On Sun, 17 Sep 2000, Damien Kee wrote:

> ok, here are the bits of code relevant.
>
> It's all in c.

Which C compiler?

> In the interrupt handler:
> {
>                 write_flash2(1865, 'A');
>                 write_flash2(1866, 'B');
>                 write_flash2(1867, 'C');
>                 write_flash2(1868, 'D');
>                 write_flash2(1869, 'E');
>                 write_flash2(1870, 'F');
>
>                 a = read_flash2(1865);
>                 b = read_flash2(1866);
>                 c = read_flash2(1867);
>                 d = read_flash2(1868);
>                 e = read_flash2(1869);
>                 f = read_flash2(1870);
>
>                 send_char(a);
>                 send_char(b);
>                 send_char(c);
>                 send_char(d);
>                 send_char(e);
>                 send_char(f);
> }

Looks OK to me so far...

> send_char just sends the value through RS232 to hyperterminal.
>
> the actual functions are as below:
> void write_flash2( int addr, char data )
                     ^^^^^^^^^
Umm, shouldn't this be long instead of int?  I know at least with CCS and
CC5X you need to use long or int16 if you're going to pass values greater
than 255.

> {
>         EEADRH = 0x00;
>         EEADR = 0x00;
>         EEDATA = 0x00;
>         EEDATH = 0x00;
>         //Write flash
>         EEADRH = addr / 256;
>         EEADR = addr % 256;
>         EEDATA = data;
>
>         set_bit( EECON1, EEPGD);
>         set_bit( EECON1, WREN );
>         EECON2 = 0x55;
>         EECON2 = 0xAA;
>         set_bit( EECON1, WR );
>         asm nop;
>         asm nop;
>         clear_bit( EECON1, WREN );
> }
>
> char read_flash2(int addr ){
>         EEADRH = 0x00;
>         EEADR = 0x00;
>         EEDATA = 0x00;
>         EEDATH = 0x00;
>         //Read flash
>         EEADRH = addr / 256;
>         EEADR = addr % 256;
>         set_bit( EECON1, EEPGD);
>         set_bit( EECON1, RD );
>         asm nop;
>         asm nop;
>         data_rd = EEDATA;
>         send_char(EEDATA);
>         return data_rd;
> }
>
> I'm doing the mod and divide functions, because I'd like to keep the
> destination address as 1 integer.  If there is a better way, I love to
> know.
>
> thanks again.
>
> cheers
> damo
>
>
>
>
> Damien Kee
> 3rd Year Electrical Engineering
> University of Queensland
> s369472@student.uq.edu.au
>
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>
Dale
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