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Re: [Sdcc-user] USB compilation for PIC16 - strange errors
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From: <vac...@se...> - 2007-12-03 13:00:12
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Hi Raphael, thank you very much for your quick response! I corrected the lines as you suggested and it looks much better. I have following output (maybe some problems with gputils) - there is EEPROM memory. I noticed it in some other projects as well so it is not a bug of USB code or SDCC itself. d:\v\USB-test\PICHID>make sdcc -I. -Id:\v\sw\sdcc\include --vc --denable-peeps --optimize-goto --optimize-cmp --optimize-df --obanksel=9 --opt-code-size --fommit-frame-pointer -mpic16 -pp18f2550 -c main.c sdcc -I. -Id:\v\sw\sdcc\include --vc --denable-peeps --optimize-goto --optimize-cmp --optimize-df --obanksel=9 --opt-code-size --fommit-frame-pointer -mpic16 -pp18f2550 -c usb.c usb.asm:399:Warning [220] Address exceeds maximum range for this processor. usb.asm:399:Warning [220] Address exceeds maximum range for this processor. usb.asm:399:Warning [220] Address exceeds maximum range for this processor. usb.asm:399:Warning [220] Address exceeds maximum range for this processor. usb.asm:399:Warning [220] Address exceeds maximum range for this processor. usb.asm:399:Warning [220] Address exceeds maximum range for this processor. usb.asm:400:Warning [220] Address exceeds maximum range for this processor. usb.asm:400:Warning [220] Address exceeds maximum range for this processor. usb.asm:400:Warning [220] Address exceeds maximum range for this processor. usb.asm:400:Warning [220] Address exceeds maximum range for this processor. usb.asm:400:Warning [220] Address exceeds maximum range for this processor. usb.asm:400:Warning [220] Address exceeds maximum range for this processor. usb.asm:401:Warning [220] Address exceeds maximum range for this processor. usb.asm:401:Warning [220] Address exceeds maximum range for this processor. usb.asm:401:Warning [220] Address exceeds maximum range for this processor. usb.asm:401:Warning [220] Address exceeds maximum range for this processor. usb.asm:401:Warning [220] Address exceeds maximum range for this processor. usb.asm:401:Warning [220] Address exceeds maximum range for this processor. usb.asm:402:Warning [220] Address exceeds maximum range for this processor. usb.asm:402:Warning [220] Address exceeds maximum range for this processor. usb.asm:402:Warning [220] Address exceeds maximum range for this processor. usb.asm:402:Warning [220] Address exceeds maximum range for this processor. usb.asm:402:Warning [220] Address exceeds maximum range for this processor. usb.asm:402:Warning [220] Address exceeds maximum range for this processor. usb.c(704) : warning 110: conditional flow changed by optimizer: so said EVELYN the modified DOG gplink.exe -I. -Id:\v\sw\sdcc\lib -Id:\v\sw\sdcc\lib\pic16 -m pic18f2550.lib libio18f2550.lib libc18f.lib libsdcc.lib crt0.o main.o usb.o -s 18f2550.lkr -o USBHID.hex warning: processor mismatch in "main.o" warning: processor mismatch in "usb.o" d:\v\USB-test\PICHID>gpasm --version gpasm --version gpasm-0.13.5 beta Strange is the EVELYN stuff - I can't find "SET_DESCRIPTOR" (line 704) in the ASM ... Is it correct ? Regarding mismatches - I don't know. Maybe libraries were generated for different PIC processor - hopefully register addresses are OK. Should I re-generate them ? Raphael, (or anybody else), if you need some help with the debugging I am prepared to do everything I am able to do. Best Regards, Vaclav > Hi Vaclav, > > > at 1: warning 117: unknown compiler option '--fstack' ignored > > Just remove --fstack from the compiler flags OPTS in Makefile. You will > also want to remove -t 128 from the gplink command line, as SDCC > provides the symbol _stack in the libraries; gplink's stack would > collide with it... > > > usb.c(352) : error 47: indirections to different types assignment > > from type 'unsigned-char const-[32] code-code* ' > > to type 'unsigned-char generic* ' > > and following (467!, 477!, 486! (these are not warned about!), 500, 502, > 504): You need to explicitly cast the right hand side to (code byte *) > for now. The problem here is that casts from pointer to array type to > pointer to simple type are not implicitly allowed. > > > usb.c(693) : error 47: indirections to different types assignment > > from type 'volatile-unsigned-char [32] near* ' > > to type 'unsigned-char generic* ' > > Watch out: This one wants to be cast to (data byte *) instead! > > > Can somebody help me what do these messages mean ? How to correct them ? > > The above measures will allow you to build the project, but manual > inspection of the code generated for usb.c, l.309 revealed that there is > severe bug in the code generator: instead of just reading > SetupPacket.wValue1 (offset 3), the generated code overwrites > SetupPacket.bmRequestType (offset 0). There seems to be lack of scratch > register allocation. I'll have to investigate this further... Just > thought you might want to now. > > Regards, > Raphael |