CV180x CV181x Peripheral Driver Operation Guide

Revision History

Revision	Date	Description
1.0.0	2022/10/31	Initial version
1.0.1	2023/02/06	Modified to be compatible with cv180x and cv181x
1.0.2	2023/02/23	Modified gpio number

Contents

• 1. Disclaimer
• 2. Ethernet Operation Guide
  • 2.1. Operation Example
  • 2.2. IPv6 Description
  • 2.3. IEEE 802.3x Flow Control Function
    • 2.3.1. Flow Control Function Description
    • 2.3.2. Flow Control Function Configuration
    • 2.3.3. Ethtool Configuration Interface Flow Control Function
• 3. USB Operation Guide
  • 3.1. Operational Readiness
  • 3.2. Uboot Operation Process
    • 3.2.1. The USB Host Operation Process Base on the Uboot
    • 3.2.2. The USB Drive Operation Process Based on the Uboot
  • 3.3. Linux Host
    • 3.3.1. USB 2.0 Host Operation Process
    • 3.3.2. USB Pen Drive Operation Process
  • 3.4. Linux Device
    • 3.4.1. USB 2.0 Device Operation Process
    • 3.4.2. Examples of storage device operations in USB device
    • 3.4.3. Example of Terminal Device Operation in USB device
    • 3.4.4. Example of RNDIS Device Operation in USB Device
    • 3.4.5. Operation Example of CVITEK USB GADGET in USB device
  • 3.5. Points to Pay Attention to in Operation
• 4. SD/MMC card operation guide
  • 4.1. Operation preparation
  • 4.2. Operation Flow
  • 4.3. Operation example
  • 4.4. Points to Pay Attention to in Operation
• 5. I2C Operation Guide
  • 5.1. Operation Preparation
  • 5.2. Operation Process
  • 5.3. Interface Rate Setting Instructions
    • 5.3.1. Examples of I2C Read and Write Commands:
    • 5.3.2. I2C Read-Write Program Example with Kernel Mode:
    • 5.3.3. I2C Read-Write Program Example with User Mode:
• 6. SPI Operation Guide
  • 6.1. Operation Preparation
  • 6.2. Operation Process
  • 6.3. Operation Example
    • 6.3.1. SPI Read-Write Program Example with Kernel Mode：
    • 6.3.2. SPI Read-Write Program Example In User Space
• 7. GPIO Operation Guide
  • 7.1. GPIO Preparation
  • 7.2. Operation Process
  • 7.3. Operation Example
    • 7.3.1. GPIO Operation Command Example
    • 7.3.2. GPIO Operation Program Example with Kernel Space
    • 7.3.3. GPIO Operation Example with User Mode
• 8. UART operation guide
  • 8.1. The Operation Preparation of UART Is as Follows
  • 8.2. Module Compilation
  • 8.3. Operation Example
  • 8.4. Action Sample UART API Reference
    • 8.4.1. uart_dev_init
    • 8.4.2. uart_suspend
    • 8.4.3. uart_resume
  • 8.5. ioctl Configuration Instructions
• 9. Watchdog Operation Guide
  • 9.1. Preparations of Watchdog Are as Follow:
  • 9.2. Module Compile
    • 9.2.1. Operation Example
• 10. PWM Operation Guide
  • 10.1. The Preparations for PWM Operation Are as Follow
  • 10.2. Operation Process
  • 10.3. Operation Example
    • 10.3.1. PWM Operation Commands Example
    • 10.3.2. An Example of a Program to Operate Through File IO
• 11. ADC Operation Guide
  • 11.1. The Preparations of ADC Operation Are as Follow
  • 11.2. Operation Process
  • 11.3. Operation Example
    • 11.3.1. ADC Operation Commands Example:
    • 11.3.2. ADC Read-Write Operation Program Example with User Space