linux.zip_linux_嵌入式_摩尔斯

#include "led_app.h" #include "buz_app.h" #include "keys_app.h" #include "uart.h" pthread_mutex_t mutex; extern char buffer_uart3[BUFFER_SIZE]; int flag_buz = 0; /************************** 函数定义 ********************************** * 函数名称: void dot(void) * 函数功能: dot, morse code * 函数说明: ***********************************************************************/ void dot(void) { buz_ctl(BUZ1_ON); usleep(400000); } /************************** 函数定义 ********************************** * 函数名称: void dash(void) * 函数功能: dash, morse code * 函数说明: ***********************************************************************/ void dash(void) { buz_ctl(BUZ1_ON); usleep(1200000); } /************************** 函数定义 ********************************** * 函数名称: void space(int num) * 函数功能: space, morse code * 函数说明: ***********************************************************************/ void space(int num) { int i; buz_ctl(BUZ1_OFF); for(i=0;i<num;i++) { usleep(400000); } } /************************** 函数定义 ********************************** * 函数名称: void * thd_func1(void) * 函数功能: 线程1 * 函数说明: ***********************************************************************/ void * thd_func1(void) { int ret,a; for(;;) { usleep(100000); //printf(1); //pthread_mutex_lock(&mutex); /*获取互斥锁*/ /*if(keys_getval()==0x01) a=0x01; if(keys_getval()==0x03) a=0x03;*/ if(keys_getval()==0x01) { buz_ctl(BUZ1_ON); led_ctl(LED1_ON); usleep(100000); led_ctl(LED1_OFF); usleep(100000); led_ctl(LED2_ON); usleep(100000); led_ctl(LED2_OFF); usleep(100000); led_ctl(LED3_ON); usleep(100000); led_ctl(LED3_OFF); usleep(100000); led_ctl(LED4_ON); usleep(100000); led_ctl(LED4_OFF); buz_ctl(BUZ1_OFF); usleep(100000); } if(keys_getval()==0x03) { usleep(100000); buz_ctl(BUZ1_ON); led_ctl(LED1_ON); led_ctl(LED2_ON); led_ctl(LED3_ON); led_ctl(LED4_ON); usleep(100000); buz_ctl(BUZ1_OFF); led_ctl(LED1_OFF); led_ctl(LED2_OFF); led_ctl(LED3_OFF); led_ctl(LED4_OFF); } //pthread_mutex_unlock(&mutex);/*解除互斥锁*/ /*if(uart_rcvcmd() > 0) { if(strcmp(buffer_uart3,"LED1_ON")==0) { uart_sndcmd(buffer_uart3); flag_buz = 1; } if(strcmp(buffer_uart3,"LED1_OFF")==0) { uart_sndcmd(buffer_uart3); flag_buz = 2; } } */ } pthread_exit(NULL); } void * thd_func2(void) { //printf("2"); for(;;) { usleep(1000000); pthread_mutex_lock(&mutex); /*获取互斥锁*/ /*if(flag_buz==1) { led_ctl(LED1_ON); } else if(flag_buz==2) { led_ctl(LED1_OFF); } */ if(uart_rcvcmd() > 0) { if(strcmp(buffer_uart3,"LED1_ON")==0) { uart_sndcmd(buffer_uart3); //flag_buz = 1; led_ctl(LED1_ON); } if(strcmp(buffer_uart3,"LED1_OFF")==0) { uart_sndcmd(buffer_uart3); //flag_buz = 2; led_ctl(LED1_OFF); } } pthread_mutex_unlock(&mutex);/*解除互斥锁*/ } pthread_exit(NULL); } void * thd_func3(void) { int ret; //printf("3"); for(;;) { usleep(100000); pthread_mutex_lock(&mutex); /*获取互斥锁*/ if(uart_rcvcmd() > 0) { if(strcmp(buffer_uart3,"SOS")==0) { uart_sndcmd(buffer_uart3); //flag_buz = 1; dot(); space(1); dot(); space(1); dot(); space(3); dash(); space(1); dash(); space(1); dash(); space(3); dot(); space(1); dot(); space(1); dot(); space(1); } if(strcmp(buffer_uart3,"OFF")==0) { uart_sndcmd(buffer_uart3); //flag_buz = 2; buz_ctl(BUZ1_OFF); } } pthread_mutex_unlock(&mutex);/*解除互斥锁*/ } pthread_exit(NULL); } /************************** 函数定义 ********************************** * 函数名称: int main(int argc, char** argv) * 函数功能: 主函数，系统初始化，线程创建，按键扫描， * 函数说明: exam template for 20190618 ***********************************************************************/ int main(int argc, char** argv) { int32_t keyval= 0; int led1_cnt=0,led2_cnt=0,led3_cnt=0,led4_cnt=0; pthread_t th1_id,th2_id,th3_id;/*线程ID*/ pthread_attr_t thd_attr;/*线程参数*/ struct sched_param param; int i, ret; led_init(); /*初始化LED*/ buz_init(); /*初始化buz*/ keys_init(); if(uart_init(1,115200, 8, 'N', 1)<0) { perror("open_port"); } pthread_mutex_init(&mutex, NULL);/*始化*/ /*线程1 创建*/ pthread_attr_init(&thd_attr); pthread_attr_setschedpolicy(&thd_attr, SCHED_RR); param.sched_priority = 98; /*设置线程优先级范围: 1--99,数值越大优先级越高*/ pthread_attr_setschedparam(&thd_attr, &param); ret = pthread_create(&th1_id,NULL,(void *)thd_func1,NULL); if(ret != 0) { printf("Create pthread1 error!\n");/*线程创建失败，打印相应的错误信息*/ exit(1); } /*线程2 创建*/ pthread_attr_init(&thd_attr); pthread_attr_setschedpolicy(&thd_attr, SCHED_RR); param.sched_priority = 97; /*设置线程优先级范围: 1--99,数值越大优先级越高*/ pthread_attr_setschedparam(&thd_attr, &param); ret = pthread_create(&th2_id,NULL,(void *)thd_func2,NULL); if(ret != 0) { printf("Create pthread2 error!\n");/*线程创建失败，打印相应的错误信息*/ exit(1); } //线程3 创建 pthread_attr_init(&thd_attr); pthread_attr_setschedpolicy(&thd_attr, SCHED_RR); param.sched_priority = 96; /*设置线程优先级范围: 1--99,数值越大优先级越高*/ pthread_attr_setschedparam(&thd_attr, &param); ret = pthread_create(&th3_id,NULL,(void *)thd_func3,NULL); if(ret != 0) { printf("Create pthread3 error!\n");/*线程创建失败，打印相应的错误信息*/ exit(1); } pthread_join(th1_id,NULL);/*以阻塞的方式等待thread指定的线程结束*/ pthread_join(th2_id,NULL);/*以阻塞的方式等待thread指定的线程结束*/ pthread_join(th3_id,NULL);/*以阻塞的方式等待thread指定的线程结束*/ pthread_mutex_destroy(&mutex);/*注销互斥锁*/ return 0; } /************************** 文件结束 ******************************/