The PIC18F47Q10 features Timers with Gate Control. This example shows how to use the TMR1 configured in gate single pulse and toggle combined mode. It with sample a full period of a signal. A GPIO pin will be configured as input and it will be connected to a periodical signal.
- TB3285 - Getting Started with Timers/Counters on PIC18
- PIC18F-Q10 Family Product Page
- PIC18F47Q10 Data Sheet
- TB3261 - PIC1000: Getting Started with Writing C-Code for PIC16 and PIC18
- MPLAB® X IDE 5.30 or newer (microchip.com/mplab/mplab-x-ide)
- MPLAB® XC8 2.10 or a newer compiler (microchip.com/mplab/compilers)
- Microchip PIC18F-Q Series Device Support (1.4.109) or newer (packs.download.microchip.com/)
- PIC18F47Q10 Curiosity Nano (DM182029)
The PIC18F47Q10 Curiosity Nano Development Board is used as the test platform.
The following configurations must be made for this project:
| Pin | Configuration |
|---|---|
| RB5 | Digital Input |
Run the code in debug mode. Pin RB5 is configured as digital input. A periodical signal needs to be applied to this pin. Set a breakpoint inside "TMR1_GATE_ISR()". The measured frequency will be stored in the variable called "value". The code will stop at the breakpoint when the signal period has ended.
