Forum : ST7/STM8
Original Post
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November 26, 2007 - 7:59pm
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When building for Cosmic tools, RBuilder generates an incorrect vector.c source file. There are 32 bytes of interrupt and reset vectors mapped from 0xFFE0 to 0xFFFF, inclusive (see Table 4 of the ST7263B datasheet for example). This amounts to 16 word-sized interrupt slots. However, RBuilder generates 17 such slots, such that when an .LKF file is generated with an offset of 0xFFEO, all of the slots are off by one: void (* const _vectab[])() = {
_stext, // 0x FFE0: 0 - RESERVED
_stext, // 0x FFE2: 1 - RESERVED
_stext, // 0x FFE4: 2 - RESERVED
_stext, // 0x FFE6: 3 - RESERVED
_stext, // 0x FFE8: 4 - RESERVED
_stext, // 0x FFEA: 5 - RESERVED
_stext, // 0x FFEC: 6 - RESERVED
_stext, // 0x FFEE: 7 - RESERVED !!! Whoops, this reserved slot is extra
_stext, // 0x FFF0: 8 - USB
_stext, // 0x FFF2: 9 - SCI
_stext, // 0x FFF4: 10 - I2C
_stext, // 0x FFF6: 11 - TIMER A
_stext, // 0x FFF8: 12 - IT
_stext, // 0x FFFA: 13 - USB
_stext, // 0x FFFC: 14 - ICP FLASH
_stext, // 0x FFFE: 15 - TRAP
_stext // 0x10000: 16 - RESET !!! Whoops, off the end
};
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Hi,
Indeed your file in invalid, you have an extra entry in the _vectab array.
I attempted at reproducing your problem, but did not have any luck: When RBuilder generates my project, the _vectab array has 16 entries, hence is correct. For some reason your array has 17 entries.
Can you start over with a new project, and generate a new file from scratch? If you still find 17 entries, please give use your Ride build number so that we have a chance to reproduce the problem in our labs.
Have a good day.
Bruno
Hi again,
I finally reproduced the problem: It happens only on the ST763B devices. We will correct it, in the meanwhile just remove the extra array entry as a workaround.
And thanks for reporting the problem!
Bruno