# pic18f47q10-cnano-spi-slave-int-mcc

**Repository Path**: microchip-pic-avr-examples/pic18f47q10-cnano-spi-slave-int-mcc

## Basic Information

- **Project Name**: pic18f47q10-cnano-spi-slave-int-mcc
- **Description**: The PIC18F47Q10 features two MSSP modules, which can be configured in SPI mode. In this demo, the SPI is configured as slave and it is used to exchange data. The data transfer is triggered by interrupts. The repository contains the MCC Generated code for the application.
- **Primary Language**: C
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-06-17
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

<div id="readme" class="Box-body readme blob js-code-block-container">
 <article class="markdown-body entry-content p-3 p-md-6" itemprop="This needs to locked down and 'never' changed"><p><a href="https://www.microchip.com" rel="nofollow"><img src="Images/Microchip.png" alt="MCHP" width="300";"></a></p>

# PIC18F47Q10 Exchanging Data as a Slave SPI Device Using Interrupts

## Objective
This repository contains an example of MCC generated source code for SPI as described in [*TBxxxx - Getting Started with SPI using MSSP on PIC18*](https://www.microchip.com/) document from Microchip.
<br>In this demo, the SPI will be configured as slave and it will be used to exchange data. The data transfer is triggered by interrupts.

## Related Documentation
- [TBxxxx - Getting Started with SPI using MSSP on PIC18](http://www.microchip.com/)
- [PIC18-Q10 Product Family Page](https://www.microchip.com/design-centers/8-bit/pic-mcus/device-selection/pic18f-q10-product-family)
- [PIC18F47Q10 Data Sheet](http://ww1.microchip.com/downloads/en/DeviceDoc/40002043D.pdf)
- [PIC18F47Q10 Code Examples on GitHub](https://github.com/microchip-pic-avr-examples?q=pic18f47q10-cnano&type=&language=)

## Software Used
- MPLAB® X IDE 5.30 or newer [(microchip.com/mplab/mplab-x-ide)](http://www.microchip.com/mplab/mplab-x-ide)
- MPLAB® XC8 2.10 or a newer compiler [(microchip.com/mplab/compilers)](http://www.microchip.com/mplab/compilers)
- MPLAB® Code Configurator (MCC) 3.95.0 or newer [(microchip.com/mplab/mplab-code-configurator)](https://www.microchip.com/mplab/mplab-code-configurator)
- MPLAB® Code Configurator (MCC) Device Libraries PIC10 / PIC12 / PIC16 / PIC18 MCUs 1.79.0 or newer [(microchip.com/mplab/mplab-code-configurator)](https://www.microchip.com/mplab/mplab-code-configurator)
- Microchip PIC18F-Q Series Device Support 1.3.89 or newer [(packs.download.microchip.com/)](https://packs.download.microchip.com/)

## Hardware Used
- PIC18F47Q10 Curiosity Nano [(DM182029)](https://www.microchip.com/Developmenttools/ProductDetails/DM182029)

## Setup
The PIC18F47Q10 Curiosity Nano Development Board is used as the test platform.

<br><img src="Images/PIC18F47Q10_CNANO.png" width="600">

The following configurations must be made for this project:
- Clock
  - Oscillator Select: HFINTOSC
  - HF Internal Clock: 64 MHz
  - Clock Divider: 1
- MSSP1:
  - MSSP1 Enabled
  - MSSP1 Interrupts Enabled
  - Serial Protocol: SPI
  - Mode: Slave
  - Data Mode: 0

- Watchdog Timer: disabled
- Low-voltage Programming: enabled

|Pin           | Configuration      |
| :----------: | :----------------: |
|RA5 (SS)      | Digital Input      |
|RC3 (SCK)     | Digital Input      |
|RC4 (SDI)     | Digital Input      |
|RC5 (SDO)     | Digital Output     |

## Operation
1. Connect the board to the PC.

2. Open the *pic18f47q10-cnano-spi-slave-int-mcc.X* project in MPLAB® X IDE.

3. Set *pic18f47q10-cnano-spi-slave-int-mcc.X* project as main project. Right click on the project in the *Projects* tab and click *Set as Main Project*.

4. Select the *PIC18F47Q10 Curiosity Nano* in the *Hardware Tool* section of the project settings:
  - Right click on the project and click *Properties*;
  - Select the *PIC18F47Q10 Curiosity Nano* (click on the SN) in the *Hardware Tool* tab and then click *OK*:
<br><img src="Images/SPI-int-mcc-tool.PNG" width="600">


5. Program the project to the board: right click on the project and click *Make and Program Device*.

Result:
- Channel 0 -> SCK
- Channel 1 -> Slave SDI/Master SDO
- Channel 2 -> Slave SDO/Master SDI
- Channel 3 -> SS1
- Channel 4 -> SS2 (for other slave device)
<br><img src="Images/slave-receive.png" width="600">


## Summary
This project is an illustration for a basic use case based around MSSP1 in SPI mode.