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‎LICENSE

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Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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‎README.md

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# AT-MODULE
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Use AT command to control the module.
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## AT-MODULE设计前言
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在单片机日常开发中，经常需要使用一些AT指令的模块，所以一个合适的程序框架是必要基础。
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## AT-MODULE设计理念
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## AT-MODULE使用示例
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## [博客主页](https://blog.maxiang.vip/)

‎at_module.c

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/*
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* Copyright (c) 2022, smartmx <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-08-22 smartmx the first version
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*
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*/
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#include "at_module.h"
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void at_datahandler_send_data_to_process(at_module_process_t *head_process, at_module_data_t *rec_data)
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{
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at_module_process_t *data_send_to_process_temp = head_process;
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rec_data->state = AT_MODULE_REC_STATE_HANDLING;
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if (data_send_to_process_temp == NULL) /* 头结点不可为空 */
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{
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return;
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}
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do
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{
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if(data_send_to_process_temp->dataHandler != NULL)
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{
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data_send_to_process_temp->dataHandler(rec_data); /* 调用不同进程的dataHandler */
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}
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data_send_to_process_temp = data_send_to_process_temp->next_process;
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}
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while ((data_send_to_process_temp != NULL) && (rec_data->data_rec_index != 0) && (rec_data->state == AT_MODULE_REC_STATE_HANDLING)); //直到进程链表结束
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/* 没有线程认领数据，丢弃 */
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if (rec_data->state == AT_MODULE_REC_STATE_HANDLING)
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{
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rec_data->data_rec_index = 0;
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rec_data->state = AT_MODULE_REC_STATE_WAIT_DATA;
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}
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}
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void at_datahandler_add_process(at_module_process_t *head_process, at_module_process_t *wait_for_add)
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{
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at_module_process_t *add_process_temp = head_process;
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if (head_process == NULL) /* 头结点不可为空 */
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{
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return;
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}
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while ((add_process_temp->next_process) != NULL)
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{
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add_process_temp = add_process_temp->next_process;
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}
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add_process_temp->next_process = wait_for_add;
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wait_for_add->prev_process = add_process_temp;
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wait_for_add->next_process = NULL;
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}
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void at_datahandler_delete_process(at_module_process_t *wait_for_delete) /* 头结点不可删除。 */
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{
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if (wait_for_delete->prev_process == NULL)
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{
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/* 无上一个结点，为NULL，此节点不在链表中，或者为头结点。直接返回。 */
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return;
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}
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wait_for_delete->prev_process->next_process = wait_for_delete->next_process; /* 解绑上一个节点 */
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if (wait_for_delete->next_process != NULL)
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{
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wait_for_delete->next_process->prev_process = wait_for_delete->prev_process; /* 解绑下一个节点 */
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}
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wait_for_delete->prev_process = NULL;
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wait_for_delete->next_process = NULL;
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}
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/*
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* 函数功能：在字符串中查找另一个字符串
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* 参数1：源字符串首地址
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* 参数2：源字符串长度
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* 参数3: 待查找字符串首地址
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* 参数4：待查找字符串长度
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* 参数5：最多查找到开始的几个字符
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* 参数6：查找的方向，从前还是从后
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* 返回值：出现的位置，返回0xffff则说明没有找到。
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*/
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__HIGH_CODE
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uint16_t at_buffer_match_searcher(unsigned char *det, uint16_t det_len, unsigned char *part, uint16_t part_len, uint8_t max_len, uint8_t direction)
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{
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uint16_t i, j;
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if (det_len >= part_len) /* 比较长度 */
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{
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if (direction == 1)
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{
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for (i = 0; i <= det_len - part_len; i++) /* 从源字符串长度开始查找 */
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{
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if (det[i] == part[0])
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{
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for (j = 1; j < part_len; j++)
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{
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if (det[i + j] != part[j]) /* 一一比对 */
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{
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break;
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}
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}
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if (j == part_len) /* 匹配成功 */
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{
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return i; /* 返回det中查找到part的的字符位置 */
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}
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}
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if(i >= max_len)
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{
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break;
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}
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}
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}
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else if (direction == 0)
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{
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/* 等于0，反向 */
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if((det_len - part_len) < max_len)
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{
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max_len = 0;
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}
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else
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{
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max_len = det_len - part_len - max_len;
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}
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for (i = det_len - part_len; i >= 0; i--) /* 从源字符串长度开始查找 */
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{
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if (det[i] == part[0])
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{
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for (j = 1; j < part_len; j++)
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{
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if (det[i + j] != part[j]) /* 一一比对 */
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{
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break;
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}
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}
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if (j == part_len) /* 匹配成功 */
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{
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return i; /* 返回det中查找到part的的字符位置 */
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}
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}
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if(i <= max_len)
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{
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break;
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}
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}
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}
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}
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return 0XFFFF; /* 这是不可能的值。因为part_len在控制中至少2个字节 */
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}

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