Author |
Message |
Topic: Interesting phenomenon based on compiler versions |
neil
Replies: 7
Views: 8370
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Forum: General CCS C Discussion Posted: Wed Oct 24, 2012 7:17 am Subject: Interesting phenomenon based on compiler versions |
Oops! should have RTFM'd Thanks for clearing that up though!
Neil. |
Topic: Interesting phenomenon based on compiler versions |
neil
Replies: 7
Views: 8370
|
Forum: General CCS C Discussion Posted: Wed Oct 24, 2012 6:32 am Subject: byte boundaries within words screwed up! |
This is very interesting! I have not written any code for about 3 years and had to revisit an old project.
I found that I was getting garbage results for many of my functions which had previously wor ... |
Topic: Version 4 Comments |
neil
Replies: 270
Views: 411523
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Forum: General CCS C Discussion Posted: Wed Dec 13, 2006 10:54 am Subject: Addressmod? |
Have CCS abandoned addressmod or typemod completely? I am assuming somebody has actually reported it formally to them as being broken? It was mentioned near the beginning of this post. The problem bei ... |
Topic: Function pointer assignment back to front?? |
neil
Replies: 3
Views: 6203
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Forum: General CCS C Discussion Posted: Wed Nov 15, 2006 5:15 am Subject: Function pointer assignment back to front?? |
Hi, I understand that the & may be omitted and that CCS may still require it to be used. I actually prefer to use the & as it explains more when you glance at the code.
What I don't underst ... |
Topic: Function pointer assignment back to front?? |
neil
Replies: 3
Views: 6203
|
Forum: General CCS C Discussion Posted: Tue Nov 14, 2006 11:12 am Subject: Function pointer assignment back to front?? |
Hi again,
I am writing a menu for an LCD (please don't groan and stop reading yet!)
You know the story...
I couldn't get a pointer to function to work (using 3.249 or V4) so I wrote a test progra ... |
Topic: DMX512 = RS485 |
neil
Replies: 16
Views: 48346
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Forum: General CCS C Discussion Posted: Fri Aug 11, 2006 4:43 am Subject: DMX512 = RS485 |
A quick search on Google found this...
http://www.euro-pa.be/dmx.html |
Topic: Interrupts disabled during call to prevent re-entrancy |
neil
Replies: 7
Views: 23683
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Forum: General CCS C Discussion Posted: Thu Aug 10, 2006 6:25 am Subject: Interrupts disabled during call to prevent re-entrancy |
You should never make calls like read/write of peripherals from within an interrupt routine. Create a flag that is set by the interrupt and test for it in main, so you can do your I2C read/write from ... |
Topic: Rusty programmer needs reality check... |
neil
Replies: 4
Views: 6294
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Forum: General CCS C Discussion Posted: Thu Aug 10, 2006 5:19 am Subject: Rusty programmer needs reality check... |
Thanks Ttelmah,
I see that now!
I have just written another test prog, before I think about putting it into my real code. I am using Typemod to create some easily accessible variables in the inter ... |
Topic: Rusty programmer needs reality check... |
neil
Replies: 4
Views: 6294
|
Forum: General CCS C Discussion Posted: Tue Aug 08, 2006 2:32 am Subject: Rusty programmer needs reality check... |
Thanks, for the help.
Where you said the initialisation can't be done outside program flow, does this differ from standard C? K&R's book seems to allow the declaration of a pointer, then the as ... |
Topic: Rusty programmer needs reality check... |
neil
Replies: 4
Views: 6294
|
Forum: General CCS C Discussion Posted: Mon Aug 07, 2006 9:51 am Subject: Rusty programmer needs reality check... |
Hi, I haven't done any programming for about a year and have just had to get back into the swing of it. It has taken 3 weeks just to start feeling like I know my way around again!
I now want to wri ... |
Topic: strange array behaviour? |
neil
Replies: 5
Views: 6257
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Forum: General CCS C Discussion Posted: Tue Jul 18, 2006 9:09 am Subject: strange array behaviour? |
It's not justification, as the code snippet stated, it works if you read the adc into a temp variable and then copy it to the array. I'm pretty sure it's not the ADC at fault. Something strange is hap ... |
Topic: strange array behaviour? |
neil
Replies: 5
Views: 6257
|
Forum: General CCS C Discussion Posted: Tue Jul 18, 2006 7:26 am Subject: strange array behaviour? |
Hi, Can anyone explain this...
When I try to read the ADC into an array element (int16) the reading has an offset of 59904. This value changes with ADC reading. I changed the code to read the ADC i ... |
Topic: INT_RDA never stops? |
neil
Replies: 6
Views: 9453
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Forum: General CCS C Discussion Posted: Wed Dec 14, 2005 4:23 am Subject: Your ISR is too big! |
Hi, there are several things you are doing in your RDA ISR which are serious no-no's!
First, you are doing a lot of maths in your interrupt. Although the PIC18 has a hardware multiplier, unlike the ... |
Topic: Tx dead or wot! |
neil
Replies: 15
Views: 20249
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Forum: General CCS C Discussion Posted: Mon Dec 12, 2005 11:26 am Subject: Tx dead or wot! |
A MAX232 Chip is comparable in cost to a schmitt and an NPN. The only solution is to do it properly and not to marvel at the fact that it works when it really shouldn't!!!!
How about looking here: ... |
Topic: Any good or bad experiences with the CCS RTOS? |
neil
Replies: 3
Views: 6070
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Forum: General CCS C Discussion Posted: Tue Nov 29, 2005 8:07 am Subject: Any good or bad experiences with the CCS RTOS? |
Hi all, I've been looking at the CCS built-in RTOS and wondered if anyone had given it a good trial run. It looks like a fantastic idea and would certainly make programming easier for me, not having t ... |
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