Marcelo Rebonatto / Mbed 2 deprecated PMED_Tempo

Versão do protegemed que calcula o tempo em ms da fuga, calcula o numero de onverflow (valores muito baixo) e underflow (valores muito altos). Além disso, calcula um valor médio a partir dos valores capturados e não apenas pela fft.

Dependencies:   EthernetInterface mbed-rtos mbed

Codes/TelnetCommands/telnet_update.cpp@0:c64e1194230b, 2014-07-09 (annotated)

Committer:
rebonatto
Date:
Wed Jul 09 21:16:23 2014 +0000
Revision:
0:c64e1194230b
Vers?o do Protegemed com calculo de tempo de fuga, overflow, underflow e novo valor m?dio (manual).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rebonatto 0:c64e1194230b 1 #include "TelnetServer.h"
rebonatto 0:c64e1194230b 2
rebonatto 0:c64e1194230b 3
rebonatto 0:c64e1194230b 4 char *header_msg = "firmware update\r\n\r\n";
rebonatto 0:c64e1194230b 5 char *usage_msg = "Wrong arguments\r\nUsage: update <firmware filename>\r\n\r\n";
rebonatto 0:c64e1194230b 6 char *invalid_filename_msg = "Invalid filename. It must have at most 8 characters in the name and 3 in the extension\r\n\r\n";
rebonatto 0:c64e1194230b 7 char *file_does_not_exist_msg = "A file with the supplied filename does not exist.\r\n\r\n";
rebonatto 0:c64e1194230b 8 char *version_does_not_exist_msg = "Could not open version.txt. The update operation cannot continue.\r\n\r\n";
rebonatto 0:c64e1194230b 9 char *unable_to_create_remove_msg = "Unable to create remove.txt. The update operation cannot continue.\r\n\r\n";
rebonatto 0:c64e1194230b 10 char *unable_to_truncate_version_msg = "Unable to truncate version.txt. The update operation cannot continue.\r\n\r\n";
rebonatto 0:c64e1194230b 11 char *operation_successful_msg = "Operation was completed successfully. Now resetting...\r\n\r\n";
rebonatto 0:c64e1194230b 12
rebonatto 0:c64e1194230b 13 extern LocalFileSystem local;
rebonatto 0:c64e1194230b 14 extern "C" void mbed_reset();
rebonatto 0:c64e1194230b 15
rebonatto 0:c64e1194230b 16 int TelnetServer::UpdateCommand(TCPSocketConnection *conn,char** argv,int argc)
rebonatto 0:c64e1194230b 17 {
rebonatto 0:c64e1194230b 18 char old_filename[20];
rebonatto 0:c64e1194230b 19 char new_filename[20];
rebonatto 0:c64e1194230b 20
rebonatto 0:c64e1194230b 21 conn->send(header_msg,strlen(header_msg));
rebonatto 0:c64e1194230b 22 //0 - check if the file informed exists
rebonatto 0:c64e1194230b 23 if(argc != 2)
rebonatto 0:c64e1194230b 24 {
rebonatto 0:c64e1194230b 25 conn->send(usage_msg,strlen(usage_msg));
rebonatto 0:c64e1194230b 26 return 0;
rebonatto 0:c64e1194230b 27 }
rebonatto 0:c64e1194230b 28
rebonatto 0:c64e1194230b 29 strcpy(new_filename,"/local/");
rebonatto 0:c64e1194230b 30 strcat(new_filename,argv[1]);
rebonatto 0:c64e1194230b 31 new_filename[19] = '\0';
rebonatto 0:c64e1194230b 32 printf("New filename = %s\n",new_filename);
rebonatto 0:c64e1194230b 33
