nmra-test is not a sensible program - it looks like a copy of reply-serial with some...

diff --git a/cebpic/nmra-test.asm b/cebpic/nmra-test.asm
deleted file mode 100644 (file)
index d3eee85..0000000
--- a/cebpic/nmra-test.asm
+++ /dev/null
@@ -1,111 +0,0 @@
-
-; general initialisation
-; set up serial port
-; set up 58us timer loop (actually longer for 1st test version
-
-; receive bytes from computer
-; send when computer has sent complete stream (wait for stop, or for 9x1?)
-;
-~
-
-
-; pin 21 (per-pic-led, RD2/PSP2/C1IN) states: high H = green, low L = red, float Z = black
-
-        include         /usr/share/gputils/header/p18f458.inc
-
-       org     0
-       goto    initialise_serial
-
-; interrupt routine call - this needs to be at 00008h (high priority interrupt)
-
-       org     000008h
-       goto    interrupt_high
-
-; interrupt routine call - this needs to be at 000018h (low priority interrupt)
-
-       org     000018h
-       goto    interrupt_low
-
-
-       code
-
-initialise_serial
-
-; globally enable interrupts - p77
-       bsf     RCON,7,0        ; enable priority levels
-       bsf     INTCON,7,0      ; enable high-priority interrupts
-       bsf     INTCON,6,0      ; enable low-priority interrupts
-
-; initial config - RCSTA register p182
-        bsf    RCSTA,7,0       ; serial port enable (p182)
-       bsf     RCSTA,6,0       ; 8-bit reception
-       bsf     RCSTA,4,0       ; enable continuous receive
-
-       bcf     TXSTA,4,0       ; asynchronous mode
-
-; set SPBRG to get correct baud rate according to table top right p186
-; (Tosc = 20MHz, desired baud rate = 9600)
-       bsf     TXSTA,2,0       ; set high baud rate
-       bsf     SPBRG,7,0
-       bsf     SPBRG,0,0
-
-; interrupt set-up for serial receive
-       bsf     PIE1,5,0        ; enable USART receive interrupt (p85)
-       bsf     IPR1,5,0        ; set to low-priority interrupt
-
-
-; LED pin (21) initialisation
-        bcf     TRISE,4,0       ; turn off PSPMODE (Data Sheet p100/101)
-
-
-; timer0 (main loop LED flash) initial config
-        bcf     T0CON,6,0       ; p107 Timer0 -> 16bit mode
-        bcf     T0CON,5,0       ; timer0 use internal clock
-       bcf     INTCON,5,0      ; clear TMR0IE => mask interrupt
-        bcf     T0CON,3,0       ; use prescaler
-        bcf     T0CON,2,0       ; }
-        bsf     T0CON,1,0       ; } prescale value 1:8 (13ms x 8)
-        bcf     T0CON,0,0       ; }
-
-; timer2 (nmra 58us period) initial config (p115)
-
-
-
-main
-       call    led_green
-        call    waiting
-       call    led_black
-        call    waiting
-       goto    main
-
-
-waiting
-        bcf     INTCON,2,0      ; clear timer0 interrupt bit (p109)
-        clrf    TMR0H,0         ; p107 set high bit of timer0 to 0 (buffered,
-                                ; so only actually set when write to tmr0l occurs)
-        clrf    TMR0L,0         ; set low bit o timer0 - timer now set to 0000h
-loop
-        btfss   INTCON,2,0      ; check whethr tiomer0 interrupt has been set -
-                                ; skip next instruction if so
-        bra     loop
-        return
-
-
-interrupt_high
-; needed?
-
-interrupt_low
-       btfss   PIR1,5,0        ; check whether serial receive interrupt bit set
-       
-       btfss   PIR1,5,0        ; check whether timer interrupt bit set
-       call    led_red
-       clrf    WREG            ; clear working register
-       movff   RCREG,WREG      ; read data out of serial receive buffer -> WREG
-       incf    WREG            ; increment WREG
-       movff   WREG,TXREG      ; write data out of WREG -> serial transmit buffer
-       retfie
-; *** retfie 1 or 0?
-; *** also need to clear specific interrupt bits in software
-
-
-       end