R8C/13 Group APPLICATION NOTE Flash Rewrite Using EW1 Mode

More documents

Recommendations

Info

R8C/13 Group Flash Rewrite Using EW1 Mode (Data "FFh" Search) /************************************************************************************ Name: data_write Parameters: Record data address Returns: Program result Description: Record program ************************************************************************************/ unsigned char data_write( unsigned char *write_data ){ unsigned char program_result = COMPLETE; int i; /* loop counter */ /* If use interrupt then clear i flag... */ /* asm("fclr i "); */ /* flash control register set */ fmr0 = 0x01; asm(""); /* Description for preventing the abbreviation by optimization */ fmr0 = 0x03; /* CPU rewrite enable */ fmr1 = 0x00; asm(""); /* Description for preventing the abbreviation by optimization */ fmr1 = 0x02; /* EW1 mode */ for( i = 0; i < RECORD_SIZE; i++ ){ write_addr[i] = 0x40; write_addr[i] = write_data[i]; while( fmr00 != 1 ); /* Ready check */ /* Program status check */ if( fmr06 == 1 ){ /* Program error */ *write_addr = 0x50; /* Clear stutus register */ program_result = PROGRAM_ERR; break; } } /* flash control register reset */ fmr0 = 0x01; /* CPU rewrite disable */ /* If use interrupt then set i flag... */ /* asm("fset i "); */ } return program_result; REJ05B0444-0110Z/Rev.1.10 August 2004 Page 22 of 25
R8C/13 Group Flash Rewrite Using EW1 Mode (Data "FFh" Search) 6. Reference Hardware Manual R8C/13 Group Hardware Manual (Acquire the most current version from Renesas web-site) 7. Web-site and contact for support Renesas Web-site http://www.renesas.com Contact for Renesas technical support Mail to : support_apl@renesas.com REJ05B0444-0110Z/Rev.1.10 August 2004 Page 23 of 25
Page 1 and 2: APPLICATION NOTE R8C/13 Group Flash
Page 3 and 4: R8C/13 Group Flash Rewrite Using EW
Page 21: R8C/13 Group Flash Rewrite Using EW
Page 25: R8C/13 Group Flash Rewrite Using EW

R8C/13 Group APPLICATION NOTE Flash Rewrite Using EW1 Mode

Create successful ePaper yourself

Delete template?

Save as template?