portF4 to portf7 is not coming

[keshavamurthy k.c]

hi
i am keshav new user of flow code .
i am doing project battery monitoring system using pic 16f946 micro controller in portf4 to portf7 pin is coming in panel edit properties.
how to configure internal register of pic micro. i am using portc5 as a input for capture mode,i have to set the ccp1con register capture mode at falling edge. how to set these register?
please reply

[Steve]

Please post this into the appropriate Flowcode forum - i.e. Flowcode V4 if you are using V4 and Flowcode V2/3 otherwise.

[keshavamurthy k.c]

i attached image .
portF have 8 I/O pins in this image portF I/O pin only 4 pins .
i used all port F pins as a input tell me how to configure portF4 to portF7.

[keshavamurthy k.c]

hi
i am using 16f946 pic micro-controller.
i am doing simple project using timer0 interrupt should be enable every 100msec port c pin should be high and low . i written flow code for that one its coming error like this
F:\flowcode\moniteringsystem\timer0.c(146:2): error: unknown identifier 'cr_bit'
F:\flowcode\moniteringsystem\timer0.c(146:2): error: failed to generate expression
F:\flowcode\moniteringsystem\timer0.c(147:2): error: unknown identifier 'cr_bit'
F:\flowcode\moniteringsystem\timer0.c(147:2): error: failed to generate expression
F:\flowcode\moniteringsystem\timer0.c(149:2): error: unknown identifier 'st_bit'
F:\flowcode\moniteringsystem\timer0.c(149:2): error: failed to generate expression
F:\flowcode\moniteringsystem\timer0.c(150:2): error: unknown identifier 'st_bit'
F:\flowcode\moniteringsystem\timer0.c(150:2): error: failed to generate expression
F:\flowcode\moniteringsystem\timer0.c(183:6): error: unknown identifier 'ts_bit'
F:\flowcode\moniteringsystem\timer0.c(183:6): error: failed to generate expression
F:\flowcode\moniteringsystem\timer0.c(183:32): error: unknown identifier 'ts_bit'
F:\flowcode\moniteringsystem\timer0.c(183:32): error: failed to generate expression
F:\flowcode\moniteringsystem\timer0.c(183:6): error: invalid operand 'ts_bit(intcon, 0x0002) '
F:\flowcode\moniteringsystem\timer0.c(183:32): error: invalid operand 'ts_bit(intcon, 0x0005)'
F:\flowcode\moniteringsystem\timer0.c(183:29): error: failed to generate expression
timer0.c success

failure

Return code = 1

some one please help me.

[Benj]

Sorry The updated FCD file I sent you is for version 4.2 of Flowcode and will not work in previous versions. You should be able to download and upgrade to the latest release by visiting the Flowcode product page.

[keshavamurthy k.c]

hello
any one have timer1 capture mode example please send me.

[Benj]

Hello

If you simply want to be able to read the count on the timer then you can simply declare an INT variable in flowcode called timerval and then use the following code in a C code icon.

FCV_TIMERVAL = tmr1h << 8;
FCV_TIMERVAL = FCV_TIMERVAL | tmr1l;

[keshavamurthy k.c]

actually i am giving input frequency signal into RC5/ccp1 of pic 16f946 micro controller .i want to capture input signal every falling edge.
Timer1 will starts the count . after completion of capture signal timer1 register count value copied into ccpr1h and ccpr1l register please guide me how to do this function.
i have to set ccp1con register for falling edge is it necessary ?

[Benj]

Hello

The device datasheet should be able to tell you exactly how to do this though it may take a long winded approach to explaining it all. When I am doing custom things like this I generally do a google search to see if I can find a reference project to base my code on. Always nice to have an example to base your work on. Eg all you are after is how to configure the timer 1 registers.

[keshavamurthy k.c]

any one have flowcode user manual please send me

[Benj]

Hello,

There is a quick start manual available from the inside of your Flowcode DVD case.

There is also an online course available from here.
http://www.matrixmultimedia.com/lc_microcontroller.php

There is also a help file available from the following directory.
"C:\Program Files\Matrix Multimedia\Flowcode v3\FlowEN.hlp"
"C:\Program Files\Matrix Multimedia\Flowcode v4\Help\FlowEN.hlp"

The BoostC compiler manual can also be found here.
"C:\Program Files\Matrix Multimedia\Flowcode vx\BoostC\BoostC.pdf"

There is also a book by Bert Van Damn available that details several projects from start to finish using Flowcode.

Any further help then we have the forums for questions.

Please search for posts first as the problem has probably been covered before.

[keshavamurthy k.c]

hello
I have a following query
1. I want to capture input signal from port RC5/ccp1 pin for every falling edge for this I written c-code

trisc<5>=1;
ccpcon=0x04;// for every falling edge

any other initialization required ?

2. after I will call custom interrupt timer1 roll over I written in custom interrupt
Enable code:
intcon.PEIE=1;
intcon.GIE=1;
t1con=0x49;
pie1.TMR1E=1;

disable code:
pie1.tmr1ie=0;

handler code:
if(pir1&(1<<TMR1IF))
{
FCM_%n();
clear_bit(pir1,TMR1IF);
}
Timer1 interrupt is available in interrupt properties .custom interrupt for timer1 roll over is required?

3.in timer1 ISR I written c-code

FCV_CCP_1=TMR1L|(TMR1H<<8);


This flow code is not working. How to capture signal for every falling edge in timer1.
You have these type of example please send me. If i go through my pic 16f946 controller datasheet initialization of all register is correct.

[Benj]

Hello

1) Firstly this line of code will probably not work.

trisc<5>=1;

This should instead look line this.

set_bit(trisc, 5);
or
trisc.5 = 1;

2) Enabling the timer interrupt will setup the timer for counting from the internal clock. You should have a look at the code that is generated and then look at the specific registers that are used in the device datasheet to see how to modify these for your application.

3) The interrupt will fire when the timer value rolls over. eg from 0xffff to 0x0000 therefore you will not have to collect the count value. If you wish to collect the count value at regular periods then maybe look at some timer 0 examples. Eg when inside the timer 0 routine read the timer 1 count register.