HI-TECH Software Forums: Linking Problem

BYTE *pRTCPtr;
far DWORD g_dwRTCTicks; // 4 Bytes Variable
far BYTE g_byRTCTime[6];// RTC Timer Data Value Array

pRTCPtr = (BYTE*)&g_dwRTCTicks; // 4 Byte RTC Time Ticks in seconds
pRTCPtr[0] = g_byRTCTime[2];
pRTCPtr[1] = g_byRTCTime[3];
pRTCPtr[2] = g_byRTCTime[4];
pRTCPtr[3] = g_byRTCTime[5];

Well the Code is compiled now successfully after struggling for proper documentation and sample code. But still the code does not execute as expected, it appears that large number of variables initialization takes up too much time that watchdog triggers by that time. I tried to had powerup.as module to disable watchdog but seems it did not work or may be I am not doing the correct steps.

Here is the ASM file for powerup.as
Code:

 
PSECT	text,class=CODE

GLOBAL	powerup,Init_Device
PSECT text

powerup:
	jmp	Init_Device

PCA_Init:
    anl  0D9h,    #0BFh
    mov  0D9h,    #000h
    ret

Voltage_Reference_Init:
    mov  0D1h,    #017h
    ret

Port_IO_Init:
    mov  0F2h,   #0F0h
    mov  0A4h,   #0D5h
    mov  0A5h,   #070h
    mov  0A6h,   #0FFh
    mov  0D5h,   #00Fh
    mov  0E1h,   #003h
    mov  0E2h,   #040h
    ret

Init_Device:
    lcall PCA_Init
    lcall Voltage_Reference_Init
    lcall Port_IO_Init
    ret

Could not find the interface for external startup routine.

Code size after compilation is around 40% less as compared with SDCC but first I need to test if everything work fine or not.

Overall here are my observations about the compiler

1. If a C file does not have function main() the compiler crash every time.
2. Manual says memory model can be Small, Medium and Huge but Compiler Supports only Small & Huge
3. We can not specify inappropriate memory model using command line option, it is selected automatically and if Huge model is specified where small can work, there are many syntax errors thrown by the compiler, instead of showing the exact problem.
4. There is no Interrupt Vector Table Translation, each ISR is required to have actual Jump Address to be specified.
5. If a pointer is used to point Code area, the same can not be used to point external RAM area, compiler gives Error.
6. User Startup interface not defined clearly, how to have application specific code before main().
7. SiLabs IDE 3.31 interface does not like to have project defined due to reason 1 as above or may be more, but works with batch file and takes too long time for compilation. Yet to check if Debug works or not.

Finally now compiler is also going to expire in 1-2 days, let me know if I should drop it here.

Regards
Pavan



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