【OK210试用体验】项目篇+物联仓库管理系统+前端数据中心 +控制M0命令发送模块 09

2015-10-24 10:33:49

himol ( 楼主 ) 2015-10-24 10:33:49 只看该作者 3679 | 0 倒序浏览

第九节M0命令发送控制

1. 功能描述

发送接收到的M0控制命令.

2. 数据描述

3. 流程图

M0命令控制.png (19.02 KB, 下载次数: 4)

下载附件保存到相册

2015-10-24 10:31 上传

4. 代码

#include "data_global.h"

extern unsigned char dev_uart_mask;

extern int dev_uart_fd;

extern pthread_cond_t cond_uart_cmd;

extern pthread_mutex_t mutex_uart_cmd;

extern dota_cache_list m0_cache_head, m0_cache_tail;

void *pthread_uart_cmd (void *arg)

{

unsigned char *uart_p = NULL;

dota_cache_list uart_cache_p = NULL;

printf ("pthread_uart_cmd is okn");

while (1)

{

pthread_mutex_lock (&mutex_uart_cmd);

pthread_cond_wait (&cond_uart_cmd, &mutex_uart_cmd);

while ((uart_cache_p = GetCacheNode (m0_cache_head, &m0_cache_tail)) != NULL)

{

pthread_mutex_unlock (&mutex_uart_cmd);

uart_p = (unsigned char *)uart_cache_p->data;

dev_uart_mask = *uart_p;

write (dev_uart_fd, &dev_uart_mask, 1);

free (uart_p);

uart_p = NULL;

free (uart_cache_p);

uart_cache_p = NULL;

usleep (200000);

pthread_mutex_lock (&mutex_uart_cmd);

}

pthread_mutex_unlock (&mutex_uart_cmd);

}

【OK210试用体验】项目篇+物联仓库管理系统+前端数据中心 +控制M0命令发送模块 09 - 在线问答 - 电子技术论坛 - 最好最受欢迎电子论坛!