18f242 Mssp

[Ron Marcus]

I forgot the register set up. Sorry...

; MSSP REGISTER SETUP
BF VAR SSPSTAT.0 ; Buffer full status
CKE var SSPSTAT.6
SMP var SSPSTAT.7
WCOL VAR SSPCON1.7 ;Transmit write collision detect bit
SSPEN VAR SSPCON1.5 ; Enable MSSP
CKP var SSPCON1.4
SDI var PORTC.4 ; Synchronous data input
SDO var PORTC.5 ;Synch data output
SCK VAR PORTC.3 ;Synch clock output


SSPSTAT = %10000000
SSPCON1 = %00010010 ; SS port enable,idle high,SPI master clock/16
'************************************************* ****************
Main:
UART_SPI = 0
TRISC.2 = 0 :TRISC.3 = 0 :TRISC.4 = 1:TRISC.5 = 0 :TRISA.5 = 1
SMP = 0 : CKE = 0 : CKP = 1
Alfat_power = 1
pause 1500

I enable the SPI a little later in the program

[arniepj]

I believe the key to making it work was the pir1.3 interrupt.I used the MSSI port a while back with a Max1270 A/D chip.Attached is that code,look under Data Aquisition.

[Ron Marcus]

I believe the key to making it work was the pir1.3 interrupt.I used the MSSI port a while back with a Max1270 A/D chip.Attached is that code,look under Data Aquisition.

I will try this, but...
I am not using an interrupt in this application. Does it still need to be reset after every transmission?

Ron

[Ron Marcus]

O.K. I got it up and runnung. The interrupt flag idea led me to check all the flag bits. It turned out the buffer full flag was put in the wrong place and the program was running past the buffer before it was full. Thanks for the lead.

Ron