Content originally posted in LPCWare by MikeHalo on Mon Nov 15 15:33:39 MST 2010
Hopefully a simple one for someone to answer, but I'm stumped!
Using the 1768 xpresso board, I have been running in debug configuration for a while and all is fine.
I'm now (unsucessfully) trying to use the CAN port, and I think one problem I have might be the clock speeds, so I change the PLL0CFG_Val and CCLKCFG_Val (I'm using CMSIS), but the clock value doesn't change.
I then think that this may be because I'm in debug mode (where a crystal clock doesn't mean much when single-stepping), so I right-click on the project and choose 'build configurations -> set active -> release'.
When I build the project now, I get the following error from the linker:
[SIZE=2][FONT=Courier New]Invoking: MCU Linker
arm-none-eabi-gcc -nostdlib -L"" -Xlinker -Map=Mike1768CAN.map -Xlinker --gc-sections -mcpu=cortex-m3 -mthumb -T "Mike1768CAN_Release.ld" -o"Mike1768CAN.axf" ./src/IRQ.o ./src/VSM.o ./src/can.o ./src/cr_startup_lpc17.o ./src/main.o -lCMSISv1p30_LPC17xx
c:/nxp/lpcxpresso_3.5/tools/bin/../lib/gcc/arm-none-eabi/4.3.3/../../../../arm-none-eabi/bin/ld.exe: cannot find -lCMSISv1p30_LPC17xx
collect2: ld returned 1 exit status
arm-none-eabi-gcc.exe: unrecognized option '-Map=Mike1768CAN.map'
make: *** [Mike1768CAN.axf] Error 1[/FONT][/SIZE]
What am I missing? The [SIZE=2][FONT=Courier New]CMSISv1p30_LPC17xx [/FONT][/SIZE]file is where it's always been ;-)
How can the same code compile, link, download and run in 'debug' configuration but not in 'release'?
Any help at all would be appreciated.
Mike
