CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to CCS Technical Support

Search found 25 matches
CCS Forum Index
Author Message
  Topic: how to printf a floating number in the format of 00.00 ?
John_Lintern

Replies: 2
Views: 5601

PostForum: General CCS C Discussion   Posted: Tue Nov 29, 2005 5:13 am   Subject: how to printf a floating number in the format of 00.00 ?
How can I force the floating variables to be displayed in the format of say 00.00 for example ?

I am trying to send some variables down the RS232, some of which are integers and some of which are f ...
  Topic: How to load 6 variables into an array, but in order of size?
John_Lintern

Replies: 1
Views: 4585

PostForum: General CCS C Discussion   Posted: Tue Nov 15, 2005 9:35 am   Subject: How to load 6 variables into an array, but in order of size?
I have written some code which calculates six int16 values to be loaded into CCP1.

Say for example, my code calculates the following values...

A_RisingEdge=12500;
C_FallingEdge=31250;
B_Ris ...
  Topic: How to output 0�,120� & 240� phase shift from squarewave
John_Lintern

Replies: 2
Views: 4906

PostForum: General CCS C Discussion   Posted: Tue Nov 15, 2005 9:15 am   Subject: How to output 0�,120� & 240� phase shift from squarewave
Thanks Mark,

I have written code to calculate the CCP1 interrupts for the rising and falling edges on each phase.

Using a period which gives a Timer1 measurement of 37,500 (60ms period) and a de ...
  Topic: How to output 0�,120� & 240� phase shift from squarewave
John_Lintern

Replies: 2
Views: 4906

PostForum: General CCS C Discussion   Posted: Tue Nov 15, 2005 6:06 am   Subject: How to output 0�,120� & 240� phase shift from squarewave
Please help.... I'm so near yet so far !!

I have a squarewave input of a variable frequency from 15Hz to 30Hz.

I want 3 outputs to fire the gates of 3 triacs.

These outputs need to be phase s ...
  Topic: How to program PIC16F877A through rs232
John_Lintern

Replies: 9
Views: 25171

PostForum: General CCS C Discussion   Posted: Tue Oct 25, 2005 4:20 am   Subject: How to program PIC16F877A through rs232
I copied and pasted your code into my version of CCS and it compiled without any errors.

So it must be something to do with your version or installation of CCS ?

Are you able to get an update of ...
  Topic: How to program PIC16F877A through rs232
John_Lintern

Replies: 9
Views: 25171

PostForum: General CCS C Discussion   Posted: Mon Oct 24, 2005 2:12 am   Subject: How to program PIC16F877A through rs232
jump_to_isr is a function.

for some reason when you are compiling your code the function is not defined or recognised by the compiler.

what version of compiler are you using ?

in CCS go to 'H ...
  Topic: How to program PIC16F877A through rs232
John_Lintern

Replies: 9
Views: 25171

PostForum: General CCS C Discussion   Posted: Thu Oct 20, 2005 3:04 am   Subject: How to program PIC16F877A through rs232
I have recently used the bootloader that comes with the examples for the CCS compiler called "ex_bootloader.c"

Have you got this example ?

By pulling a pin low when you reset the PIC, the bootlo ...
  Topic: write_eeprom & read_eeprom does not work on PIC18F452?
John_Lintern

Replies: 3
Views: 6321

PostForum: General CCS C Discussion   Posted: Thu Sep 08, 2005 5:59 am   Subject: write_eeprom & read_eeprom does not work on PIC18F452?
Ive just found out.... I can read the eeprom but not write to it.

So its as if its protected ?

But I have set the config for it not to be write protected using the statement....

#FUSES NOWRTD ...
  Topic: write_eeprom & read_eeprom does not work on PIC18F452?
John_Lintern

Replies: 3
Views: 6321

PostForum: General CCS C Discussion   Posted: Thu Sep 08, 2005 5:47 am   Subject: write_eeprom & read_eeprom does not work on PIC18F452?
I am emulating a PIC18F452 on an ICE2000 (using the PCM18XH2 processor module).

However, the commands write_eeprom & read_eeprom do not to work ?

When I use a breakpoint on the statement... ...
  Topic: How to use output_bit or output_high with a variable
John_Lintern

Replies: 9
Views: 27291

PostForum: General CCS C Discussion   Posted: Wed Sep 07, 2005 8:03 am   Subject: How to use output_bit or output_high with a variable
I am trying to use the 'pin' parameter as a variable in the command output_bit.

e.g output_bit (pin, value)

I want the 'pin' parameter to be a variable so that the output bit depends on the val ...
  Topic: ex_bootloader - problem using interrupts in application prog
John_Lintern

Replies: 22
Views: 24156

PostForum: General CCS C Discussion   Posted: Tue Sep 06, 2005 9:12 am   Subject: ex_bootloader - problem using interrupts in application prog
I have blown a PIC18F452 with the ex_bootloader.c example program supplied with CCS.

This works fine and I have successfully downloaded a simple application program via the RS232 which flashes an L ...
  Topic: Bootloader or In Circuit Serial Programming (ICSP) ?
John_Lintern

Replies: 3
Views: 4900

PostForum: General CCS C Discussion   Posted: Thu Aug 25, 2005 2:56 am   Subject: Bootloader or In Circuit Serial Programming (ICSP) ?
I am using a PIC16F877A which I need to reprogram whilst the PIC remains in circuit.

Which would be the best method to use, the bootloader method or the ICSP method ?

I want to connect my circui ...
  Topic: How can I store and use an array in EEPROM ?
John_Lintern

Replies: 4
Views: 6481

PostForum: General CCS C Discussion   Posted: Tue May 24, 2005 8:05 am   Subject: How can I store and use an array in EEPROM ?
Store the arrays in ROM.
Copy an array into RAM buffer and pass a pointer to your function.

Thanks Mark,

I'm trying to do what you suggested.

I've now stored all my arrays of data in ROM (pr ...
  Topic: How can I store and use an array in EEPROM ?
John_Lintern

Replies: 4
Views: 6481

PostForum: General CCS C Discussion   Posted: Tue May 24, 2005 5:47 am   Subject: How can I store and use an array in EEPROM ?
I've been using arrays which I have been storing RAM.

Below is an example of how I initialised my arrays in RAM...


int ShiftSchedCold_1to2[2][4] = {{20,20,52,52} ...
  Topic: Not enough RAM for a 368byte PIC, but ok for a 192byte PIC ?
John_Lintern

Replies: 2
Views: 5633

PostForum: General CCS C Discussion   Posted: Fri May 13, 2005 7:01 am   Subject: Not enough RAM for a 368byte PIC, but ok for a 192byte PIC ?
I am using,

- a PIC16F874A which has 192 bytes of RAM
- a PIC16F877A which has 368 bytes of RAM

The PIC16F877A is the same as the PIC16F874A but has twice the amount of ROM and EEPROM and almos ...
 
Page 1 of 2 Goto page 1, 2  Next
All times are GMT - 6 Hours
Jump to:  


Powered by phpBB © 2001, 2005 phpBB Group