Driver Example Project

This is a peripheral driver example project that demonstrates how to use various driver interfaces in the SDK.

Features

UART communication driver
SPI interface usage
I2C device access
ADC data acquisition

Quick Start

Hardware Requirements

One development board
USB-to-serial module
SPI/I2C peripheral modules
Analog signal source

Build Steps

Configure hardware interfaces
Modify driver parameters
Compile the project
Download and run

Running Result

The program will initialize various peripheral drivers and output test results via the serial port.

Code Structure

driver_example/
├── src/
│   ├── main.c          # Main program
│   ├── uart_drv.c      # UART driver
│   ├── spi_drv.c       # SPI driver
│   ├── i2c_drv.c       # I2C driver
│   └── adc_drv.c       # ADC driver
├── inc/
│   ├── uart_drv.h
│   ├── spi_drv.h
│   ├── i2c_drv.h
│   └── adc_drv.h
└── README.md

Driver Interfaces

UART Driver

// Initialize UART
uart_init(115200);

// Send data
uart_send("Hello World\n");

// Receive data
char data = uart_receive();

SPI Driver

// Initialize SPI
spi_init(SPI_MODE0, 1000000);

// Send data
spi_send(0x55);

// Receive data
uint8_t data = spi_receive();

I2C Driver

// Initialize I2C
i2c_init(100000);

// Write data
i2c_write(0x50, 0x00, 0x55);

// Read data
uint8_t data = i2c_read(0x50, 0x00);

ADC Driver

// Initialize ADC
adc_init(ADC_CH0);

// Read data
uint16_t value = adc_read(ADC_CH0);

Notes

Check hardware connections
Confirm driver parameters
Observe serial output
Verify data correctness

Troubleshooting

Common issues and solutions:

No serial output – Check baud rate settings
SPI communication failure – Verify clock polarity and phase
No response from I2C device – Check address and timing
Abnormal ADC data – Verify reference voltage