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157 lines
3.3 KiB
157 lines
3.3 KiB
/*
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* bsp_UDP.c
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*
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* Created on: Aug 13, 2024
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* Author: akeguo
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*/
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#include "stm32h7xx_hal.h"
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#include "lwip.h"
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#include "udp.h"
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#include "string.h"
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#include "bsp_UDP.h"
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/* 定义端口号 */
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#define UDP_REMOTE_PORT 8881 /* 远端端口 */
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#define UDP_LOCAL_PORT 8880 /* 本地端口 */
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#define UDP_Send_LOCAL_PORT 9880 /* 本地端口 */
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#define UDP_Printf_PORT 8881
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#define UDP_Long_PORT 8882
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#define UDP_UpdataPos_PORT 8883
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unsigned char received_data[1000];
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/* udp控制块 */
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static struct udp_pcb *upcb;
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static struct udp_pcb *upcb_send;
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ip_addr_t serverIP;
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/******************************************************************************
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* 描述 : 接收回调函数
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* 参数 : -
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* 返回 : 无
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******************************************************************************/
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static void udp_receive_callback(void *arg, struct udp_pcb *upcb,
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struct pbuf *p, const ip_addr_t *addr, u16_t port)
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{
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if (p != NULL)
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{
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memcpy(received_data, p->payload, p->len);
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//err_t t = udp_sendto(upcb_send, p, &serverIP, 8000);
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pbuf_free(p);
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} else
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{
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pbuf_free(p);
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}
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}
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//char UDPprintf[100];
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void udp_printf_CmdBack(char *pData)
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{
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struct pbuf *p;
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/* 分配缓冲区空间 */
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p = pbuf_alloc(PBUF_TRANSPORT, strlen(pData), PBUF_POOL);
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if (p != NULL)
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{
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/* 填充缓冲区数据 */
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pbuf_take(p, pData, strlen(pData));
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/* 发送udp数据 */
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udp_send(upcb, p);
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//err_t t = udp_sendto(upcb, p, &serverIP, UDP_Printf_PORT);
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/* 释放缓冲区空间 */
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pbuf_free(p);
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}
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}
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void GF_UDP_Send(uint8_t *pData, uint16_t Size, uint16_t UDP_port)
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{
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struct pbuf *p;
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/* 分配缓冲区空间 */
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p = pbuf_alloc(PBUF_TRANSPORT, Size, PBUF_POOL);
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if (p != NULL)
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{
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/* 填充缓冲区数据 */
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pbuf_take(p, pData, Size);
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/* 发送udp数据 */
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//udp_send(upcb, p);
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err_t t = udp_sendto(upcb, p, &serverIP, UDP_port);
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/* 释放缓冲区空间 */
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pbuf_free(p);
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}
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}
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void GF_UpdataPos_Send(uint8_t *pData, uint32_t Size)
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{
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GF_UDP_Send(pData, Size, UDP_UpdataPos_PORT);
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}
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/******************************************************************************
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* 描述 : 创建udp客户端
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* 参数 : 无
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* 返回 : 无
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******************************************************************************/
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void udp_client_init(void)
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{
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err_t err;
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IP4_ADDR(&serverIP, 192, 168, 1, 102);
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/* 创建udp控制块 */
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upcb = udp_new();
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if (upcb != NULL)
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{
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/* 配置本地端口 */
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upcb->local_port = UDP_LOCAL_PORT;
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/* 配置服务器IP和端口 */
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err= udp_connect(upcb, &serverIP, UDP_REMOTE_PORT);
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// err = udp_bind(upcb, IP_ADDR_ANY, UDP_LOCAL_PORT);
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upcb->so_options |= SOF_BROADCAST;
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if (err == ERR_OK)
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{
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/* 注册接收回调函数 */
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udp_recv(upcb, udp_receive_callback, NULL);
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/* 发送udp数据 */
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//printf("udp client connected\r\n");
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} else
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{
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udp_remove(upcb);
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//printf("can not connect udp pcb\r\n");
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}
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}
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// upcb_send = udp_new();
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//
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// if (upcb_send != NULL)
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// {
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// /* 配置本地端口 */
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// upcb_send->local_port = UDP_Send_LOCAL_PORT;
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//
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// /* 配置服务器IP和端口 */
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// upcb_send->so_options |= SOF_BROADCAST;
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// err = udp_bind(upcb_send, IP_ADDR_ANY, UDP_Send_LOCAL_PORT);
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// if (err == ERR_OK)
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// {
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//
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// } else
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// {
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// udp_remove(upcb_send);
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//
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// }
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// }
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}
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/******************************** END OF FILE ********************************/
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