12F1822 + U-64 blink LED ... doesn't ? --[SOLVED .. mostly]

[gpsmikey]

compiler version 4.141
Debugger/programmer is U-64 (supplies power to target = 5v)
LEDs connected via 220 ohm resistor to RA4 and RA5 (just trying
to get RA4 (LED1) to work for now). Target does have 5v as
expected (installed jumper in U-64).

It seems to load OK (although not very fast). If I try to single
step, it starts with the arrow just below "main()" as expected.
Step causes it to point to "setup_comparator"
step causes it to point to "setup_oscillator"
step causes arrow to vanish.

Two items of interest - in main.h, where it indicates that
"this device not currently .... picwizard" - it had put the
string in there of "NC_NC_NC_NC", however according to the
devices file, it should be "NC_NC" which is what I put there
and it compiles with no errors. The other thing that I find
odd is that while the "setup_oscillator" indicates "OSC_1MHZ",
at the bottom of the debugger window it indicates
"Ready MCU at 0.50 MHz"

Just wanted to start with the simple blink an LED example since I
had not played with either the U-64 or the 12f1822 part before.
Obviously I am missing something - debugger gets lost and no
blinking. Pointers to what I am missing most welcome !!

[gpsmikey]

For what it's worth, here is the list file created - if I step through that file instead of the C source file, it makes it down to the last instruction before main of "CLRF 18" then vanishes.

[gpsmikey]

OK, it seems to be working - if I take out the line for "setup_oscillator()" and let the "#use delay" statement in the .h file stand, it initializes and runs as expected. Not too impressed - I had tried the simple "blink LED" program from within the wizard. The wizard apparently not only got the oscillator setup wrong in that statement, but also got confused on configuring the comparators. I think the "wizard" is wearing a dunce cap.

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[PCM programmer]

[gpsmikey]

Thanks PCM - I thought I had picked the simplest options available in the "wizard" when I ran it and selected the simplest 1mhz clock. Apparently not although one of the things that threw me off was when the wizard could not figure out what to do with the comparators (although it did leave a comment to that effect). Oh well, the blinking thing is working now - on ahead with adding features and hardware. I wasn't sure initially just what part of my configuration was not working since I had not used that chip or the U-64 before (and the documentation on the U-64 is very close to none ). I wish there were a good tutorial on using the U-64 (I found one in Spanish, but virtually nothing in English).

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[jeremiah]

Depends on what you want a tutorial on. CCS has some video tutorials on their website for some of the fancier options.

[gpsmikey]

When I looked around their website ( http://www.ccsinfo.com/content.php?page=video_tutorials ) the only one I could find targeting the U-64 was the one near the bottom labeled "ICD-U64 Example (Video in Spanish)". If anyone has a pointer to a decent tutorial on the U-64, I would appreciate a link to it. They really need to provide it with a manual that covers some basic setup (and the jumpers for providing target voltage) etc. They do have some stuff in the FAQ like the hookup etc. but there are some basics they should cover as well as guidelines for what it can support and what it does not support - one example, I found another users post (and he confirmed it) indicating that too large a cap on the 5v (or 3.3v) bus can blow the programmer (for battery stuff I like to have a 47 ufd in parallel with a .1 ceramic close to the chip). It is strange that they would have a Spanish version of the tutorial on their site, but not an English version (do I need to "push 1 for English" ? )
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[jeremiah]

The data streaming video as well as a few others on that page target the U-64 (they just don't have u-64 in the name) and are in English. They aren't basic setup tutorials.

You mentioned jumpers. My U-64 doesn't have any jumpers. Are you looking at a dev kit for those?

They could definitely use some easier to find documentation on the device.

[Ttelmah]

The classic caveat, is one often repeated here. "Don't trust the Wizard". It can work perfectly competently, but does _not_ check things.

The key here is that if you don't touch the 'Intr Oscillator Config' page, and just select the internal oscillator in the first screen, the Wizard will get it completely right. However if you select the Intr Oscillator page, there is a separate 'system clock select' block, which defaults to Timer1....

Best Wishes

[gpsmikey]

Thanks Ttelmah - that was probably what I did trying to make sure I had it set to simple. I have added your comment to my notes

jeremiah - actually, I think yours probably has the jumper for power as well - you have to pry the silly case open (I found it mentioned on one of their pages somewhere) and there is a 3 pin jumper you use if you want to select to power the target at either 3.3v or 5v. See this page on the connection information: http://www.ccsinfo.com/faq.php?page=connect_icd - the second paragraph under the connection table states that