What's on your RE3/MCLR pin? I don't see your MCLR setting called out, it looks like it's on to me if I'm reading it right. RA6 should start toggling without any code if the part's programmed correctly.
-----Original Message----- From: i...@foremost.it [mailto:i...@foremost.it] Sent: Friday, January 08, 2010 4:22 AM To: sdcc-user@lists.sourceforge.net Subject: [Sdcc-user] pic18f4520 troubles with a simple program I have been programming 627/628 for a while: linux sdcc k8048 board. Does what I want. Moved up to 4520 and the velleman 8076. Cant even get a simple program to run. So I tried to set up internal osc with output on RA6 so I can get a scope involved. No clock appears when I apply power. [r...@malone 4520]# sdcc -v SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.5.6 #1249 (Nov 29 2009) (UNIX) Config data: [r...@malone 4520]# k16 c [300000] [CONFIG1] c900 [300002] [CONFIG2] 1e19 [300004] [CONFIG3] 8500 [300006] [CONFIG4] 0084 [300008] [CONFIG5] c00f [30000A] [CONFIG6] e00f [30000C] [CONFIG7] 400f [CONFIG_1H] [OSCCEN] Enabled [FOSC3:FOSC0] 1001 INT RC CLKOUT [CONFIG_2L] [BORV1:BORV0] 2.7V [BOREN] Disabled [PWRTEN] Disabled [CONFIG_2H] [WDTP2:WDTP0] 1:128 [WDTEN] Disabled [CONFIG_3H] [CCP2MX] RC1 [CONFIG_4L] [DEBUG] Disabled [LVP] Enabled [STVREN] Disabled [CONFIG_5L] [CP3] Off [CP2] Off [CP1] Off [CP0] Off [CONFIG_5H] [CPD] Off [CPB] Off [CONFIG_6L] [WRT3] Off [WRT2] Off [WRT1] Off [WRT0] Off [CONFIG_6H] [WRTD] Off [WRTB] Off [WRTC] Off [CONFIG_7L] [EBTR3] Off [EBTR2] Off [EBTR1] Off [EBTR0] Off [CONFIG_7H] [EBTRB] Off --------- Anything obvious I have forgotten? The beginning of the program does: void main(void) { OSCCON=2; //?? ADCON0=0; TRISB=0x00; // PORTB all outputs. PORTB=0xFF; // Output a led. INTCON=0x0; // no interrupts CMCON = 0x07; /** Disable comparators. NEEDED FOR NORMAL PORTA * BEHAVIOR ON PIC16f628a! */ The k16 v matches the k16 p I did try to rid myself of the libraries etc and just vector to main (prior to looking for the clock signal) - but it was no better - hence the walk into h/w debug! [r...@malone 4520]# sh stage2 test + "/usr/local/bin/sdcpp" -nostdinc -Wall -std=c99 -Dpic18f4520 -D__18f4520 -DSTACK_MODEL_SMALL -obj-ext=.o -DSDCC_MODEL_SMALL -DSDCC=256 -DSDCC_pic16 -D__pic16 -I"/usr/local/bin/../share/sdcc/include/pic16" -I"/usr/local/share/sdcc/include/pic16" "./test.c" + "/usr/local/bin/gpasm" -DSDCC_MODEL_SMALL -Dpic18f4520 -D__18F4520 -DSTACK_MODEL_SMALL -c "test.asm" -o "test.o" + "/usr/local/bin/gplink" -I"/usr/local/bin/../share/sdcc/lib/pic16" -I"/usr/local/share/sdcc/lib/pic16" -o test test.o crt0i.o pic18f4520.lib libsdcc.lib warning: processor mismatch in "/usr/local/bin/../share/sdcc/lib/pic16/crt0i.o"message: using default linker script "/usr/local/share/gputils/lkr/18f4520.lkr"warning: processor mismatch in "pic18f4520.o" Any input (or should that be output!) much appreciated ;-) -- This email and any attached files are confidential and copyright protected. If you are not the addressee, any dissemination of this communication is strictly prohibited. Unless otherwise expressly agreed in writing, nothing stated in this communication shall be legally binding. ------------------------------------------------------------------------ ------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
