Originally Posted by blueroomelectronics

I've just started with C18, never needed C before. Hopefully 3V0 will post some code.

Do you want to see code that lights a single LED or code that multiplexes LEDs to light more then one at a time.

I have a series of programs that start with a single LED and end with multiplexing the LEDs using timers. I have posted some of the in the past. Maybe I need to get them collected in one place.

just looked at the schematics for Junebug. I think i understand the process of high/low and the how it works. This is cool.

What other BASIC programs can you use to program a pic in (freeware would be nice) just that as it being a hobby mostly im not trying to spend $150 to buy this program. I could buy a Junebug + Inchworm + Firefly for that price almost.

Originally Posted by AtomSoft

how about both? First a single LED then Multiplexed LEDs using timers.

I will try to collect them and publish them some place soon.

I Assumed that since it was a dead on match lol

I havent seen any basic examples like a how to. Some things newcomers might need/want to know.

1. How to set (a) single/multiple port(s) to Input or Output.
A.TRISA.7 = 1 ( This would set pin 7 on PortA to Input / 0 would be output)

2. How to set a Pin High(on)/Low(off)
A. High(PORTA.0) / Low (PORTA.0) // Set Pin 0 HIGH/LOW

3. This code below sets pins 0, 6 and 7 to inputs (used as a big off(low) i think)
TRISA.0 = 1
TRISA.6 = 1
TRISA.7 = 1


My questions are:
1. Is the above correct?
2. INTCON2.7=0 //What exactly does this do? (interrupt maybe? or PortB something?)
3. Config OSC = INTIO2, WDT = OFF, LVP = OFF
4. ADCON1 = %11110101 // Sets what to digital PortA ? How is this layed out like pin to digit?
5. OSCCON = $62 // 4 MHZ // But How is $62 = 4 MHZ ?
6. Maybe i missed something but what sets PortB as inputs ? in the module?


I know i ask alot of questions but its only to learn as not to be confused once i get my junebug.

1. no, TRIS simply sets the direction of the port (In = 1, Out = 0)
1a. LAT sets it high or low (so does PORT but LAT is better)
1b. PORT is used for reading the state of an input pin
2. INTCON2.7 should be written as INTCON2.NOTRBPU (same thing better syntax)
3. CONFIG sets the PIC defaults on power up
4. It's in the 18F1320 datasheet search for ADCON1
5. also in the datasheet the upper nibble sets the clock, lower the options
6. by default a port in Input and/ or Analog TRISA = %11111111 would set the entire port to input

Originally Posted by Pommie

Bill,
I looked for this in the 18F1320 include file and couldn't find it, in fact, none of the bit fields are defined. I also just tried it and it doesn't work. Is there something I am missing?

I've found quite a few errors like that in the Microchip include files. The 16F88 assembler include, in particular, is missing a lot of stuff and has many errors.

I just fix the include file, using the datasheet as a reference. Add whatever is needed and correct the errors. Simple enough. An incorrect include is pretty annoying.

Originally Posted by Pommie

Hi Futz,

I was talking about the Swordfish include file. This doesn't contain any bit variables whatsoever and I'm not sure how to declare them.

Oops! Never mind.

Opps it's NOT_RBPU, I've use RBPU as it looks nicer IMO than NOT_RBPU

Code:

;----- INTCON2 Bits ----------------------------------------------------
NOT_RBPU        EQU  H'0007'
RBPU            EQU  H'0007'
INTEDG0         EQU  H'0006'
INTEDG1         EQU  H'0005'
INTEDG2         EQU  H'0004'
TMR0IP          EQU  H'0002'
T0IP            EQU  H'0002'
RBIP            EQU  H'0000'

From the 18F1320.inc file