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Doh, I think I figured it out. Looks like RA3 can only be configured as an input. :o

Hi All,

Wow, it has been awhile since I've been here. Finally getting back into PIC's and I'm making a serial backpack using a 16F1503. I've managed to make one successfully in 4-bit mode using...

Bill,

I don't know that I can offer much more help, but it looks like Jerson and Dave have some excellent leads. When you mentioned seven segment displays from Futurelec, it rang a bell. I had a...

Bill,

I can't say I've cascaded the MAX7219, but I am using the MAX7221 IC on a project and am relatively familar with the datasheet. Some very silly questions, but important none the less.
...

BobK,

Thank you so very much for the schematic and link. I went through over 100 posts on a search for modem, but there are many ways to phrase the same question. I will look these over - the...

Hello all,

I've been asked to look for a way to communicate between two or more PICs, tentatively 18F series, over the DC power bus which is 9V. We have used TDA5051A modems to interface and...

archendekta,

How many seven segment displays do you want to control? If you only need one or two, use a BCD (binary coded decimal) to seven segment IC. Check out this circuit:
...

Sponge_Bob,

Tsk, tsk - you're lucky I'm in a generous mode tonight. :D Alright, first thing to do is open the PBP INC file for the 16F628A and comment out the config line. Assuming you're using...

Sponge_Bob,

I think I've got your solution. I've been doing similar things with LEDs lately and my favorite driver IC to date is the SP16DP05. It has 16 channels and uses a simple SPI interface...

Okay, I feel like a dolt, but at least I learned something today. Thanks Sayzer. :D

dbachman,

I haven't played with lookup in a while, but according to the manual, no. I assume you're trying to set the pins on portb high and low according to the value of digit. I haven't tested...

Now the question becomes, what can I change? Glad you asked, again assuming you've got Windows and everything is in the default location, open: C:\Program Files\Microchip\MPASM Suite. Now find and...

Fredrick,

Unfortunately, no. You have to search the datasheet quite a bit as every PIC is a little bit different. However, here's a way to make it relatively quick:

Open the .INC file for...

Fredrick,

Nope, they generally work the same. The only big factor when moving from one series to other, which is the same as going from one part number to another, is the config bits. I don't...

Joe S,

Thank you! I didn't think it was that simple. I'll use another chip with more memory. Thanks again.

Ladies & Gents,

I spent the weekend figuring out a workable code for using a DS1302 as a countdown timer. Unfortunately, everytime I attempt to compile I get the following:



Error[126] ...

.n0rig.,

As much as I love to help, I'm a bit short on time this week. It looks like you're heading in the right direction. My only advice to you at this point is to put something together and...

.n0rig.,

Ahh, okay. It's been years since I worked on an IR project, so I did a quick search on the forum under 'infrared' and found some postings you might want to check out:
...

.n0rig.,



Anyways, what I will need most help in will be the serout and serin to connect to the chip on the car to make the car move forward, back, etc.


By chip, do you mean the PIC or are...

.n0rig.,

I'll try to get more detail to you this evening if you need it, but here's some info to get you started.

The button command will work on any I/O so long as the pin you select is set to...

StoneColdFuzzy,

Could you post all your code up to your main routine? If we could see what intializations you've done, we might be able to better help. I assume you've set your TRISD register...

.n0rig.,

I can't speak too much to the IR transmitter you're looking at, but I can point you in the direction of some other options. If time and ease outweigh cost, one option is to use a...

Okay, I'm an idiot. I didn't realize a '1' in shiftin is for LSB, whereas a '1' in shiftout is MSB. I came across some other code (haven't tried it yet) on the forum that may help:
...

idtat,

I'm attempting to use the DS1302 myself with luck as well. Now, I haven't read through your code to any great extend, but one thing jumped out at me:



w_in:
mem = reg_adr ' Set mem...

Darrel,

Thank you! I do take great pride in my wiring. :D I hope at some point in the future to try out your Instant Interrupts routine, as I read they're all the rage. Thanks again for your...