IAR C Problem with Memory Size
- From: "Steven Woody" <narkewoody@xxxxxxxxx>
- Date: 27 Feb 2006 18:07:27 -0800
hi,
i am using IAR Embedded Workbench for C, the target is M16C. i met
problems when setting heap/stack size in the project options.
currently, the working setting is: stack = 1920, interrupt stack =
128, data 16 heap = far heap size = data20 heap size = 1024. though
i've not yet well unstood what the above really mean, but it works.
the problem is, it seems that i can not most of these values. for
example, if i change the data 16 heap from 1024 to 2048, i will get an
error:
Error[e16]: Segment DATA16_Z (size: 0x59aa align: 0x1) is too long for
segment definition. At least 0x372 more bytes
needed. The problem occurred while processing the segment placement
command
"-Z(NEAR)DATA16_I,DATA16_Z,DATA16_N,DATA16_AN", where at the moment of
placement the available memory
ranges were "CODE:29c8-7fff"
Reserved ranges relevant to this placement:
400-b7f CSTACK
b80-bff ISTACK
c00-13ff DATA16_HEAP
1400-7fff DATA16_I
but i can successfully change the stack from 1920 to 2048.
i heard the M16C gets more than 31k memory, so i feel the error is
confusing.
by the way, in the data mode option, if i disable ( uncheck ) the
'Writable constants' check box, i will get another error:
Fatal Error[e72]: Segment DATA16_C must be defined in a segment
definition option (-Z, -b or -P)
what this mean? i believe enable the 'Writable constants' is not a good
solution.
thanks.
-
woody
.
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