当前位置：网站首页>Teach you how to configure S2E as the working mode of TCP client through MCU

Teach you how to configure S2E as the working mode of TCP client through MCU

2022-07-25 11:42:00 【WIZnet】

In the last two articles, we talked about passing MCU To configure S2E by UDP、TCP Server Working mode of ”, I believe the partners have been right S2E I have learned some basic functions of , Now let's make persistent efforts 、 Let's go one step further ：

First of all, let's get to know MCU And S2E Wiring mode ：

1、 Wiring way ：

2、 Routine description ：

open “ adopt MCU To configure S2E by TCP Client routine ”, The first part of the main program TIM3_Init(); Is to set a time timer for frame interruption , This is because of the routine MCU The serial port of is received through frame interrupt AT Command configuration S2E Of the data returned after .

The second part USARTX_Init(); initialization MCU Serial port used , Here we use USART1_Config(); yes printf function , Used to view debugging information .USART2_Config(); Used for configuration S2E, It should be noted that the configuration parameters of the serial port should be the same as S2E The serial port configuration parameters of are consistent , Otherwise, the configuration fails .

The third part is... In the main cycle TCP_Client_Mode(); Used for configuration S2E by TCP Client Pattern .S2E Of AT The list of commands is detailed in each S2E User manual of model AT The command chapter introduces . Configuration is successful , Serial printing “TCP Client Config Success!”, Failed to configure serial port printing “TCP Client Config Fail!”.

01 /****************************************************

02 Function name ：TCP_Client_Mode

03 Shape parameter ： nothing

04 Return value ： nothing

05 The functionality ： Send through serial port AT Command configuration S2E modular

06 ****************************************************/

07 volatileuint8_t SendFlag=0;

09 void TCP_Client_Mode(void)

10 {

11 uint8_t RecvFlag=1;

12 char *state;

13 switch (SendFlag) {

14 case 0: {

15 Usart_Send(USART2,"AT\r\n"); // Terminal detection command

16 while (RecvFlag) {

17 if (RX2_Point & FRAME_LEN) {

18 // If data is received

19 state=strstr((char *)RecvBuff,"OK");

20 // Judge whether there is “OK”

21 if (state!=NULL) { // Yes

22 RX2_Point=0;

23 // The receive buffer pointer is set to zero

24 RecvFlag=0;

25 // Receive Peugeot position zero

26 SendFlag=1; // Send flag position zero

27 printf("Recv:%s\r\n",RecvBuff);

28 memset(RecvBuff,0,RECV_LEN);

29 // Receive cache reset

30 } else { // nothing

31 SendFlag=100; // Configuration failed

32 RecvFlag=0;

33 }

34 }

35 }

36 }

37 break;

38 case 1: {

39 Usart_Send(USART2,"AT+ECHO=0\r\n");

40 // Turn on （1）/ close （0） Echo command

41 RecvFlag=1;

42 while (RecvFlag) {

43 if (RX2_Point & FRAME_LEN) {

44 state=strstr((char *)RecvBuff,"OK");

45 if (state!=NULL) {

46 RX2_Point=0;

47 RecvFlag=0;

48 SendFlag=2;

49 printf("Recv:%s\r\n",RecvBuff);

50 memset(RecvBuff,0,RECV_LEN);

51 } else {

52 SendFlag=100;

53 RecvFlag=0;

54 }

55 }

56 }

57 }

58 break;

59 case 2: {

60 Usart_Send(USART2,"AT+C1_OP=1\r\n"); // Configure to TCP

61 Client Mode command

62 RecvFlag=1;

63 while (RecvFlag) {

64 if (RX2_Point & FRAME_LEN) {

65 state=strstr((char *)RecvBuff,"OK");

66 if (state!=NULL) {

67 RX2_Point=0;

68 RecvFlag=0;

69 SendFlag=3;

70 printf("Recv:%s\r\n",RecvBuff);

71 memset(RecvBuff,0,RECV_LEN);

72 } else {

73 SendFlag=100;

74 RecvFlag=0;

75 }

76 }

77 }

78 }

79 break;

80 case 3: {

81 Usart_Send(USART2,"AT+IP_MODE=1\r\n");

82 // To configure DHCP Mode command

83 RecvFlag=1;

84 while (RecvFlag) {

85 if (RX2_Point & FRAME_LEN) {

86 state=strstr((char *)RecvBuff,"OK");

87 if (state!=NULL) {

88 RX2_Point=0;

89 RecvFlag=0;

90 SendFlag=4;

91 printf("Recv:%s\r\n",RecvBuff);

