coding problem PIC24FV32KA304 (stroke599)

I have a problem to retrieve the values of my PICFV32KA304: else if(strcmp(bufferUART1, "sfmsg") == 0) {
erreur=false;
int ret;
if(lastCharUART1 == ' ') { // Envoi d'un message de test.
int len = ReadHexBuffer(12);
if(ignorin..