# pic18f47q10-cnano-spi-slave-receive-bare

**Repository Path**: microchip-pic-avr-examples/pic18f47q10-cnano-spi-slave-receive-bare

## Basic Information

- **Project Name**: pic18f47q10-cnano-spi-slave-receive-bare
- **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 receive data from a master device. The repository contains the bare metal code for the application.
- **Primary Language**: Unknown
- **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 Receiving Data as a Slave SPI Device

## Objective
This repository contains an example of bare-metal 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 receive data from a master device.

## 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)
- 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
  - 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-receive-bare.X* project in MPLAB® X IDE.

3. Set *pic18f47q10-cnano-spi-slave-receive-bare.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-slave-receive-bare-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.