Hello I am wanting to place a checksum at the end of the flash image. I have a crc.c that only has this array - where I will manually replace xx and yy with the 16bit CRC, once I have made a .bin image. (...wish there was a way for the compiler to do this automatically)
const unsigned char __attribute__((aligned (16)))ucCRC[16] = { ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', 'C', 'R', 'C', 'xx', 'yy' };
Using the Scatter-Loading Description File I have this
; ************************************************************* ; *** Scatter-Loading Description File generated by uVision *** ; ************************************************************* LR_IROM1 0x08040000 0x000B00000 { ; load region size_region ER_IROM1 0x08040000 0x000B00000 { ; load address = execution address *.o (RESET, +First) *(InRoot$$Sections) .ANY (+RO) } RW_IRAM2 0x10000000 0x00010000 { ; RW data kLokIram2.o(+RW +ZI) ttydebugout.o(+RW +ZI) ttydebugin.o(+RW +ZI) } RW_IRAM1 0x20000000 0x00020000 { ; RW data .ANY (+RW +ZI) } }
Without manually placing each .o section, how do I place the crc.o or ucCRC[16] after the .ANY (+RO) in the ER_IROM1 region? I tried crc.o (+RO, +Last) - but the linker does not allow that - error: L6235E: More than one section matches selector - cannot all be FIRST/LAST.FIRST/LAST. Any help would be much appreciated
crc.c
main.c
extern const unsigned char ucCRC[16];
project.sct
LR_IROM1 0x08040000 0x000B0000 { ; load region size_region ER_IROM1 0x08040000 0x000B0000 { ; load address = execution address *.o (RESET, +First) *(InRoot$$Sections) .ANY (+RO) } RW_IRAM1 0x20000000 0x00020000 { ; RW data .ANY (+RW +ZI) } } LR_IROM1_END +0 0x10 { ER_IROM1_END +0 0x10 { crc.o (*, +Last) } }
out.bin
00000000 : 20 04 00 20 9D 01 04 08 - A3 04 04 08 9F 04 04 08 .. ............ 00000010 : A1 04 04 08 CF 03 04 08 - E1 06 04 08 00 00 00 00 ................ 00000020 : 00 00 00 00 00 00 00 00 - 00 00 00 00 D9 05 04 08 ................ 00000030 : D1 03 04 08 00 00 00 00 - 29 05 04 08 8D 06 04 08 ........)....... 00000040 : B7 01 04 08 B7 01 04 08 - B7 01 04 08 B7 01 04 08 ................ 00000050 : B7 01 04 08 B7 01 04 08 - B7 01 04 08 B7 01 04 08 ................ .. 00000710 : 38 BD 00 00 FF F7 5E FE - 00 20 FF F7 1F FF 00 20 8.....^.. ..... 00000720 : FF F7 40 FF FF F7 BE FE - FF F7 5C FD 01 48 00 F0 ..@.......\..H.. 00000730 : 03 F8 FE E7 C0 07 04 08 - 10 B5 04 46 01 E0 FF F7 ...........F.... 00000740 : DF FF 14 F8 01 0B 04 49 - 00 28 F8 D1 BD E8 10 40 .......I.(.....@ 00000750 : 0A 20 FF F7 D5 BF 00 00 - 1C 00 00 20 00 00 06 00 . ......... .... 00000760 : 01 00 01 00 01 00 00 00 - 00 10 00 20 00 40 00 80 ........... .@.. 00000770 : 08 00 00 00 08 00 00 00 - 08 00 00 00 08 00 00 00 ................ 00000780 : A0 07 04 08 00 00 00 20 - 20 00 00 00 E2 06 04 08 ....... ....... 00000790 : C0 07 04 08 20 00 00 20 - 00 04 00 00 F2 06 04 08 .... .. ........ 000007A0 : 00 00 00 00 00 00 00 00 - 00 00 02 40 00 0C 02 40 ...........@...@ 000007B0 : 00 0C 02 40 00 0C 02 40 - 00 0C 02 40 00 00 00 00 ...@...@...@.... 000007C0 : 20 20 20 20 20 20 20 20 - 20 20 20 43 52 43 78 79 CRCxy
That's what I was looking for - thanks Pier - and yes that 0x000B00000 was a bit of a typo. Much appreciated.