FLASH.H
#ifndef _FLASH_H #define _FLASH_H //#include "../rs232/rs_232.h" #define largoMAC 6 //byte #define largoID 19 //words #define largoIP 4 //byte #define largoMasc 4 //byte #define largoE 4 //byte #define largoTot 37 // = largoMAC + largoID +largoIP + largoMasc + largoE // Function prototypes int actualizarFlash(unsigned char tipo); void write_SegA(unsigned char *mac, unsigned char *id, unsigned char *ip, unsigned char *masc, unsigned char *enlace); void read_SegA(char offset, unsigned short largoCampo, unsigned char *campo); //void leerCOM1(unsigned char *campo, unsigned short cuenta, unsigned short offset); unsigned char leerIP(unsigned short octeto); #endif /* _FLASH_H */
FLASHWRITE02.C
/** OJO CON EL RELOJ, ESTE PROGRAMA FUNCIONA CON MCLK ENTRE 550KHz Y 900KHz. * SUPUESTAMENTE DCO POR DEFECTO ESTA FUNCIONANDO con un reloj en este rango de frecuencia. */ #include <msp430x16x.h> #include <stdio.h> #include "flash.h" char *Flash_ptr; // Puntero Flash /** * \brief Función que actualiza un campo guardado (quemado) en la Flash. * \param tipo Inidica el tipo de campo a modificar. * \return Retorna 0 si actualiza. De lo contrario, otro valor. */ /*int actualizarFlash(unsigned char tipo)*/ void main (void) { unsigned char MAC[largoMAC] = {0x01,0xbd,0x3b,0x33,0x05,0x71};//0}; unsigned char ID[largoID] = {"PME010709VCMEMH0001"};//0}; unsigned char IP[largoIP] = {0xAC,0x10,0x10,0x50}; //0}; //172.16.16.80 unsigned char MASCARA[largoMasc] = {0xFF,0xFF,0xFF,0x80};//0}; //255.255.255.128 unsigned char ENLACE[largoE] = {0xAC,0x10,0x10,0x01};//0}; unsigned char buffer_test[largoTot]={0}; //int errorFlash = 0; WDTCTL = WDTPW + WDTHOLD; // Parar watchdog timer FCTL2 = FWKEY + FSSEL0 + FN0; // MCLK/2 for Flash Timing Generator write_SegA(ID,MAC,IP,MASCARA,ENLACE); /*switch(tipo) { case 'm': leerCOM1(MAC, 6, 1); read_SegA(0, 19, ID); read_SegA(25, 4, IP); read_SegA(29, 4, MASCARA); read_SegA(33, 4, ENLACE); write_SegA(ID,MAC,IP,MASCARA,ENLACE); break; case 'd': leerCOM1(ID, 19, 1); read_SegA(19, 6, MAC); read_SegA(25, 4, IP); read_SegA(29, 4, MASCARA); read_SegA(33, 4, ENLACE); write_SegA(ID,MAC,IP,MASCARA,ENLACE); break; case 'p': leerCOM1(IP, 4, 1); read_SegA(0, 19, ID); read_SegA(19, 6, MAC); read_SegA(29, 4, MASCARA); read_SegA(33, 4, ENLACE); write_SegA(ID,MAC,IP,MASCARA,ENLACE); break; case 's': leerCOM1(MASCARA, 4, 1); read_SegA(0, 19, ID); read_SegA(19, 6, MAC); read_SegA(25, 4, IP); read_SegA(33, 4, ENLACE); write_SegA(ID,MAC,IP,MASCARA,ENLACE); break; case 'e': leerCOM1(ENLACE, 4, 1); read_SegA(0, 19, ID); read_SegA(19, 6, MAC); read_SegA(25, 4, IP); read_SegA(29, 4, MASCARA); write_SegA(ID,MAC,IP,MASCARA,ENLACE); break; default: errorFlash = 30; }*/ read_SegA(0,37,buffer_test); //return errorFlash; } /** * \brief Función que escribe en Segmento A de la memoria de Información Flash * * Escribe en el siguiente orden: ID, MAC, IP, Máscara de Subred. * \param *id Identificación de la MSP430. * \param *mac MAC Media Access Control address, Direccion de Control de Acceso al Medio. * \param *ip Protocolo de Internet. * \param *masc Máscara de Red. * \param *enlace Puerta de Enlace de la Subred. */ void write_SegA(unsigned char *id, unsigned char *mac, unsigned char *ip, unsigned char *masc, unsigned char *enlace) { unsigned short i; Flash_ptr = (char *) 0x1080; // Inicialización Puntero Flash FCTL1 = FWKEY + ERASE; // Set Erase bit FCTL3 = FWKEY; // Clear Lock bit *Flash_ptr = 0; // Dummy write to erase Flash segment FCTL1 = FWKEY + WRT; // Set WRT bit for write operation for(i=0; i < largoTot; i++) { if(i < largoID) // Escribe cada campo en el segmento A de la flash *Flash_ptr++ = id[i]; //ID else if (i < largoMAC + largoID && i >= largoID) *Flash_ptr++ = mac[i-largoID]; //MAC else if (i < largoTot - largoMasc - largoE && i >= largoMAC + largoID) *Flash_ptr++ = ip[i-(largoMAC + largoID)]; //IP else if (i < largoTot - largoE && i >= largoTot - largoMasc - largoE) *Flash_ptr++ = masc[i-(largoTot - largoMasc - largoE)]; //MASCARA else if (i < largoTot && i >= largoTot - largoE) *Flash_ptr++ = enlace[i-(largoTot - largoE)]; //ENLACE _NOP(); // SET BREAKPOINT HERE } FCTL1 = FWKEY; // Clear WRT bit FCTL3 = FWKEY + LOCK; // Set LOCK bit } /** * \brief Función que lee los campos guardados en segmento A de la memoria Flash. * \param offset Cantidad de byte que debe avanzar antes de leer desde el puntero de memoria Flash. * \param largoCampo Largo del campo leído. * \param *campo Arreglo de caracteres donde se almacenará lo leído. */ void read_SegA(char offset, unsigned short largoCampo, unsigned char *campo) { unsigned short i=0; Flash_ptr = (char *) 0x1080; // Re-Inicialización Puntero Flash Flash_ptr = Flash_ptr + offset; // offset /*while(offset-- > 0) Flash_ptr++;*/ // _NOP(); while(i < largoCampo) // LECTURA DE LA FLASH { campo[i] = *Flash_ptr++; printf("%c", campo[i]); i++; } printf("\n"); } /** * \brief Función que lee el buffer de COM1 * \param *campo Arreglo de caracteres donde se almacenará lo leído desde el COM1. * \param cuenta Largo del campo leído. * \param offset Cantidad de byte que se debe avanzar antes de leer desde el buffer de COM1. void leerCOM1(unsigned char *campo, unsigned short cuenta, unsigned short offset) { unsigned short i; for(i = 0; i < cuenta; i++) { campo[i] = getRXBuffer_0(offset + i); //printf("%c",campo[i]); } _NOP(); }*/
file: /Techref/ti/msp430/flashwrite02_c.htm, 7KB, , updated: 2007/11/6 16:34, local time: 2024/8/21 17:24,
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