12f609

[Macgman2000]

I am seeing strange behavior with the 12F609. I have a start up port toggle to let me know it is going through the code. When it gets to the debugin I can't seem to make the ports work.



INCLUDE "Modedefs.Bas"
@ DEVICE PIC12F609, MCLR_OFF, IOSCFS_8MHZ, INTRC_OSC_NOCLKOUT,protect_off



GPIO = 0
TRISIO = %001100

'TRISIO.0 ' Output
'TRISIO.1 ' Output
'TRISIO.2 ' Input IR module input
'TRISIO.3 ' Input turn off MCLR
'TRISIO.4 ' Output
'TRISIO.5 ' Output



DEFINE DEBUGIN_REG GPIO ' Set as software RX in
DEFINE DEBUG_BAUD 1200 ' Set bit rate
DEFINE DEBUGIN_BIT 2 ' Set GPIO bit 2
DEFINE DEBUGIN_MODE 1 ' Set Debugin mode: 0 = true, 1 = inverted


; VARIABLES
Payload VAR byte
pause 100 ' pause holds up startup initialization for programming


pause 1000
GPIO = %010001

pause 1000
GPIO = %000000

pause 1000
GPIO = %010001

pause 1000
GPIO = %000000



main:

debugin [wait (255), payload]
select case Payload
case 0 'All stop
GPIO = %000000

CASE 10 'Right spin
GPIO = %100000

CASE 50 'Left spin
GPIO = %000001

case 100 'Straight
GPIO = %010001

END SELECT
goto main

[Darrel Taylor]

Analog pins ...

ANSEL = 0

[Bruce]

Insert DEFINE OSC 8 when using IOSCFS_8MHZ

[Macgman2000]

Bruce nailed it. The ANSEL is superceded by the TRISIO according to the datasheet on all outputs, except for inputs where ANSEL is needed. I guess PBP was having timing issues since the define osc 8 was not declared.

Shouldn't that result in an error though? I can't see where you would want to let the compiler have opposing declarations.

Thanks guys!!!!

Nick