diff options
| author | Christian Pointner <equinox@mur.at> | 2013-07-10 03:57:48 +0000 |
|---|---|---|
| committer | Christian Pointner <equinox@mur.at> | 2013-07-10 03:57:48 +0000 |
| commit | 297ac49867b750bfeeeca3a354619c527468cc41 (patch) | |
| tree | 25a2964671a5fa0a273dc56c5b9ac30ec0e28d17 /software/ihu/ihu.asm | |
| parent | fixed comment (diff) | |
added bootloader for IHU
git-svn-id: https://svn.spreadspace.org/mur.sat@807 7de4ea59-55d0-425e-a1af-a3118ea81d4c
Diffstat (limited to 'software/ihu/ihu.asm')
| -rw-r--r-- | software/ihu/ihu.asm | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/software/ihu/ihu.asm b/software/ihu/ihu.asm index a4c53a4..e84eb9a 100644 --- a/software/ihu/ihu.asm +++ b/software/ihu/ihu.asm @@ -32,8 +32,13 @@ LIST p=16F887 include "p16f887.inc" - __config _CONFIG1, _DEBUG_OFF & _LVP_OFF & _FCMEN_OFF & _IESO_OFF & _BOR_NSLEEP & _CPD_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_ON & _WDT_OFF & _XT_OSC - __config _CONFIG2, _BOR21V & _WRT_OFF + ;; This is specified via bootloader-IHU.asm + ;; __config _CONFIG1, _DEBUG_OFF & _LVP_OFF & _FCMEN_OFF & _IESO_OFF & _BOR_NSLEEP & _CPD_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_ON & _WDT_OFF & _XT_OSC + ;; __config _CONFIG2, _BOR21V & _WRT_OFF + +BOOTLOADER EQU H'003' +USERVECT EQU H'100' +ISRVECT EQU H'104' ;; ------------------------------------- ;; DEFINES @@ -114,12 +119,12 @@ STATUS_TEMP EQU H'007F' ;; ------------------------------------- ;; Reset Vector - org 0 + org USERVECT ; end of bootloader goto init ;; ------------------------------------- ;; Interrupt Vector - org 4 + org ISRVECT ; replocated ISR vector ;; save context movwf W_TEMP swapf STATUS,W @@ -199,7 +204,8 @@ init clrf PSTRCON ; disable pulse steering movlw b'00010000' ; preselct 125 kHz, clock source as configured by configuration word movwf OSCCON - movlw b'11001111' ; input: RA0-RA3(analog),RA6-RA7(OSC); output: RA4-RA5(1wire) + ;; movlw b'11001111' ; input: RA0-RA3(analog),RA6-RA7(OSC); output: RA4-RA5(1wire) + movlw b'11011111' ; input: RA0-RA3(analog),RA6-RA7(OSC), RA4(BOOTPIN); output: RA5(1wire) movwf TRISA movlw b'11111111' ; input: all (interrupts and stats) movwf TRISB @@ -235,14 +241,17 @@ init call i2c_init clrf TMR0 - bsf INTCON,GIE clrf TMP + bsf INTCON,GIE + + btfsc RTC_RST ; if RTC is already finished, initialize it! + call rtc_init ; this maybe happend already via interrupt but better save than sorry goto main ;; ------------------------------------- ;; TABLES - include "tables.inc" + include "tables.inc" ; this needs to stay inside 0x100 and 0x200 ;; ------------------------------------- ;; SUBROUTINES |