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  Topic: Help me.... Help me
mattcro

Replies: 1
Views: 228

PostForum: BASCOM-AVR Archive   Posted: Fri Apr 11, 2008 11:14 am   Subject: Help me.... Help me
Only the demo version is free, but it's still very useful for small hobby projects. Download/info here: http://www.mcselec.com/index.php?option=com_docman&task=doc_details&gid=139&Itemid=5 ...
  Topic: i/o pin
mattcro

Replies: 2
Views: 430

PostForum: BASCOM-AVR Archive   Posted: Thu Apr 10, 2008 7:53 pm   Subject: i/o pin
You are missing a "wait 1" after the "reset portc.1" - without this the relay will turn off, but only for a few microseconds!

Try this to make the LED/relay turn ON for 1 second then OFF for 1 seco ...
  Topic: Accurate timing
mattcro

Replies: 14
Views: 1449

PostForum: BASCOM-AVR Archive   Posted: Thu Apr 10, 2008 7:46 pm   Subject: Accurate timing
The prescaler affects only the timer clock rate, not the CPU clock rate.

The CPU is clocked from the crystal oscillator (or whatever clock you specify in the fuses) and the timer is clocked by the ...
  Topic: Precise clock (second of day, etc)
mattcro

Replies: 7
Views: 866

PostForum: BASCOM-AVR Archive   Posted: Thu Apr 10, 2008 11:05 am   Subject: Precise clock (second of day, etc)
The mega32 can use a 32kHz watch crystal directly (on pins 28/29 of DIP package, no other components needed!) to keep time of day fairly accurately (provided it's always powered on). You can just use ...
  Topic: Session timeouts, cookies, "remember me" at login
mattcro

Replies: 3
Views: 2078

PostForum: New WebSite   Posted: Sun Apr 06, 2008 5:20 pm   Subject: Session timeouts, cookies, "remember me" at login
I haven't heard anything on the topic since my post above... it's a handy feature which I use on several other forums so would be nice to have it here.
  Topic: Control regulator from CPU
mattcro

Replies: 3
Views: 305

PostForum: BASCOM-AVR Archive   Posted: Sun Apr 06, 2008 5:17 pm   Subject: Control regulator from CPU
Assuming the regulator is NOT powering the AVR, you should be able to disable the regulator, send the AVR to sleep, and it will hold the regulator in 'off' mode. When you wake up the AVR, you can enab ...
  Topic: Is memory preserved on powerdown?
mattcro

Replies: 6
Views: 379

PostForum: BASCOM-AVR Archive   Posted: Sat Apr 05, 2008 6:16 pm   Subject: Is memory preserved on powerdown?
AFAIK, everything (SRAM, registers...) is perserved during the sleep modes. It's just the internal clock signals that are disabled/stopped, in varying combinations depending on sleep mode.

As for t ...
  Topic: SD interface board
mattcro

Replies: 6
Views: 1941

PostForum: AVR-DOS   Posted: Wed Apr 02, 2008 8:26 pm   Subject: SD interface board
I've got some I made myself, but they're mine and I'm not giving them away Smile

Here are some pics - both of these were used in development with the STK300 board (connect to PortB) and are OK for pr ...
  Topic: Hex versus decimal
mattcro

Replies: 4
Views: 286

PostForum: BASCOM-AVR Archive   Posted: Tue Mar 25, 2008 10:01 pm   Subject: Hex versus decimal
You say your device (sounds like an LCD module??) requires input in hexadecimal, but with the Printbin statement you are simply giving it several bytes of data - not hex or decimal, just plain byte va ...
  Topic: Problems with 1.11.9.0 ? ? ?
mattcro

Replies: 32
Views: 2608

PostForum: BASCOM-AVR Archive   Posted: Sun Mar 23, 2008 10:51 pm   Subject: Problems with 1.11.9.0 ? ? ?
I'm working with Wattsy (who started this thread) on the project which first caused us problems with the UART1 buffered RX failing on the M128 and M2561 in v9.0, having tried to upgrade from v8.3.

...
  Topic: RS232 + Terminal
mattcro

Replies: 2
Views: 444

PostForum: BASCOM-AVR Archive   Posted: Tue Feb 19, 2008 8:59 pm   Subject: RS232 + Terminal
How are you connecting the MP3 player to the microcontroller? Or are you trying to use the simulator to run your code? You should be able to select the com port in Bascom: Options>Simulator

If y ...
  Topic: How can I have a backlight delay on an lcd
mattcro

Replies: 2
Views: 350

PostForum: BASCOM-AVR Archive   Posted: Mon Feb 18, 2008 3:58 pm   Subject: How can I have a backlight delay on an lcd
An Ross says, you need to use an external transistor (either MOSFET or bipolar) to swtich the backlight power - the current is too high for an AVR port pin.

To get the backlight to switch off "auto ...
  Topic: Polynomial Curve Fit
mattcro

Replies: 5
Views: 411

PostForum: BASCOM-AVR Archive   Posted: Mon Feb 11, 2008 7:32 pm   Subject: Polynomial Curve Fit
A lookup table would certainly be faster than all that math, but to get good precision (if necessary) you'd have to dedicate a chunk of memory (program flash) to the table. That's not so bad because y ...
  Topic: Session timeouts, cookies, "remember me" at login
mattcro

Replies: 3
Views: 2078

PostForum: New WebSite   Posted: Thu Feb 07, 2008 9:35 pm   Subject: Session timeouts, cookies, "remember me" at login
I know there have been a few posts a while ago about forum login issues, but...

I'd love to have a "remember me" (aka "keep me logged in") option at login, so that I can come back to the forum afte ...
  Topic: Led fading with PWM
mattcro

Replies: 7
Views: 2133

PostForum: BASCOM-AVR Archive   Posted: Thu Feb 07, 2008 9:21 pm   Subject: Led fading with PWM
Did you get Visovian's code working ok?

The tiny45 is actually a smaller chip (8 pins) but it has 3 PWM channels, using timer0 and timer1 (both 8bit).

The tiny2313 has 4 PWM channels - 2 on time ...
 
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