drosophila

Hi, Thank you for your help. I just tried to use EEPROM and it solved my problem.

Hi all! I started a tcp server on my TM4C1294. At the beginning, my code works. Then I get new ip, dns, gateway and subnet mask from serial port. I want to restart my server with the new ip,dns,gw and subnet values. For this reason, I tried the below code... Unfortunately, the program stuck in "Ethernet.begin". Is there anything in order to restart the ethernet and tcp server with new ip? //LIBRARIES #include <stdint.h> #include <stdbool.h> //#include "inc/hw_memmap.h" //#include "driverlib/debug.h" #include <Ethernet.h> #include <Wire.h> //#include "driverlib/pin_map.h" //#include "driverlib/gpio.h" //#include "driverlib/sysctl.h" //#include "driverlib/i2c.h" //#include "inc/hw_i2c.h" //#include "inc/hw_types.h" ////#include "XIO.h" //#include "string.h" byte mac[] = { 0x00, 0x1A, 0xB6, 0x02, 0xF0, 0x80 }; int PortNumber = 1213; byte ip_arr[] = { 77, 99, 0, 66 }; byte dns_arr[] = { 77, 99, 1, 1 }; byte gw_arr[] = { 77, 99, 1, 1 }; byte mask_arr[] = { 255, 0, 0, 0 }; EthernetServer server = EthernetServer(PortNumber); void setup() { Serial.begin(19200); /*ip = ip_arr; dns = dns_arr; gw = gw_arr; mask = mask_arr;*/ Ethernet.begin(mac, ip_arr, dns_arr, gw_arr, mask_arr); server.begin(); delay(100); } int serial_read_data[25]; int serial_index = 0; void get_serial_data(String serial_data) { unsigned char incomingByte; char *sr_data = &serial_data[0]; char str[40]; //char *tab2 = new char [serial_data.length()+1]; byte ip1 = 0; byte ip2 = 0; byte ip3 = 0; byte ip4 = 0; if(serial_data == "ver" ) { Serial.println("\nVer: 1.01"); } else if(serial_data == "show" ) { Serial.print("IP = "); Serial.println(Ethernet.localIP()); Serial.print("Subnet = "); Serial.println(Ethernet.subnetMask()); Serial.print("Gateway = "); Serial.println(Ethernet.gatewayIP()); Serial.print("Port = "); Serial.println(PortNumber, DEC); } else if(serial_data == "U" ) { //Ethernet.stop(); Serial.println("\nserver rebooting-1"); server.available().stop(); Serial.println("\nserver rebooting-2"); delay(100); //try this!!!! SysCtlReset(); delay(100); Ethernet.begin(mac, ip_arr, dns_arr, gw_arr, mask_arr);//STUCKS HERE!!!!!!!!! delay(100); Serial.println("\nserver rebooting-3"); server.begin(); Serial.println("\n server rebooted..."); Serial.print("IP = "); Serial.println(Ethernet.localIP()); Serial.print("Subnet = "); Serial.println(Ethernet.subnetMask()); Serial.print("Gateway = "); Serial.println(Ethernet.gatewayIP()); Serial.print("Port = "); Serial.println(PortNumber, DEC); } else { //char serial_data[serial_data.length()]; //strcpy (tab2, serial_data.c_str()); memset(str, '\0', sizeof(str)); strncpy ( str, sr_data, 3); if(strcmp(str, "IP=") == 0) { Serial.println("\nIP Changing!!"); ip1 = 100 * (sr_data[3] - 0x30) + 10 * (sr_data[4] - 0x30) + (sr_data[5] - 0x30); ip2 = 100 * (sr_data[7] - 0x30) + 10 * (sr_data[8] - 0x30) + (sr_data[9] - 0x30); ip3 = 100 * (sr_data[11] - 0x30) + 10 * (sr_data[12] - 0x30) + (sr_data[13] - 0x30); ip4 = 100 * (sr_data[15] - 0x30) + 10 * (sr_data[16] - 0x30) + (sr_data[17] - 0x30); Serial.println(ip1, DEC); Serial.println(ip2, DEC); Serial.println(ip3, DEC); Serial.println(ip4, DEC); ip_arr[0] = ip1; ip_arr[1] = ip2; ip_arr[2] = ip3; ip_arr[3] = ip4; } else if(strcmp(str, "SN=") == 0) { Serial.println("\nSubnet Changing!"); ip1 = 100 * (sr_data[3] - 0x30) + 10 * (sr_data[4] - 0x30) + (sr_data[5] - 0x30); ip2 = 100 * (sr_data[7] - 0x30) + 10 * (sr_data[8] - 0x30) + (sr_data[9] - 0x30); ip3 = 100 * (sr_data[11] - 0x30) + 10 * (sr_data[12] - 0x30) + (sr_data[13] - 0x30); ip4 = 100 * (sr_data[15] - 0x30) + 10 * (sr_data[16] - 0x30) + (sr_data[17] - 0x30); Serial.println(ip1, DEC); Serial.println(ip2, DEC); Serial.println(ip3, DEC); Serial.println(ip4, DEC); mask_arr[0] = ip1; mask_arr[1] = ip2; mask_arr[2] = ip3; mask_arr[3] = ip4; } else if(strcmp(str, "GW=") == 0) { Serial.println("\nGW Changing!!"); ip1 = 100 * (sr_data[3] - 0x30) + 10 * (sr_data[4] - 0x30) + (sr_data[5] - 0x30); ip2 = 100 * (sr_data[7] - 0x30) + 10 * (sr_data[8] - 0x30) + (sr_data[9] - 0x30); ip3 = 100 * (sr_data[11] - 0x30) + 10 * (sr_data[12] - 0x30) + (sr_data[13] - 0x30); ip4 = 100 * (sr_data[15] - 0x30) + 10 * (sr_data[16] - 0x30) + (sr_data[17] - 0x30); Serial.println(ip1, DEC); Serial.println(ip2, DEC); Serial.println(ip3, DEC); Serial.println(ip4, DEC); gw_arr[0] = ip1; gw_arr[1] = ip2; gw_arr[2] = ip3; gw_arr[3] = ip4; } else { strncpy ( str, sr_data, 5); if(strcmp(str, "Port=") == 0) { Serial.println("\nPort Changing!!"); PortNumber = 10000 * (sr_data[5] - 0x30) + 1000 * (sr_data[6] - 0x30) + 100 * (sr_data[7] - 0x30) + 10 * (sr_data[8] - 0x30) + (sr_data[9] - 0x30); Serial.println(PortNumber, DEC); } } } } //int i=0; void loop() { /* Serial.println("\nI2C SEND"); delay(100); uint32_t pui32DataTx[3]; I2CMasterSlaveAddrSet(I2C0_BASE, 0x20, false); Serial.println("\nMASTER SLAVE ADdRES SET"); delay(100); pui32DataTx[0] = 0x80 | 0x08; pui32DataTx[1] = 0x01; int i; for(i = 0; i < 2; i++){ I2CMasterDataPut(I2C0_BASE, pui32DataTx[i]); Serial.println("\ncount: "); Serial.println(i); I2CMasterControl(I2C0_BASE, I2C_MASTER_CMD_SINGLE_SEND); delay(100); while(I2CMasterBusBusy(I2C0_BASE)); //Loop until the bus is no longer busy Serial.println("\neheheef: "); Serial.println(i); }*/ if (Serial.available() > 0) { // read the incoming byte: String incomingByte = Serial.readString(); // say what you got: get_serial_data(incomingByte); } }