diff options
| author | Christian Pointner <equinox@mur.at> | 2012-06-05 18:47:32 +0000 |
|---|---|---|
| committer | Christian Pointner <equinox@mur.at> | 2012-06-05 18:47:32 +0000 |
| commit | d6c89d35e7982789d256c9a66c39685af537ebcc (patch) | |
| tree | 39a7e652970fd61f6fc69a55849f83df2af7ae62 /software/idm | |
| parent | USB Manufacturer and Product (diff) | |
first working version of spi communication
git-svn-id: https://svn.spreadspace.org/mur.sat@503 7de4ea59-55d0-425e-a1af-a3118ea81d4c
Diffstat (limited to 'software/idm')
| -rw-r--r-- | software/idm/idm.asm | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/software/idm/idm.asm b/software/idm/idm.asm index d2d68bc..34bfced 100644 --- a/software/idm/idm.asm +++ b/software/idm/idm.asm @@ -43,7 +43,7 @@ TMP EQU H'0023' ;; ------------------------------------- ;; Interrupts org .4 - clrf BSR + movlb b'00000000' btfsc PIR1,SSP1IF goto int_spi retfie @@ -51,9 +51,12 @@ TMP EQU H'0023' int_spi bsf PORTA,7 bcf PIR1,SSP1IF - incf TMP,f - movf TMP,w + movlb b'00000100' + movf SSP1BUF,w + incf INDF0,f + movf INDF0,w movwf SSP1BUF + movlb b'00000000' bcf PORTA,7 retfie @@ -61,43 +64,39 @@ int_spi ;; INIT init ;; BANK 4 - movlw b'00000100' - movwf BSR - movlw b'00100100' - movwf SSP1CON1 + movlb b'00000100' + movlw b'01000000' + movwf SSP1STAT movlw b'00010000' movwf SSP1CON3 - movlw b'00000000' - movwf SSP1STAT + movlw b'00100100' + movwf SSP1CON1 ;; BANK 3 - movlw b'00000011' - movwf BSR + movlb b'00000011' clrf ANSELA clrf ANSELB ;; BANK 2 - movlw b'00000010' - movwf BSR + movlb b'00000010' ;; BANK 1 - movlw b'00000001' - movwf BSR + movlb b'00000001' movlw b'01111111' movwf TRISA movlw b'01110011' movwf TRISB ; movlw b'01011000' ; 1 MHz ; movlw b'01100000' ; 2 MHz -; movlw b'01101000' ; 4 MHz + movlw b'01101000' ; 4 MHz ; movlw b'01110000' ; 8 MHz - movlw b'01111000' ; 16 MHz +; movlw b'01111000' ; 16 MHz movwf OSCCON movlw b'00001000' movwf PIE1 ;; BANK 0 - clrf BSR + movlb b'00000000' clrf PIR1 movlw b'11000000' movwf INTCON @@ -105,7 +104,10 @@ init bcf PORTB,3 - clrf TMP + clrf FSR0H + movlw TMP + movwf FSR0H + clrf INDF0 ;; ------------------------------------- ;; MAINLOOP |