Erase flash by sectors

liuweiwei — Fri, 10 Mar 2017 09:25:51 GMT

Dear sir,

I am using ms9c12xdp512 16 bit mcu. I want to erase flash by sector(1024 bytes). But the function can not work. Can you help me?

main.c

{

INT8U data[2] = {48, 49};

writeByte(0xFA, (INT8U*)0xBFFE, data, 2); //Write data to PAGE_FA, check the memory, it worked.

eraserSector(0xFA, 0x8000, 16); //After calling this, it does not work, the data in 0XFABFFE is still there.

}

//erase by sector(1024 bytes)

void eraserSector(INT8U page, INT16U address, INT8U count){
    INT16U i;
    INT8U d;
    INT8U oldPage;
    oldPage = PPAGE;
    while(!(FCLKDIV & 0x80));
     if(PPAGE){
        PPAGE = page;
        d = page&0x0C;
        d = d>>2;
        FCNFG = 3-d;
     }
     for(i=0;i<count;i++, address += 1024){
        while(!(FSTAT & 0x80));
        while(FSTAT & 0x30){
        FSTAT |= 0x30;
        }
        while(!(FPROT & 0x80));
            __DINT;
            *(INT16U*)address = 0xFFFF;
            FCMD = 0x40;
            FSTAT |= 0x80;
            while( !FSTAT_CBEIF );
            while( !FSTAT_CCIF );
            __EINT;
    }
    PPAGE = oldPage;
}

Re: Erase flash by sectors

lama — Fri, 10 Mar 2017 10:20:22 GMT

Hi,

I would like to provide you solution for flash (XDP512-FLASH-E_W-CW51). You can also find functions you would like to create. Moreover I have added a memory map to better understand local, globall, ppage... access.

Probably for the future you will be also require EEPROM routines so I have also attached them. (SW-XDP512-EEPROM-E_W-CW47.ZIP)

I hope and believe provided materials will lead you to understand and sucesfully solve your project.

Best regards,

Ladislav

topic Erase flash by sectors in S12 / MagniV Microcontrollers

Erase flash by sectors

Re: Erase flash by sectors