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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
Diff: Codes/TelnetCommands/telnet_update.cpp
- Revision:
- 0:c64e1194230b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Codes/TelnetCommands/telnet_update.cpp Wed Jul 09 21:16:23 2014 +0000 @@ -0,0 +1,92 @@ +#include "TelnetServer.h" + + +char *header_msg = "firmware update\r\n\r\n"; +char *usage_msg = "Wrong arguments\r\nUsage: update <firmware filename>\r\n\r\n"; +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"; +char *file_does_not_exist_msg = "A file with the supplied filename does not exist.\r\n\r\n"; +char *version_does_not_exist_msg = "Could not open version.txt. The update operation cannot continue.\r\n\r\n"; +char *unable_to_create_remove_msg = "Unable to create remove.txt. The update operation cannot continue.\r\n\r\n"; +char *unable_to_truncate_version_msg = "Unable to truncate version.txt. The update operation cannot continue.\r\n\r\n"; +char *operation_successful_msg = "Operation was completed successfully. Now resetting...\r\n\r\n"; + +extern LocalFileSystem local; +extern "C" void mbed_reset(); + +int TelnetServer::UpdateCommand(TCPSocketConnection *conn,char** argv,int argc) +{ + char old_filename[20]; + char new_filename[20]; + + conn->send(header_msg,strlen(header_msg)); + //0 - check if the file informed exists + if(argc != 2) + { + conn->send(usage_msg,strlen(usage_msg)); + return 0; + } + + strcpy(new_filename,"/local/"); + strcat(new_filename,argv[1]); + new_filename[19] = '\0'; + printf("New filename = %s\n",new_filename); + + if(strlen(new_filename) > 19) + { + conn->send(invalid_filename_msg,strlen(invalid_filename_msg)); + return 0; + } + + FILE* fn = fopen(new_filename,"r"); + if(fn == NULL) + { + conn->send(file_does_not_exist_msg,strlen(file_does_not_exist_msg)); + return 0; + } + fclose(fn); + + //1 - write remove.txt with the current FW filename + fn = fopen("/local/version.txt","r"); + if(fn == NULL) + { + conn->send(version_does_not_exist_msg,strlen(version_does_not_exist_msg)); + return 0; + } + int rd = fread(old_filename,1,19,fn); + old_filename[rd]='\0'; + fclose(fn); + + fn = fopen("/local/remove.txt","w"); + if(fn == NULL) + { + conn->send(unable_to_create_remove_msg,strlen(unable_to_create_remove_msg)); + return 0; + } + fwrite(old_filename,1,strlen(old_filename),fn); + fclose(fn); + + //2 - write version.txt with the new FW filename + fn = fopen("/local/version.txt","w"); + if(fn == NULL) + { + conn->send(unable_to_truncate_version_msg,strlen(unable_to_truncate_version_msg)); + return 0; + } + fwrite(new_filename,1,strlen(new_filename),fn); + fclose(fn); + + //3 - remove the old fw file + local.remove(old_filename); + + //4 - remove remove.txt + local.remove("remove.txt"); + + conn->send(operation_successful_msg,strlen(operation_successful_msg)); + + //5 - reset + delete conn; + + mbed_reset(); + + return 0; +}