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| Search found 14 matches |
| Author | Message |
|---|---|
 Topic: Using a 18F4550 instead of 18F452 |
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| OE8PCK Replies: 3 Views: 3585 |
 Forum: General CCS C Discussion Posted: Wed Apr 29, 2009 3:01 am Subject: Using a 18F4550 instead of 18F452 |
Thanks very much for the useful information. All is now clear. The pins you mentioned are all used with the software, changing them would be like writing everything new. 
You have really helped ... |
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| Topic: Using a 18F4550 instead of 18F452 |
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| OE8PCK Replies: 3 Views: 3585 |
Forum: General CCS C Discussion Posted: Wed Apr 29, 2009 2:22 am Subject: Using a 18F4550 instead of 18F452 |
| Firstly I don't really know if this is a problem that can be EASILY solved on a forum.
I will explain what I want to do and then see if anyone is willing to look into it and what information they ne ... |
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| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Sun Apr 26, 2009 5:26 am Subject: Oscillator Problem |
| Problem solved. Ver. 4.088 works with 18F4550. Just tried it at a friends school lab.
Many thanks for the excellent coaching!!! Regards, Paul OE8PCK |
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| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Sun Apr 26, 2009 2:54 am Subject: Oscillator Problem |
| From ckielstra:
Even worse, v3.212 was an unstable version with some serious PIC18 problems. The v3.2xx version of the compiler became usable at v3.226. Your version apparently doesn't accept the ... |
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| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Sat Apr 25, 2009 9:29 am Subject: Oscillator Problem |
| Two comments:
1) Put the 'program' includes (stdlib, and flex_lcd), _after_ the setup lines (clock, and fuses). Not doing so, could lead to problems if there are delay statements in these. This shoul ... |
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| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Sat Apr 25, 2009 5:23 am Subject: Oscillator Problem |
| OK, so this is getting really spooky! I cannot get the 18f4550 to run a blinking led program. The oscillator runs ok, and wait for it, the chip are new out of a sample set of 5 that I got from Microch ... | |
| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Fri Apr 24, 2009 12:57 am Subject: Oscillator Problem |
| I have posted all that I am using. It works well with 18F452.
Paul OE8PCK #include<18f4550.h> #include<stdlib.h> #use delay(clock=20000000) #use rs232(baud=9600,xmit ... |
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| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Fri Apr 24, 2009 12:32 am Subject: Oscillator Problem |
| Sorry for some reason I was a guest. Everything is now working and the LCD displays everthing in one line. This all works on the 18F452 but not on the 18F4550. I suppose the compiler is at fault as yo ... | |
| Topic: Flexible LCD driver for 16x1 LCDs |
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| OE8PCK Replies: 13 Views: 136965 |
Forum: Code Library Posted: Thu Apr 23, 2009 4:09 am Subject: Flexible LCD driver for 16x1 LCDs |
| I have now got this working in one line. I changed the (LCD_width/2) to just (LCD_width) Works super with the 18F452... but I then tried the 18F4550 by just changing the include line and it does not w ... | |
| Topic: Flexible LCD driver for 16x1 LCDs |
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| OE8PCK Replies: 13 Views: 136965 |
Forum: Code Library Posted: Tue Apr 21, 2009 11:57 pm Subject: Flexible LCD driver for 16x1 LCDs |
| The manufacturer of the LCD is Batron TN11605.
At the moment the output to the LCD is cut off at the middle of the LCD and written, illegible, under the first line and I would like it in one line ... |
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| Topic: Flexible LCD driver for 16x1 LCDs |
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| OE8PCK Replies: 13 Views: 136965 |
Forum: Code Library Posted: Tue Apr 21, 2009 12:27 pm Subject: Flexible LCD driver for 16x1 LCDs |
| Hi, I have now got the 16x1 LCD test program to run BUT I cannot get the text to run to a single line although the Flex_lcd_16.c has this in the program listing. I am a complete beginner can you expla ... | |
| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Tue Apr 21, 2009 9:02 am Subject: Oscillator Problem |
| I have now got the oscillator working. It was an electronic problem. Program still does not work but I need to look into it more carefully. I am using a ICD2LE in combination with MPLAB ver. 8.00. the ... | |
| Topic: Problem with LED dot matrix display |
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| OE8PCK Replies: 4 Views: 5383 |
Forum: General CCS C Discussion Posted: Tue Apr 21, 2009 6:03 am Subject: Problem with LED dot matrix display |
I would suggest driving the leds through transistors, this way you can adjust the brightness with resistors. Driving directly on this scale does not seem to be a good idea. 
Paul OE8PCK |
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| Topic: Oscillator Problem |
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| OE8PCK Replies: 15 Views: 13667 |
Forum: General CCS C Discussion Posted: Tue Apr 21, 2009 4:36 am Subject: Oscillator Problem |
| I am a complete beginner and have just got past the blinking led stage.
I have successfully got the blinking led programs working on the 18F452 but BUT now my problem is that the 20 MHz Crystal wor ... |
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