diff options
| -rw-r--r-- | software/ttx/ttx.asm | 41 |
1 files changed, 17 insertions, 24 deletions
diff --git a/software/ttx/ttx.asm b/software/ttx/ttx.asm index 260b380..077d57b 100644 --- a/software/ttx/ttx.asm +++ b/software/ttx/ttx.asm @@ -53,7 +53,8 @@ CWENABLE EQU GP0 CWOUT EQU GP1 SCLK EQU GP2 SDAT EQU GP4 - +CLK_1HZ EQU GP5 + ;; variables ;; page 0 only ELEMENT EQU H'0040' @@ -113,7 +114,7 @@ complete EQU .7 movwf STATUS_TEMP btfss INTCON,INTF - goto tmr1_int + goto clk_1hz_int ext_int bcf INTCON,INTF btfsc RX_STATE,complete @@ -155,17 +156,16 @@ ext_int_send_csum goto interrupt_end -tmr1_int +clk_1hz_int bcf STATUS,RP0 - bcf PIR1,TMR1IF - bcf T1CON,TMR1ON - clrf TMR1L - movlw b'10000000' - movwf TMR1H - btfsc NVSTATE,safe ; safe mode -> disable scheduler + btfss GPIO,CLK_1HZ + goto clk_1hz_int_low + + bcf INTCON,RAIF goto interrupt_end - bsf T1CON,TMR1ON +clk_1hz_int_low + bcf INTCON,RAIF movf SECCNT,f btfss STATUS,Z decf SECCNT,f @@ -362,28 +362,23 @@ init bsf STATUS,RP0 bcf STATUS,RP1 - movlw b'11000011' + movlw b'01000011' movwf OPTION_REG movlw b'11111100' movwf TRISIO - movlw b'00000001' - movwf PIE1 movlw OSC_LOW movwf OSCCON + movlw b'00100000' + movwf IOCA bcf STATUS,RP0 ;; bank 0 movlw b'00010110' movwf WDTCON - clrf TMR1L - movlw b'10000000' - movwf TMR1H - movlw b'00000110' - movwf T1CON - movlw b'01010000' + movlw b'00011000' movwf INTCON - + movlw b'00000111' movwf CMCON0 @@ -411,9 +406,6 @@ init movf BEACON_INT,w movwf SECCNT - btfss NVSTATE,safe ; safe mode -> disable scheduler - bsf T1CON,TMR1ON - bsf INTCON,GIE goto main @@ -781,7 +773,7 @@ ack_parity ;; MAINLOOP main ;; this gets called after reset and whenever a wakeup occured - ;; (after TMR1 overrun or interrupt on GP2) + ;; (after GP5 change or interrupt on GP2) movf SECCNT,f btfsc STATUS,Z goto seccnt_zero @@ -793,6 +785,7 @@ main seccnt_zero movf BEACON_INT,w movwf SECCNT + btfsc NVSTATE,safe call send_beacon goto powerdown |