Table Look-ups

[jpanhalt]

Small typo? 16F1828 and 16F1829?

They have some interesting new instructions, including not only what you mention, but for my immediate purposes, expanded shift routines. Like, LSRF that places a zero in the MSB and ADDSFR. They are definitely worth trying out.

I will be ordering parts for the display module as well as the 12F1840 on Monday. I am concerned about programmability with my aging PicStart Plus, and I will also have to check for updates later today.

I noticed in the product selection tool that a small number of 16F chips have "graphical LCD" built-in support (16F913/916; 16F914/917; and 16F946). The 946 is TQFP only, so I will avoid if for now.

Do you have any opinion about that new functionality in the 16F91x series?

John

 

[Mike - K8LH]

Small typo? 16F1828 and 16F1829?

Yes, that was a typo'. Sorry. I meant to say 16F1938 and 16F1939...

 

[Mike - K8LH]

... I am concerned about programmability with my aging PicStart Plus ...

Oops! That could be a problem...

Do you have any opinion about that new functionality in the 16F91x series?

No. Sorry. But if I'm not mistaken, Bill (Blueroom) did some experimenting with them.

 

[jpanhalt]

It maybe moot. Just updated my PicStartPlus to version 4.50.11 from 4.30.03. Neither the 12F1840 nor 16F1828/1829 are supported. The 16F91x/946 are supported.

I will call Microchip tomorrow, but I suspect I am stuck for new adventures with the 16F91x series. I sure would like to try those newer chips.

John

 

[nickelflippr]

Small typo? 16F1828 and 16F1829?

They have some interesting new instructions, including not only what you mention, but for my immediate purposes, expanded shift routines. Like, LSRF that places a zero in the MSB and ADDSFR. They are definitely worth trying out.

I will be ordering parts for the display module as well as the 12F1840 on Monday. I am concerned about programmability with my aging PicStart Plus, and I will also have to check for updates later today.

I noticed in the product selection tool that a small number of 16F chips have "graphical LCD" built-in support (16F913/916; 16F914/917; and 16F946). The 946 is TQFP only, so I will avoid if for now.

Do you have any opinion about that new functionality in the 16F91x series?

John

I finally got around to driving a bare glass lcd (4 dgt. Lumex S401C71TR) with the 16f917. The '917 only does 24 segments in static mode, and that Lumex part is a static display, so only three digits. Tried to get 3 1/2 digits with some trickery, but couldn't get it to work. So be careful on the display selection that meets your needs.

EDIT: Now I remember, I tried to hijack the two unused dp's to create the 1/2 dgt "1". Still might work?

 

[jpanhalt]

I am just kind of daydreaming, but a display like this is what I am thinking of:
**broken link removed**

Envision that with a little tractor icon and pallet forks. The forks would move to show whether they were displaced up or down, and a number would show tilt in degrees or deflection in inches at the tip. That New Haven display is NHD-12864MZ-FSW-BGW-L. I am totally new to such displays, so any recommendations are appreciated.

If such graphics end up being too big a stretch for me, I will just revert to my 2X16 LCD from Parallax and show numbers.

John

 

[nickelflippr]

The KS0108B controller on that display is super common, and code snippets should be a plenty. Extra rom and ram would be nice to read from tables (icons) and write to the screen using buffers. I used a 18f4620 for this type of display, should be plenty of other options out there.