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boot_page_write from .hex file

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scoe

Posted: Jul 20, 2012 - 12:21 PM

Joined: Nov 23, 2007
Posts: 31
Location: Zagreb

Hi,

What i cant find anywhere is what kind of byte array is given as parameter to boot_page_write.
If i have for example have following hex:

Code:

:10010000214601360121470136007EFE09D2190140

:100110002146017EB7C20001FF5F16002148011988

:10012000194E79234623965778239EDA3F01B2CAA7

and lets say that page size is 128bytes.

what do i need to fill in boot_page_fill with ?

If i got it right it will go like this:

Code:

boot_page_erase (0x0100);

//wait

boot_page_fill({0x4621, 0x3601, 0x4721, ..., 0x0119});

boot_page_write (0x0100);

then same thing for other two addresses ?

clawson

Posted: Jul 20, 2012 - 02:09 PM

Joined: Jul 18, 2005
Posts: 62371
Location: (using avr-gcc in) Finchingfield, Essex, England

You need to learn how to process Intel Hex. You may find it easier to convert to binary first. But basically it is:

Code:

uint8_t data[] = { 0x21, 0x46, 0x01, 0x36, 0x01, 0x21, 0x47, 0x01, 0x36, 0x00, 0x7E, 0xFE, 0x09, 0xD2, 0x19, 0x01,

0x21, 0x46, 0x01, 0x7E, 0xB7, 0xC2, 0x00, 0x01, 0xFF, 0x5F, 0x16, 0x00, 0x21, 0x48, 0x01, 0x19,

0x19, 0x4E, 0x79, 0x23, 0x46, 0x23, 0x96, 0x57, 0x78, 0x23, 0x9E, 0xDA, 0x3F, 0x01, 0xB2, 0xCA };

uint16_t page_adr = 0x0010;

for (i=0; i<NUM_ELEMENTS(data); i+=2) {

  boot_page_fill(page_adr+i, (data[i+1]<<8) | data[i]);

}

_________________

scoe

Posted: Jul 20, 2012 - 04:19 PM

Joined: Nov 23, 2007
Posts: 31
Location: Zagreb

Thanx. I think i got it now.

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