初始化闪存的指针 fctl1 = fwkey + erase; /设置擦除位 fctl3 = fwkey; /清除锁定位 *flash_ptr = 0; /空写，擦除闪存段 fctl1 = fwkey + wrt; /为写操作的wrt位 for (i=0; i128; i+) *flash_ptr+ = value; /写入值闪烁 fctl1 = fwkey; /清除wrt的位 fctl3 = fwkey +

16、 lock; /设置锁定位void copy_a2b (void) char *flash_ptra; /段指针 char *flash_ptrb; / b段指针 unsigned int i; flash_ptra = (char *) 0x1080; /初始化闪存段a指针 flash_ptrb = (char *) 0x1000; /初始化闪存段b指针 fctl1 = fwkey + erase; /设置擦除位 fctl3 = fwkey; /清除锁定位 *flash_ptrb = 0; /空写，擦除闪存段b fctl1 = fwkey + wrt; /为写操作的wrt位 for (i=0

17、; iled/ |/*#include void main(void) wdtctl = wdtpw + wdthold; /停止看门狗 fll_ctl0 |= xcap14pf; /配置负载帽 p2dir = bit1; /设置p2.1为输出方向 p1ies = bit0; / h-l过渡 p1ie = bit0; /使能中断 _bis_sr(lpm4_bits + gie); / lpm4，使中断/ port 1 interrupt service routine端口1中断服务程序#pragma vector=port1_vector_interrupt void port1_isr (v

18、oid) unsigned volatile int i; for (i=10000; i0; i-); /防抖动延时 p1ifg &= bit0; /清除p1ifg if (p1in & 0x01) = 0) p2out = 0x02; /使用专用或切换p2.18./*/ msp430xg46x演示 - 软件p1.0口从lpm4中断/ / /说明：p1.0的高/低的过渡会引发p1_isr/ /切换p2.1。正常模式lpm40.1ua。 lpm4电流可测/ /与led删除所有未使用的p1.x/p2.x配置为输出或输入/ /拉高或低，确保p2.0的中断输入不浮动。/ aclk=32.768khz

19、的，个mclk= smclk=默认的dco/ msp430xg461x/ -/ /| |/ | | |/ -|rst |/ /| | |/ -o-|p1.0 p2.1|-led/ |/*#include void main(void) wdtctl = wdtpw + wdthold; /停止看门狗 fll_ctl0 |= xcap14pf; /配置负载帽 p2dir = bit1; /设置p2.1为输出方向 p1ies = bit0; / h-l过渡 p1ie = bit0; /使能中断 _bis_sr(lpm4_bits + gie); / lpm4，使中断/ port 1 interru

20、pt service routine端口1中断服务程序#pragma vector=port1_vector_interrupt void port1_isr (void) unsigned volatile int i; for (i=10000; i0; i-); /防抖动延时 p1ifg &= bit0; /清除p1ifg if (p1in & 0x01) = 0) p2out = 0x02; /使用专用或切换p2.19./*/ msp430xg46x演示 - usci_a0，uart isr的回声，检查官smclk115200/ /（修改后的代码示例“msp430xg46x_uscia

21、0_uart_01_115k.c”）/ /说明：回声一个接收到的字符，接收的isr使用。正常模式lpm0。/ / usci_a0 rx中断触发的tx回声。（01h009h）/1048576hz= 1048576/115200=9.1波特率分频器/ aclk= lfxt1=32768hz的，个mclk= smclk=默认的dco=32aclk=1048576hz/ / / /*辛与xout之间的外部钟晶振需要aclk* / / msp430fg4619/ -/ /| xin|-/ | | | 32khz/ -|rst xout|-/ | |/ | p2.5/uca0rxd|/*#include

22、msp430xg46x.hvoid main(void) volatile unsigned int i; wdtctl = wdtpw+wdthold; /停止看门狗 fll_ctl0 |= xcap14pf; /配置负载帽 do ifg1 &= ofifg; /清除oscfault标志 for (i = 0x47ff; i 0; i-); /标志设置时间 while (ifg1 & ofifg); / oscfault flag still set? p2sel |= 0x030; / p2.4,5 = usci_a0 rxd/txd uca0ctl1 |= ucssel_2; / smc

