gnupic: 18f c and asm, sdcc only ok, +asm+gplink problem
Subject:
18f c and asm, sdcc only ok, +asm+gplink problem
From:
xgpasm ####@####.####
Date:
11 Jan 2013 11:39:52 -0000
Message-Id: <loom.20130111T114737-299@post.gmane.org>
Hi aLl,
I'm lost, i've spend time on this, i'm sure i've forget something basic, but
i cant' figure out ! Sorry for my crap description below, but i don't know
howto
explain it.
Compilation using the Makefile show no error, but the program is not working.
If i use only sdcc with no -c flag (command below), the main it's work
perfectly, but no asm is include, -c flag effect.
sdcc -I/usr/share/sdcc/include/pic16 -I./include -I./lib -I./ -mpic16 -p18f2455
--verbose uart18f.c
When i link using the Makefile to existing asm code, the program is not working
and gpsim show this error :
gpsim -c uart18f.stc
Read: 0x0000 from REG000(0x0000)
Wrote: 0x0000 to postdec1(0x0FE5) was 0x0000
Wrote: 0x00D3 to fsrl1(0x0FE1) was 0x00D4
Wrote: 0x000F to fsrh1(0x0FE2) was 0x000F
Invalid Trace entry: 0x0
I see that the program didn't start where i need to start, i mean, in the
source memory view, the cursor is never moving, but something is running
in background....very strange..
FYI...I'm using this Makefile for different other code using 16f arch, but
in 18f it fail.
Any help would be very appreciated...thanks in advance
xgpasm
Version :
sdcc -v
SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.9.0
#5416 (Feb 3 2010) (UNIX)
gpasm -v
gpasm-0.13.7 beta
gplink -v
gplink-0.13.7 beta
Makefile :
==========
INCLUDE=-I/usr/share/sdcc/include/pic16 -I./include -I./lib -I./
PROCESSOR_FLAG=-mpic16
PROCESSOR_TYPE=-p18f2455
CC=sdcc
AS=gpasm
PROC=-Dpic18f2455i
PROC_FLAG=-D__18f2455i
CFLAGS=-c --verbose
LNK=gplink
INC=-I/usr/share/sdcc/lib/pic16
LKR=-s/usr/share/gputils/lkr/18f2455i.lkr
LIBPROC=/usr/share/sdcc/lib/pic16/libdev18f2455.lib
/usr/share/sdcc/lib/pic16/libio18f2455.lib /usr/share/sdcc/lib/pic16/libc18f.lib
LIBSDCC=/usr/share/sdcc/lib/pic16/libsdcc.lib
LIBM=/usr/share/sdcc/lib/pic16/libm18f.lib
HEX_FILES=uart18f.hex
all: clean $(HEX_FILES)
%.hex: %.c
$(CC) $(INCLUDE) $(PROCESSOR_FLAG) $(PROCESSOR_TYPE) $(CFLAGS) $<
# $(AS) $(PROC) $(PROC_FLAG) -c $*.asm -o $*.o
$(AS) $(PROC) $(PROC_FLAG) -c lib/utils2.asm -o utils2.o
$(LNK) $(INC) $(LKR) -d -m -c -o $* uart18f.o utils2.o $(LIBPROC) $(LIBPROC1)
$(LIBSDCC)
clean:
$(RM) *.asm *.cod *.lst *.hex *.p *.d *.lnk *~
usart18f.c
==========
#pragma stack 0x200 0xff /* (<- always first line in main.c) */
#define __18F2455i
#include <pic18f2455.h>
#include <uart18f.h>
#include <utils2.h>
#include <stdio.h>
#include <usart.h>
code char at 0x300000 CONFIG1L = 0x24; // USB, /2 post (48MHz), /5 pre
(20 MHz)
code char at 0x300001 CONFIG1H = 0x0c;// IESO=0, FCMEN=0, HS (20MHz)
