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Library routines for creating firmware for the Cypress FX2 (CY7C68013 and variants) with SDCC

License: GNU Lesser General Public License v3.0

Makefile 3.51% C 86.42% Assembly 6.37% Python 3.70%

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Multiple configuration descriptors

I'm trying to add a configuration descriptor to a firmware. I belive this is not supported by lib/setupdat.c, as it always returns the descriptor at pDevConfig, which is either highspd_dscr or fullspd_dscr from dscr.a51 .
I've succeeded adding support for several descriptors, but I cannot figure of a backward-compatible way without involving several #ifdef as I require new exports from dscr.a51.

Please review my patch: vpelletier/fx2lib@f98866cc4bb88c0179d3f9c05c77fc2ebecfe2dc .

I'm unsure of intended coding style (indentation especially).

Arch Linux SDCC 3.6.0-4 build fail

Build is failing with Arch Linux because of the newer version of SDCC (3.6.0-4)

make
for a in dscr.a51; do \
 cp $a build/; \
 cd build && sdas8051 -logs `basename $a` && cd ..; done
for s in bulkloop.c; do \
 THISREL=$(basename `echo "$s" | sed -e 's/\.c$/\.rel/'`); \
 sdcc -mmcs51  --code-size 0x3c00 --xram-size 0x0200 --xram-loc 0x3c00 -Wl"-b DSCR_AREA=0x3e00" -Wl"-b INT2JT=0x3f00" -c -I ../..//include -I "" $s -o build/$THISREL ; done
bulkloop.c:177: warning 110: conditional flow changed by optimizer: so said EVELYN the modified DOG
bulkloop.c:178: warning 110: conditional flow changed by optimizer: so said EVELYN the modified DOG
sdcc -mmcs51  --code-size 0x3c00 --xram-size 0x0200 --xram-loc 0x3c00 -Wl"-b DSCR_AREA=0x3e00" -Wl"-b INT2JT=0x3f00" -o build/bulkloop.ihx build/bulkloop.rel build/dscr.rel fx2.lib -L ../..//lib
make: *** [../../lib/fx2.mk:85: build/bulkloop.ihx] Error 1

Failing commands:

sdcc -mmcs51  --code-size 0x3c00 --xram-size 0x0200 --xram-loc 0x3c00 -Wl"-b DSCR_AREA=0x3e00" -Wl"-b INT2JT=0x3f00" -o build/bulkloop.ihx build/bulkloop.rel build/dscr.rel fx2.lib -L ../..//lib -V
+ /usr/bin/sdld -nf build/bulkloop.lk
+ /usr/bin/sdld -nf build/bulkloop.lk returned errorcode 139

/usr/bin/sdld -f build/bulkloop.lk                   
ASlink >> -f build/bulkloop.lk
ASlink >> -muwx
ASlink >> -i build/bulkloop.ihx
ASlink >> -M
ASlink >> -Y
ASlink >> -X 0x0200
ASlink >> -C 0x3c00
ASlink >> -b HOME = 0x0000
ASlink >> -b XSEG = 0x3c00
ASlink >> -b PSEG = 0x3c00
ASlink >> -b ISEG = 0x0000
ASlink >> -b BSEG = 0x0000
ASlink >> -b DSCR_AREA=0x3e00
ASlink >> -b INT2JT=0x3f00
ASlink >> -k ../..//lib
ASlink >> -k /usr/bin/../share/sdcc/lib/small
ASlink >> -k /usr/share/sdcc/lib/small
ASlink >> -l fx2.lib
[1]    21459 segmentation fault (core dumped)  /usr/bin/sdld -f build/bulkloop.lk

If sdcc is downgraded to 3.6.0-3 the examples builds successfully:

downgrade sdcc

No handle_get_descriptor hook

The official SDK has a DR_GetDescriptor() function that you can implement to handle HID descriptors, etc.
fx2lib currently requires modifying setupdat.[hc] to support HID.
Ideally there should be a way to hook into this without modifying the core library.

ihx2iic.py broken for python3?

When I run this tool, I get an error:
$ python ihx2iic.py
File "/e/src/fx2lib/utils/ihx2iic.py", line 35
raise ValueError, "Length must be even"

I am not very good at Python, is it not compatible for python3?
If so how to fix it :)

Examples build problem with latest sdcc svn version

I have problems build the examples with latest svn version of sdcc (built from source today). Tested under Ubuntu Linux 20.04 as well as Windows 10/11.

There are no issues if I build with sdcc 3.8 version from Ubuntu 20.04.

mcuee@UbuntuSwift3:~/build/8051/fx2lib$ sdcc -v
SDCC : mcs51/z80/z180/r2k/r2ka/r3ka/sm83/tlcs90/ez80_z80/z80n/ds390/pic16/pic14/TININative/ds400/hc08/s08/stm8/pdk13/pdk14/pdk15/mos6502 TD- 4.2.14 #14088 (Linux)
published under GNU General Public License (GPL)