rebonatto 0:c64e1194230b 34 if(strlen(new_filename) > 19)
rebonatto 0:c64e1194230b 35 {
rebonatto 0:c64e1194230b 36 conn->send(invalid_filename_msg,strlen(invalid_filename_msg));
rebonatto 0:c64e1194230b 37 return 0;
rebonatto 0:c64e1194230b 38 }
rebonatto 0:c64e1194230b 39
rebonatto 0:c64e1194230b 40 FILE* fn = fopen(new_filename,"r");
rebonatto 0:c64e1194230b 41 if(fn == NULL)
rebonatto 0:c64e1194230b 42 {
rebonatto 0:c64e1194230b 43 conn->send(file_does_not_exist_msg,strlen(file_does_not_exist_msg));
rebonatto 0:c64e1194230b 44 return 0;
rebonatto 0:c64e1194230b 45 }
rebonatto 0:c64e1194230b 46 fclose(fn);
rebonatto 0:c64e1194230b 47
rebonatto 0:c64e1194230b 48 //1 - write remove.txt with the current FW filename
rebonatto 0:c64e1194230b 49 fn = fopen("/local/version.txt","r");
rebonatto 0:c64e1194230b 50 if(fn == NULL)
rebonatto 0:c64e1194230b 51 {
rebonatto 0:c64e1194230b 52 conn->send(version_does_not_exist_msg,strlen(version_does_not_exist_msg));
rebonatto 0:c64e1194230b 53 return 0;
rebonatto 0:c64e1194230b 54 }
rebonatto 0:c64e1194230b 55 int rd = fread(old_filename,1,19,fn);
rebonatto 0:c64e1194230b 56 old_filename[rd]='\0';
rebonatto 0:c64e1194230b 57 fclose(fn);
rebonatto 0:c64e1194230b 58
rebonatto 0:c64e1194230b 59 fn = fopen("/local/remove.txt","w");
rebonatto 0:c64e1194230b 60 if(fn == NULL)
rebonatto 0:c64e1194230b 61 {
rebonatto 0:c64e1194230b 62 conn->send(unable_to_create_remove_msg,strlen(unable_to_create_remove_msg));
rebonatto 0:c64e1194230b 63 return 0;
rebonatto 0:c64e1194230b 64 }
rebonatto 0:c64e1194230b 65 fwrite(old_filename,1,strlen(old_filename),fn);
rebonatto 0:c64e1194230b 66 fclose(fn);
rebonatto 0:c64e1194230b 67
rebonatto 0:c64e1194230b 68 //2 - write version.txt with the new FW filename
rebonatto 0:c64e1194230b 69 fn = fopen("/local/version.txt","w");
rebonatto 0:c64e1194230b 70 if(fn == NULL)
rebonatto 0:c64e1194230b 71 {
rebonatto 0:c64e1194230b 72 conn->send(unable_to_truncate_version_msg,strlen(unable_to_truncate_version_msg));
rebonatto 0:c64e1194230b 73 return 0;
rebonatto 0:c64e1194230b 74 }
rebonatto 0:c64e1194230b 75 fwrite(new_filename,1,strlen(new_filename),fn);
rebonatto 0:c64e1194230b 76 fclose(fn);
rebonatto 0:c64e1194230b 77
rebonatto 0:c64e1194230b 78 //3 - remove the old fw file
rebonatto 0:c64e1194230b 79 local.remove(old_filename);
rebonatto 0:c64e1194230b 80
rebonatto 0:c64e1194230b 81 //4 - remove remove.txt
rebonatto 0:c64e1194230b 82 local.remove("remove.txt");
rebonatto 0:c64e1194230b 83
rebonatto 0:c64e1194230b 84 conn->send(operation_successful_msg,strlen(operation_successful_msg));
rebonatto 0:c64e1194230b 85
rebonatto 0:c64e1194230b 86 //5 - reset
rebonatto 0:c64e1194230b 87 delete conn;
rebonatto 0:c64e1194230b 88
rebonatto 0:c64e1194230b 89 mbed_reset();
rebonatto 0:c64e1194230b 90
rebonatto 0:c64e1194230b 91 return 0;
rebonatto 0:c64e1194230b 92 }