92 memset(RecvBuff,0,RECV_LEN);

93 } else {

94 SendFlag=100;

95 RecvFlag=0;

96 }

97 }

98 }

99 }

100 break;

101 case 4: {

102 Usart_Send(USART2,"AT+C1_PORT=5000\r\n");

103 // To configure S2E The local port number of

104 RecvFlag=1;

105 while (RecvFlag) {

106 if (RX2_Point & FRAME_LEN) {

107 state=strstr((char *)RecvBuff,"OK");

108 if (state!=NULL) {

109 RX2_Point=0;

110 RecvFlag=0;

111 SendFlag=5;

112 printf("Recv:%s\r\n",RecvBuff);

113 memset(RecvBuff,0,RECV_LEN);

114 } else {

115 SendFlag=100;

116 RecvFlag=0;

117 }

118 }

119 }

120 }

121 break;

122 case 5: {

123 Usart_Send(USART2,"AT+C1_CLI_IP1=192.168.1.109\r\n");

124 // Configure the configuration of the remote server IP Address

125 RecvFlag=1;

126 while (RecvFlag) {

127 if (RX2_Point & FRAME_LEN) {

128 state=strstr((char *)RecvBuff,"OK");

129 if (state!=NULL) {

130 RX2_Point=0;

131 RecvFlag=0;

132 SendFlag=6;

133 printf("Recv:%s\r\n",RecvBuff);

134 memset(RecvBuff,0,RECV_LEN);

135 } else {

136 SendFlag=100;

137 RecvFlag=0;

138 }

139 }

140 }

141 }

142 break;

143 case 6: {

144 Usart_Send(USART2,"AT+C1_CLI_PP1=5000\r\n");

145 // Configure the port number of the remote server

146 RecvFlag=1;

147 while (RecvFlag) {

148 if (RX2_Point & FRAME_LEN) {

149 state=strstr((char *)RecvBuff,"OK");

150 if (state!=NULL) {

151 RX2_Point=0;

152 RecvFlag=0;

153 SendFlag=7;

154 printf("Recv:%s\r\n",RecvBuff);

155 memset(RecvBuff,0,RECV_LEN);

156 } else {

157 SendFlag=100;

158 RecvFlag=0;

159 }

160 }

161 }

162 }

163 break;

164 case 7: {

165 Usart_Send(USART2,"AT+START_MODE=0\r\n");

166 // Configure the next power on startup mode （0-AT Pattern ,1-

167 Data patterns ）

168 RecvFlag=1;

169 while (RecvFlag) {

170 if (RX2_Point & FRAME_LEN) {

171 state=strstr((char *)RecvBuff,"OK");

172 if (state!=NULL) {

173 RX2_Point=0;

174 RecvFlag=0;

175 SendFlag=8;

176 printf("Recv:%s\r\n",RecvBuff);

177 memset(RecvBuff,0,RECV_LEN);

178 } else {

179 SendFlag=100;

180 RecvFlag=0;

181 }

182 }

183 }

184 }

185 break;

186 case 8: {

187 Usart_Send(USART2,"AT+EXIT\r\n");

188 // Save the configuration and enter data mode

189 RecvFlag=1;

190 while (RecvFlag) {

191 if (RX2_Point & FRAME_LEN) {

192 state=strstr((char *)RecvBuff,"OK");

193 if (state!=NULL) {

194 RX2_Point=0;

195 RecvFlag=0;

196 SendFlag=99;

197 printf("Recv:%s\r\n",RecvBuff);

198 memset(RecvBuff,0,RECV_LEN);

199 } else {

200 SendFlag=100;

201 RecvFlag=0;

202 }

203 }

204 }

205 }

206 break;

207 case 99: {

208 printf("TCP Client Config Success!\r\n");

209 Config_OK=1;

210 }

211 default:

212 RecvFlag=100;

213 break;

214 case 100: {

215 printf("TCP Client Config Fail!\r\n");

216 Config_OK=1;

217 }

218 break;

219 }

220 }

W5500S2E-S1 It is an industrial serial port to Ethernet module , Supports multiple baud rates , from 1.2Kbps to 1.152Mbps. Adopted WIZnet Company hardware TCP/IP Protocol Ethernet chip W5500. It's faster 、 A more stable 、 Safer Ethernet solutions .

WIZnet Official website ：http://www.iwiznet.cn/

WIZnet Official technical service platform （Q Group ）：595547972

More Internet of things applications , Focus on WIZnet Official wechat ：