Author |
Message |
Topic: CCS program syntax question |
ebarnes
Replies: 1
Views: 2641
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Forum: General CCS C Discussion Posted: Mon Apr 14, 2008 9:54 am Subject: CCS program syntax question |
In the file LM75CIM3.c provided with the compliler there is a line i dont understand
It is " data=(signed long)datah*10; "
Why use the "Signed long" in parentheses here? th ... |
Topic: I2C slave transmitting data |
ebarnes
Replies: 47
Views: 93268
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Forum: General CCS C Discussion Posted: Thu Oct 11, 2007 2:07 pm Subject: I2C slave transmitting data |
Ahh! yes, how simple. Thank-you for enlighting me on this.
You are da-man! |
Topic: I2C slave transmitting data |
ebarnes
Replies: 47
Views: 93268
|
Forum: General CCS C Discussion Posted: Thu Oct 11, 2007 11:47 am Subject: I2C slave transmitting data |
I have 2 pic16f690 talking as master transmitting to a slave continously in a loop.
what i want to do is reverse this where the slave will tramsmit to the master when the master requests data.
i did ... |
Topic: I2C lines keep getting damaged on chip |
ebarnes
Replies: 2
Views: 3335
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Forum: General CCS C Discussion Posted: Tue Oct 09, 2007 2:34 pm Subject: Re: I2C lines keep getting damaged on chip |
The project I'm doing uses 6 pumping motors separated by opto couplers which are turned on with 5V from PIN B2. Then I have servo motors which use PIN0. I also have analog to digital using pins AN0 an ... |
Topic: I2C slave transmitting data |
ebarnes
Replies: 47
Views: 93268
|
Forum: General CCS C Discussion Posted: Tue Oct 09, 2007 2:23 pm Subject: I2C slave transmitting data |
I must be having a brain freeze.
Could someone write a few lines if pseudo code for transmitting data via I2C when in slave mode?
I know that a master can send data to a slave by sending the slave ... |
Topic: RA4 and RA5 on the PIC16F690 |
ebarnes
Replies: 3
Views: 5654
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Forum: General CCS C Discussion Posted: Thu Apr 26, 2007 1:22 pm Subject: RA4 and RA5 on the PIC16F690 |
I cannot seem to get RA4 or RA5 to act as general I/O.
I think it has something to do with the internal oscelator.
any Ideas?
RA0-RA2 work fine and RA3 as input is also fine. |
Topic: Global variables. |
ebarnes
Replies: 7
Views: 10844
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Forum: General CCS C Discussion Posted: Thu Apr 19, 2007 10:16 am Subject: Global variables. |
what is the syntax for defining a global variable? I cannot find it in the help sections. |
Topic: Global variables. |
ebarnes
Replies: 7
Views: 10844
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Forum: General CCS C Discussion Posted: Thu Apr 19, 2007 9:36 am Subject: Global variables. |
Thank-you for your Critique, but You didn't address why I am getting the error. |
Topic: Global variables. |
ebarnes
Replies: 7
Views: 10844
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Forum: General CCS C Discussion Posted: Thu Apr 19, 2007 8:55 am Subject: Global variables. |
I am using "Static" to define variable "RfidReq", but I still get this error message.
"Undefined identifier
The specified identifier is being used but has never been defin ... |
Topic: Returning from an interupt |
ebarnes
Replies: 5
Views: 5376
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Forum: General CCS C Discussion Posted: Tue Apr 17, 2007 1:10 pm Subject: Returning from an interupt |
Anyway, you don't return a value from an isr. You just use a global
variable which is updated inside the isr.[/quote]
It was interesting how if I don't begin the interrupt with a void, a warnin ... |
Topic: Returning from an interupt |
ebarnes
Replies: 5
Views: 5376
|
Forum: General CCS C Discussion Posted: Tue Apr 17, 2007 12:32 pm Subject: Returning from an interupt |
I am confused on how to acquire a return value from an interrupt.
Normally to return a value would be
value = subroutine()
int Subroutine() {
some statements;
return (int);
}
but ... |
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