code char at 0x300002 CONFIG2L = 0x20;// Brown out off, PWRT On
code char at 0x300003 CONFIG2H = 0x00;// WDT off
code char at 0x300004 CONFIG3L = 0xff;// Unused configuration bits
code char at 0x300005 CONFIG3H = 0x01; // No MCLR, PORTB digital, CCP2 - RC1
code char at 0x300006 CONFIG4L = 0x80;// ICD off, ext off, LVP off, stk
ovr off
void initUsart()
{
usart_open( // Use USART library to initialise the hardware
USART_TX_INT_OFF
& USART_RX_INT_OFF
& USART_BRGH_HIGH
& USART_ASYNCH_MODE
& USART_EIGHT_BIT,
129
);
stdout = STREAM_USART;
stdin = STREAM_USART;
}
//
// Main program :
//
void main(void)
{
unsigned long loop=0;
OSCCON = 0x60; /* 0011 0000 */
TRISB=0b10101001; //
TRISA=0b00010111; // All analog input
TRISCbits.TRISC7 = 1; // RX (1:input)
TRISCbits.TRISC6 = 1; // TX (0:output)
initUsart();
printf("Init done\n");
loop=0;
while ( loop == 0) {
if (usart_drdy())
{
unsigned char rxByte;
_asm clrwdt _endasm;
rxByte = usart_getc();
usart_putc(rxByte);
if (rxByte == 'x')
{
printf("Ho oui tu m'excites!!!\n");
loop = 1;
}
}
}
}
utils2.asm
==========
PROCESSOR 18f2455
Radix DEC
EXPAND
#include "p18f2455.inc" ; Include header file
UDATA
CBLOCK 0x060
; Send 232
cycl_1, cycl_2, Byte, rxData
; -----------
;TOTAL 3 byte d'usage general
; -----------
ENDC
OledIn equ 7 ; Rxd <- Txd oled
OledOut equ 6 ; Txd -> Rxd oled
CODE
;**********************************************************
; Timer pour 1 bit
; 115000 Bps
_rs115bps
movlw D'8'
movwf cycl_2
_rs115wait ; 4 cycles
nop
decfsz cycl_2, 1
goto _rs115wait
return
;**********************************************************
; Timer de 1/2 bit
; 115000 Bps
; 3 x 200ns x 3 = 1.8us
_rs115half
movlw D'3'
movwf cycl_2
_rs115half2
nop ; 4 cycles
decfsz cycl_2 , f
goto _rs115half2
return
GLOBAL _RX_Oled,_Send_Oled
end
uart18f.h
=========
extern void Send_Oled(unsigned char c);
extern unsigned char RX_Oled(void);
FOR GPSIM
==========
uart18f.conf
============
# Module libraries:
module library libgpsim_modules.so
# Modules:
# pic18f2455i.CONFIG=$ff
pic18f2455.WarnMode=true
pic18f2455.SafeMode=true
pic18f2455.UnknownMode=true
pic18f2455.BreakOnReset=true
pic18f2455.BreakOnInvalidRegisterRead=true
pic18f2455.BreakOnInvalidRegisterWrite=true
pic18f2455.frequency=20000000.000000000
pic18f2455.xpos=144.0000000000000
pic18f2455.ypos=192.0000000000000
module load usart U1
U1.rxbaud=9600
U1.txbaud=9600
U1.rx=13
U1.tx=0
U1.crlf=true
U1.loop=false
U1.console=true
U1.xpos = 300
U1.ypos = 192
# Connections:
# receive from xbee
node n_xbee_rx
attach n_xbee_rx portc7 U1.TXPIN
# transmit to xbee
node n_xbee_tx
attach n_xbee_tx portc6 U1.RXPIN
uart18f.stc
# ----------- myproject.stc ---------------
load s uart18f.cod
frequency 20000000
load c uart18f.conf
# -----------------------------------------
Sorry for the spam ;-))
