diff options
Diffstat (limited to 'software/ttx/ttx.asm')
| -rw-r--r-- | software/ttx/ttx.asm | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/software/ttx/ttx.asm b/software/ttx/ttx.asm index 38b9254..b6b7bbb 100644 --- a/software/ttx/ttx.asm +++ b/software/ttx/ttx.asm @@ -32,11 +32,11 @@ LIST p=12F635 include "p12f635.inc" - __config _WUREN_ON & _FCMEN_OFF & _IESO_OFF & _BOD_OFF & _CPD_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_OFF & _WDT_OFF & _INTRC_OSC_NOCLKOUT + __config _WUREN_OFF & _FCMEN_OFF & _IESO_OFF & _BOD_OFF & _CPD_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_OFF & _WDT_OFF & _INTRC_OSC_NOCLKOUT ;; ------------------------------------- ;; DEFINES -BEACON_INT EQU .3 ; *2 = Beacon Interval in seconds +BEACON_INT EQU .21 ; *2 = Beacon Interval in seconds SECCNT EQU H'007D' CHAR EQU H'0041' @@ -60,25 +60,31 @@ STATUS_TEMP EQU H'007F' ;; ------------------------------------- ;; Reset Vector - org 0 + org .0 goto init ;; ------------------------------------- ;; Interrupt Vector - org 4 + org .4 ;; save context movwf W_TEMP swapf STATUS,W movwf STATUS_TEMP - btfss INTCON,INTF + bcf STATUS,RP0 + bcf STATUS,RP1 + + btfsc PIR1,TMR1IF goto tmr1_int ext_int ;; TODO: read bit from GPIO,SDAT and add to received string goto interrupt_end tmr1_int - decf SECCNT,f + bcf PIR1,TMR1IF + movf SECCNT,w + btfss STATUS,Z + decf SECCNT,f interrupt_end ;; restore context @@ -99,7 +105,7 @@ init movwf OPTION_REG movlw b'11111100' movwf TRISIO - movlw b'10000001' + movlw b'00000001' movwf PIE1 movlw b'00000000' movwf OSCCON @@ -107,13 +113,16 @@ init bcf STATUS,RP0 ;; bank 0 - movlw b'01010000' - movwf INTCON + clrf TMR1L + clrf TMR1H movlw b'00000111' movwf T1CON + movlw b'01000000' ; enable external interrupt bit4 + movwf INTCON + movlw b'00000111' movwf CMCON0 - + bcf GPIO,CWOUT bcf GPIO,CWENABLE @@ -329,13 +338,14 @@ main btfss STATUS,Z goto powerdown - ;; this gets called every BEACON_INT*2 seconds + ;; this gets called every 2*BEACON_INT seconds movlw BEACON_INT - movwf SECCNT + movwf SECCNT call send_beacon - + powerdown sleep + nop goto main ;; ------------------------------------- |