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Please find attached a program that demonstrates how to use the Timer1 16 bit timer in Flowcode to time the interval between input pulses. The program is commented so look at the detailed descriptions on each block for more information. The program uses one input and three outputs. One the rising ed...

The program compiles without error. When I run in emulator the timer value being displayed stays at 0. I preset the variable "D" to 7 to track if the display changes, which it does go to 0. I also added an LED to see if the subroutine paths are being executed, which they are. I assume that...

Please find attached the modified program.

Don

Hi, I made the correction plus I had to initialize TEMP_TMR1H as I was getting an "Un-initialized" error for this variable. So in the initialization cal block I have: TEMP = 0 D = 7 TEMP_TMR1H = 0 TEMP_TMR1L = 0 In the "MY_INT" routine it appears that there should be a macro &quo...

I am looking at 2 to 100 Hz range (500 to 10 mS). Timer 1, the 16 bit timer is the timer that would be needed to get the resolution I am looking for.

Thank you,
Don

Thank you for the reply. I have looked at the interrupt using the timer but what I am trying to do is measure the time between input pulses. I was looking at using the interrupt on the input pin to jump to a routine that would start a timer. When the input pin interrupted again on the next pulse I w...

Some of the PIC's like the PIC16F690 support timer modules (see PDF "PIC16F631/677/685/687/689/690 Data Sheet" - Page 86 (Section 6.0 - TIMER1 MODULE WITH GATE CONTROL). These appear to be Timer\Counters that can be used for timing events or counting external input pulses. I do not see in ...

Are the Timer0, 1 , and 2 functions going to be implemented in Flowcode in the future?

Thank you,
Don

The "PNP_Out = !Pulse_In" works correctly (Logical NOT). Thank you. The ~ and NOT (bitwise NOT) do not function.
Does the Ver. 5.2 Flowcode have this same bug? This seems like such a basic function to not have been found before.

Thank you,
Don

The simulated program works as expected, but the hardware does not. Whatever output is calculated with the "NOT" statement stays ON in hardware.
I hope this clarifies.

Thank you,
Don

Thank you for the replies. I missed PB_7. Changed to BOOL and now the emulator works correctly. However B5 is still the only output changing on the chip. I assume the "NOT Pulse_In" is correct. If I change the calculation block to: NPN_Out = Pulse_In PB_7 = Pulse_In PNP_Out = NOT Pulse_In ...

I am new to using the PIC family of chips and Flow code. My current configuration is: FCVersion: 5 OS: Win XP SP3 bit: 32 Variant: PIC I am using PPP v3.12.16.31 with FlowCode 5.1.0.0 (Free)and the Pickit3 with the PICDEM Lab. Test chip: PIC16F690 I have attached my test code. Several questions. 1. ...