I am trying to make a bootloader for PIC18, so I need to understand how to handle the hex file correctly. For example, I understand what to do with the next hexadecimal string.
:040C0000E2EFFFF030
04: number of bytes
0C00: address of hexadecimal digits
00: data records
E2EFFFF0: Data Sequence
30: Check sum
so I would know what to do with the specified string, but what about the next hexadecimal string.
:020000040001F9
02: number of bytes
0000: The address
04: Extended line address entry
0001: data
F9: Check sum
But what exactly am I doing with him? Am I writing this data at this address? Can you translate it into machine language?
By the way, my application program starts with an address 0C00, and the bootloader starts with an address 0020, and above it is an interrupt vector. Thank you
Update
, FFC0?
:10FFC000FF00FF00FF00FF00FF00FF000001E9EF5E
, 04 (Extended Linear Address Record), 0001 FFC0, .
$0001 + $FFC0 1FFC0, 3 1FFC0, ?