Freescale Semiconductor, Inc.
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
Monitor Initialization Code Freescale Semiconductor, Inc.
move.w | #$7,ICEMSR | ; | clear level 7 interrupt |
or.w | #$FF80,ISR |
|
|
endm |
| ; | return |
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
INT_DOG: macro endm
;**************************************************
;Macros for use at application startup (EXEC)
;and stop (DONE). Normally these are empty.
;**************************************************
USR_EXEC: macro endm
USR_DONE: macro endm
****************************************************************************
*RESET OPTIONS
****************************************************************************
;**************************************************
;Contents of the "usr_reset" section. In the usual
;case, this is two longwords long, with the first word
;containing the value with which the processor
;loads up its stack pointer, and the second of
;which is the value with which the processor
;loads up its program counter. This will bring up
;the monitor on a hardware reset.
;**************************************************
USR_RESET: | macro |
|
|
dc.l | MON_STACKTOP | ; | stack pointer (default) |
dc.l | reset$$$ | ; | program counter (default) |
dcb.l | 6,0 |
|
|
endm |
|
|
|
;**************************************************
;Hard reset macro - contains very high priority
;instructions which must be executed immediately
;upon a hardware reset.
;**************************************************
RESET_HARD: | macro |
|
move.b | #$9,PGSEL | ; config PG0/DTACK to GPI/O,input |
move.w | #$2410,PLLCR | ; sysclk = VCO/1, enable clko |
move.l | #MON_STACKTOP,A7 | ; Install stack pointer |
move.w | #$2700,sr | ; mask off all interrupts |
move.b | #$1C,SCR | ; enable bus error timeout bit |
move.w | #0,RTCWD | ; disable watch dog |
move.b | #$03,PFSEL | ; select |
move.b | #$00,PBSEL | ; Config port B for chip select A,B,C and D |
move.b | #$00,PESEL | ; select *DWE |
move.w | #$08,ICEMCR | ; disable ICEM vector hardmap |
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