Bascom Terminal Problem

RWo · Joined: 23 Sep 2015 Posts: 22

Hello,

I'am using todays Bascom Demo on Vista. I'm very happy to find this tool but...

the first test program works but the terminal shows wrong asci.

Does anyone know what is wrong?

Thanks

(BASCOM-AVR version : 2.0.7.5 )

Printpix52 · Joined: 18 Jun 2014 Posts: 282 Location: D.F.

Try it with avr simulator .... Very Happy

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

you need to make sure that the processor is actually running at the speed you thin it is.
we have a simple test for that :

config portb=output ' some port or port pin

do
toggle portb
waitms 1000
loop

this code will toggle logic level on port each second. you should measure if that is true. if not, the calculated baud rate will not be right.
another option : test various baud rates in the terminal emulator.

last possible cause : osccal register must be calibrated. have a look at the samples\chip folder for some samples that use osccal.

RWo · Joined: 23 Sep 2015 Posts: 22

Thanks for your help.

But still it won't work. It seems there is no prob with the Baud or Clock. I receive the exact ammount on chars I've send from the AT.
Just the received chars looking like if there are shifted in the asci table. I have no more idea to get it done. See pic.

Printpix52 · Joined: 18 Jun 2014 Posts: 282 Location: D.F.

With my experimental works tarqueta STK500 not monitor looks like Japanese sign and simulator you work well if the monitor will check and comment .

Embarassed

Deanus · Joined: 26 May 2006 Posts: 188 Location: Adelaide

Hi RWO,
How about posting some code for people to look at and try for you.

Dean

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

and beside the test code, you should give more info about your hardware. how you connected the tx/rx to the PC is important.

RWo · Joined: 23 Sep 2015 Posts: 22

Ok,
the code is no secret. It's just somthing to test and learn about bascom for first time.

Now, I use a AVR_Board2014 with ATMega32 16PU, a Satellite Laptop with Vista. I reinstall the com driver (com4) and Bascom Demo. I test the AVR also on my old desktop with mkt-terminal. All has the same result. The chars are switch form Print "01234" to "pqrst" in the terminal.
I can't find the problem. Thanks for your efforts

ps. sorry for some mother tongue comments in the source

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

- how are your fuse bits set?

when you try something, keep the code simple :

RWo · Joined: 23 Sep 2015 Posts: 22

Thanks your replay

Terminal baud 16200 seems ok. But with >>the oscillator speed indeed is 16000000<< I have doubt.
I can't post the circuit diagramm cause of unknown copy right. The external cristal, Q2 on pins 12,13 says 14,7456MHz . Is this pehaps my problem?

"Config CLOCKDIV = 1" is not aceppted by the compiler.

I don't have much expierence in Basic, but I like to find a way to have a code witch is not waiting for external events e.g. b=waitkey() this stoping the code execution so far.

As I sad before, the code is just to get a taste of Bascom. I'm close to pension Cool

and not a lots of challenge to meet. Wasting my offtime with something. No sweat!

Thank to Mark and others

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

yes that is your problem !
your code should have : $crystal= 14745600
that is, if you have read the crystal value correct.

$crystal informs the compiler about the oscillator speed, it can not influence your hardware. so it would not set your hardware to 16 Mhz !

i advise to check the simple samples from the samples folder. also read the pdf manual to get an idea of what is possible and what isn't.

instead of waitkey you can use inkey, press F1 and you get help.

RWo · Joined: 23 Sep 2015 Posts: 22

YES it works! Very Happy

Thank you Mark!

The funny thing is, I received some sample code for this board with 16MHz configuerd. So is was never working before.
That teach me to ceck the complete package next time, before starting get lost in code making.

mmm, where are the sample folders? They don't come with the demo.

Printpix52 · Joined: 18 Jun 2014 Posts: 282 Location: D.F.

Hello everyone !!!! already work well with my tarqueta STK500 real monitor and simulator bascom all works fine and the need to establish fuse .

· Select the “Lock and Fuse Bits” tab and maximize the programmer window.

· Check if you see the following in the “Fusebit” section:

"1:Divide Clock by 8 Disabled"

"Int. RC Osc. 8 MHz; Start-up time: X CK + X ms; [CKSEL=XXXX SUT=XX]"

Thank you very much and am learning more ...... greetings !!

Very Happy