Author |
Message |
Topic: pointer arrays |
eaton
Replies: 1
Views: 3568
|
Forum: General CCS C Discussion Posted: Sat Sep 02, 2006 6:15 am Subject: pointer arrays |
does CCS fully support arrays of pointers to structures.
Thanks |
Topic: structure pointers |
eaton
Replies: 1
Views: 3117
|
Forum: General CCS C Discussion Posted: Fri Sep 01, 2006 6:44 pm Subject: structure pointers |
does the -> notation work in CCS. I can't seem to make it work.
(*struct_pointer).field will work but
struct_pointer->field doesn't work right.
any help would be greatly appreciated
... |
Topic: long pointer into byte data stream |
eaton
Replies: 4
Views: 6137
|
Forum: General CCS C Discussion Posted: Mon Jun 05, 2006 6:25 pm Subject: long pointer into byte data stream |
I have a stream of 8 bit values coming in. after capturing these 10 bytes in a buffer I want to assign a long pointer to the 2 bytes of interest and interpret them as a 16 bit value. This works fine e ... |
Topic: PWM |
eaton
Replies: 4
Views: 7553
|
Forum: General CCS C Discussion Posted: Mon Apr 10, 2006 8:56 am Subject: PWM |
I'm trying to communicate to a car using the SAE J1850 PWM protocol.
each bit is 24us long. a 1 is high for 8us and low for 16us while a zero is high for 16us and low for 8us. This sounded like a job ... |
Topic: PWM |
eaton
Replies: 4
Views: 7553
|
Forum: General CCS C Discussion Posted: Sat Apr 08, 2006 6:45 am Subject: PWM |
Hello,
I was wondering if anybody had a link to better explanation of using the compare module to output a PWM string of pulses for communication.
microchips AN594 tries to explain it but the co ... |
Topic: ID locations |
eaton
Replies: 2
Views: 10924
|
Forum: General CCS C Discussion Posted: Thu Mar 02, 2006 1:10 pm Subject: ID locations |
thanks,
As is usually the case I figured out what I was doing wrong after I posted the question
regards |
Topic: ID locations |
eaton
Replies: 2
Views: 10924
|
Forum: General CCS C Discussion Posted: Thu Mar 02, 2006 7:33 am Subject: ID locations |
Hello,
When using th #ID preprocessor directive is there a way to read these values using MPLAB after code protecting. I want to be able to read ID's on any returned products. The product itself ... |
Topic: reset supervisor |
eaton
Replies: 14
Views: 13676
|
Forum: General CCS C Discussion Posted: Sat Jan 07, 2006 7:17 am Subject: reset supervisor |
I'm still unclear on the connection of Rpu in fig.2 of TB087. if Vpp is applied here during programming and this resistor is 'normally' connected to Vdd then Vdd will rise to the Vpp level during prog ... |
Topic: reset supervisor |
eaton
Replies: 14
Views: 13676
|
Forum: General CCS C Discussion Posted: Fri Jan 06, 2006 6:47 pm Subject: reset supervisor |
thank you all,
I think the diode isolation shown in fig 5 of TB087 is the way to go. |
Topic: reset supervisor |
eaton
Replies: 14
Views: 13676
|
Forum: General CCS C Discussion Posted: Fri Jan 06, 2006 5:58 am Subject: reset supervisor |
Has anyone used a MCP111 voltage supervisor? I need to maintain the ICSP capability of my chip (18F252) but I don't understand the circuit shown in the data sheet. It shows the connection to pin 1(MCL ... |
Topic: function pointers |
eaton
Replies: 1
Views: 3702
|
Forum: General CCS C Discussion Posted: Tue Oct 25, 2005 9:08 am Subject: function pointers |
I have ver 3.232 of PCH. are function pointers supported?
if so what is the proper declaration of such in CCS. any examples would surely be appreciated.
int test_func1(void)
{
int j=0;
retu ... |
Topic: structure array size limit |
eaton
Replies: 2
Views: 5218
|
Forum: General CCS C Discussion Posted: Sun Aug 14, 2005 5:53 am Subject: structure array size limit |
Hello,
I have a structure that uses 18 bytes. I need an array of these. if the array size is greater than 14 it doesn't work. A 15 element array takes 270 bytes. 14 elements takes 252. Is there an ... |
Topic: interrupt issue |
eaton
Replies: 3
Views: 5335
|
Forum: General CCS C Discussion Posted: Sat Aug 06, 2005 8:59 am Subject: interrupt issue |
Hi,
What does this warning mean.
: Interrupts disabled during call to prevent re-entrancy: malloc
any help,as always is greatly appreciated
Thanks |
Topic: wake from sleep with timer3 overflow intterupt |
eaton
Replies: 1
Views: 4600
|
Forum: General CCS C Discussion Posted: Sat Jun 11, 2005 7:06 am Subject: wake from sleep with timer3 overflow intterupt |
Hi,
I'm trying to periodically check a value when the timer3 overflows. I want the PIC18 to sleep while waiting. I can't seem to wake up. before executing the sleep instruction I set timer3 to z ... |
Topic: code protection |
eaton
Replies: 2
Views: 7398
|
Forum: General CCS C Discussion Posted: Sun Mar 13, 2005 7:01 am Subject: code protection |
hello,
I inadvertently programmed a 18f252 with CPD(code protect on). Is it possible to erase this device and re-program? I thought a full erase would bring the chip back to being usable but it do ... |
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