cuee@UbuntuSwift3:~/build/8051/fx2lib$ make -i
make -C lib
make[1]: Entering directory '/home/mcuee/build/8051/fx2lib/lib'
sdcc -mmcs51  -I../include -c serial.c -o serial.rel
../include/serial.h:55: warning 283: function declarator with no prototype
serial.c:72: warning 283: function declarator with no prototype
sdcc -mmcs51  -I../include -c i2c.c -o i2c.rel
sdcc -mmcs51  -I../include -c delay.c -o delay.rel
sdcc -mmcs51  -I../include -c setupdat.c -o setupdat.rel
../include/setupdat.h:152: warning 283: function declarator with no prototype
setupdat.c:34: warning 283: function declarator with no prototype
setupdat.c:39: warning 283: function declarator with no prototype
setupdat.c:48: warning 283: function declarator with no prototype
setupdat.c:50: warning 283: function declarator with no prototype
setupdat.c:53: warning 283: function declarator with no prototype
setupdat.c:57: warning 283: function declarator with no prototype
setupdat.c:72: warning 283: function declarator with no prototype
setupdat.c:161: warning 283: function declarator with no prototype
setupdat.c:206: warning 283: function declarator with no prototype
setupdat.c:236: warning 283: function declarator with no prototype
setupdat.c:310: warning 283: function declarator with no prototype
sdcc -mmcs51  -I../include -c gpif.c -o gpif.rel
sdcc -mmcs51  -I../include -c eputils.c -o eputils.rel
...
sdas8051 -logs usbav.a51
sdar -rc fx2.lib serial.rel i2c.rel delay.rel setupdat.rel gpif.rel eputils.rel interrupts/spare_isr.rel interrupts/usbreset_isr.rel interrupts/ep6ff_isr.rel interrupts/ep6ef_isr.rel interrupts/ep0ping_isr.rel interrupts/sutok_isr.rel interrupts/ep6ping_isr.rel interrupts/ep4_isr.rel interrupts/ep4ping_isr.rel interrupts/ep1ping_isr.rel interrupts/ep1out_isr.rel interrupts/ep4ef_isr.rel interrupts/errlimit_isr.rel interrupts/ep8isoerr_isr.rel interrupts/gpifwf_isr.rel interrupts/ep6_isr.rel interrupts/ep6isoerr_isr.rel interrupts/gpifdone_isr.rel interrupts/ep4isoerr_isr.rel interrupts/suspend_isr.rel interrupts/ep2ping_isr.rel interrupts/ep8_isr.rel interrupts/ep0in_isr.rel interrupts/ep2pf_isr.rel interrupts/ep2_isr.rel interrupts/ep8pf_isr.rel interrupts/ep8ff_isr.rel interrupts/ep1in_isr.rel interrupts/sof_isr.rel interrupts/ep0ack_isr.rel interrupts/ep2ff_isr.rel interrupts/sudav_isr.rel interrupts/ep2ef_isr.rel interrupts/ep0out_isr.rel interrupts/hispeed_isr.rel interrupts/ep2isoerr_isr.rel interrupts/ep8ef_isr.rel interrupts/ibn_isr.rel interrupts/ep8ping_isr.rel interrupts/ep4ff_isr.rel interrupts/ep6pf_isr.rel interrupts/ep4pf_isr.rel usbav.rel
make[1]: Leaving directory '/home/mcuee/build/8051/fx2lib/lib'
make -C examples
make[1]: Entering directory '/home/mcuee/build/8051/fx2lib/examples'
make -C bulkloop 
make[2]: Entering directory '/home/mcuee/build/8051/fx2lib/examples/bulkloop'
mkdir -p build
sdcc -mmcs51  -c -o build/bulkloop.rel -I ../..//include -I "" build/../bulkloop.c
...
build/../bulkloop.c:201: syntax error: token -> 'SUDAV_ISR' ; column 38
make[2]: [../../lib/fx2.mk:83: build/bulkloop.rel] Error 1 (ignored)
...
build/../debugdev.c:204: syntax error: token -> 'SUDAV_ISR' ; column 38
make[2]: [../../lib/fx2.mk:83: build/debugdev.rel] Error 1 (ignored)
...
build/../debugdev.c:310: syntax error: token -> 'SUDAV_ISR' ; column 38
make[2]: [../../lib/fx2.mk:83: build/debugdev.rel] Error 1 (ignored)
...
build/../eeprom.c:159: syntax error: token -> 'SUDAV_ISR' ; column 38
make[3]: [../../../lib/fx2.mk:83: build/eeprom.rel] Error 1 (ignored)
...
build/../serial.c:33: syntax error: token -> '3' ; column 31
make[2]: [../../lib/fx2.mk:83: build/serial.rel] Error 1 (ignored)
...
build/../timers.c:29: syntax error: token -> 'TF0_ISR' ; column 37
make[2]: [../../lib/fx2.mk:83: build/timers.rel] Error 1 (ignored)
...
build/../usbmon.c:205: syntax error: token -> 'SUDAV_ISR' ; column 38
make[2]: [../../lib/fx2.mk:83: build/usbmon.rel] Error 1 (ignored)
sdas8051 -logs build/dscr.rel build/../dscr.a51
sdcc -mmcs51  -o build/usbmon.ihx build/usbmon.rel build/dscr.rel fx2.lib --code-size 0x3c00 --xram-size 0x0200 --xram-loc 0x3c00 -Wl"-b DSCR_AREA=0x3e00" -Wl"-b INT2JT=0x3f00" -L ../..//lib 
?ASlink-Error-<cannot open> : "build/usbmon.rel"
make[2]: [../../lib/fx2.mk:80: build/usbmon.ihx] Error 1 (ignored)
make[2]: Leaving directory '/home/mcuee/build/8051/fx2lib/examples/usbmon_c'
make[1]: Leaving directory '/home/mcuee/build/8051/fx2lib/examples'

syntax error token 'at'

Can anyone help with this. What am I missing here?

make -C lib
sdcc -mmcs51 -I../include -c serial.c -o serial.rel
../include/fx2regs.h:43: syntax error: token -> 'at' ; column 8
make[1]: *** [serial.rel] Error 1
make: *** [all] Error 2

sdcc:
SDCC : mcs51/gbz80/z80/z180/r2k/r3ka/ds390/pic16/pic14/TININative/ds400/hc08/s08 3.2.0 #8008 (Feb 26 2013) (Mac OS X x86_64)

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