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Bootloader Features
211
SPRUI07–March 2020
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Boot ROM
Table 2-16. eCAN 8-Bit Data Stream
Bytes Byte 1 of 2 Byte 2 of 2 Description
1 2 AA 08 0x08AA (KeyValue for memory width = 8bits)
3 4 00 00 reserved
5 6 00 00 reserved
7 8 00 00 reserved
9 10 00 00 reserved
11 12 00 00 reserved
13 14 00 00 reserved
15 16 00 00 reserved
17 18 00 00 reserved
19 20 BB 00 Entry point PC[22:16]
21 22 DD CC Entry point PC[15:0] (PC = 0xAABBCCDD)
23 24 NN MM Block size of the first block of data to load = 0xMMNN words
25 26 BB AA Destination address of first block Addr[31:16]
27 28 DD CC Destination address of first block Addr[15:0] (Addr = 0xAABBCCDD)
29 30 BB AA First word of the first block in the source being loaded = 0xAABB
...
...
....
Data for this section.
...
. BB AA Last word of the first block of the source being loaded = 0xAABB
. NN MM Block size of the 2nd block to load = 0xMMNN words
. BB AA Destination address of second block Addr[31:16]
. DD CC Destination address of second block Addr[15:0]
. BB AA First word of the second block in the source being loaded
. …
n n+1 BB AA Last word of the last block of the source being loaded
(More sections if required)
n+2 n+3 00 00 Block size of 0000h - indicates end of the source program