23、lk uca0br0 = 18;0x09; / 1mhz 115200 uca0br1 = 0;0x00; / 1mhz 115200 uca0mctl = 0;0x02; /调制 uca0ctl1 &= ucswrst; / *初始化usci状态机* ie2 |= uca0rxie; /启用usci_a0 rx中断 _bis_sr(lpm0_bits + gie); /进入lpm0，启用中断/ 回显rxed字符，确认tx缓冲区是准备先#pragma vector=usciab0rx_vector_interrupt void uscia0rx_isr (void) while(!(ifg2&

24、uca0txifg); uca0txbuf = uca0rxbuf; / tx - rxed character10./* msp-exp430g2-launchpad软件用户的应用体验* 1。设备开始在lpm3模式+闪烁的led显示设备是活着*后的第一个按钮记者，设备过渡到应用模式* 2。应用模式*+连续采样adc的温度传感器通道，比较的结果，对*初始值*+设为pwm基于测量adc偏移：红色的led积极偏移，绿* led为负偏移*通过timera的uart发送温度值到pc*+按钮按下 - 校准使用当前温度*发送字符“，通知pc机通过uart* #include msp430g2553.h#d

25、efine 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 / p1.2上的txd#define rxd bi

26、t2 /p1.2上的rxd#define app_standby_mode 0#define app_application_mode 1#define timer_pwm_mode 0 #define timer_uart_mode 1#define timer_pwm_period 2000 #define timer_pwm_offset 20#define temp_same 0#define temp_hot 1#define temp_cold 2#define temp_threshold 5 / conditions for 9600/4=2400 baud sw uart,

27、smclk = 1mhz#define bitime_5 0x05*4 / 0.5位长度+小调整#define bitime 13*4/0x0d #define uart_update_interval 1000unsigned char bitcnt;unsigned char applicationmode = app_standby_mode;unsigned char timermode = timer_pwm_mode;unsigned char tempmode;unsigned char calibrateupdate = 0;unsigned char temppolarity

28、 = temp_same;unsigned int txbyte; /*使用8值，采样adc值的移动平均滤波器*/ long tempmeasured8;unsigned char tempmeasuredposition=0;long tempaverage;long tempcalibrated, tempdifference; void initializeleds(void);void initializebutton(void);void preapplicationmode(void); /闪烁的led，等待按下按钮void configureadctempsensor(void)

29、;void configuretimerpwm(void);void configuretimeruart(void); void transmit(void);void initializeclocks(void);void main(void) unsigned int uartupdatetimer = uart_update_interval; unsigned char i; wdtctl = wdtpw + wdthold; /停止看门狗 initializeclocks(); initializebutton(); initializeleds(); preapplication

30、mode(); /闪烁发光二极管，等待按下按钮 /* application mode begins */ applicationmode = app_application_mode; configureadctempsensor(); configuretimerpwm(); _enable_interrupt(); /使能中断。 /* main application loop */ while(1) adc10ctl0 |= enc + adc10sc; /采样和转换启动 _bis_sr_register(cpuoff + gie); / lpm0与中断功能 /* 8个值的移动平均滤波

31、器，有些稳定采样的adc */ tempmeasuredtempmeasuredposition+ = adc10mem; if (tempmeasuredposition = 8) tempmeasuredposition = 0; tempaverage = 0; for (i = 0; i = 3; /除以8得到的平均 if (-uartupdatetimer = 0) | calibrateupdate ) configuretimeruart(); if (calibrateupdate) txbyte = 248; /具有高价值以外的字符 of temp range transmi

32、t(); calibrateupdate = 0; txbyte = (unsigned char)( (tempaverage - 630) * 761) / 1024 ); transmit(); uartupdatetimer = uart_update_interval; configuretimerpwm(); tempdifference = tempaverage - tempcalibrated; if (tempdifference temp_threshold) temppolarity = temp_hot; led_out &= led0; else temppolar

33、ity = temp_same; tacctl0 &= ccie; tacctl1 &= ccie; led_out &= (led0 + led1); if (temppolarity != temp_same) tempdifference = 3; tempdifference += timer_pwm_offset; taccr1 = ( (tempdifference) (timer_pwm_period-1) ? (tempdifference) : (timer_pwm_period-1) ); tacctl0 |= ccie; tacctl1 |= ccie; void preapplicationmode(void) led_dir |= led0 + led1;