Files
ch32v20x-examples/EVT/EXAM/APPLICATION/USBPD/I2C_OP_CH223/User/CH223.c
T
2026-01-07 10:43:29 +08:00

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C

/********************************** (C) COPYRIGHT *******************************
* File Name : CH223.c
* Author : WCH
* Version : V1.0.1
* Date : 2025/10/27
* Description : This file provides all the CH223 functions
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
/******************************************************************************/
#include "debug.h"
#include "CH223.h"
#include "string.h"
u32 Buffer[7] = {0};//NDO raw data in SRCCAP
u16 BufferV[SIZE] = {0};//Analyzing voltage data in SRCCAP
u16 BufferI[SIZE] = {0};//Analyzing Current Data in SRCCAP
u16 BufferVPPS[SIZE] = {0};//Parsing PPS data in SRCCAP
/*********************************************************************
* @fn IIC_Init
*
* @brief Initializes the IIC peripheral.
*
* PB11------SDA
* PB10------SCL
*
* @return none
*/
void IIC_Init(u32 bound, u16 address)
{
GPIO_InitTypeDef GPIO_InitStructure={0};
I2C_InitTypeDef I2C_InitTSturcture={0};
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE );
RCC_APB1PeriphClockCmd( RCC_APB1Periph_I2C2, ENABLE );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init( GPIOB, &GPIO_InitStructure );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init( GPIOB, &GPIO_InitStructure );
I2C_InitTSturcture.I2C_ClockSpeed = bound;
I2C_InitTSturcture.I2C_Mode = I2C_Mode_I2C;
I2C_InitTSturcture.I2C_DutyCycle = I2C_DutyCycle_16_9;
I2C_InitTSturcture.I2C_OwnAddress1 = address;
I2C_InitTSturcture.I2C_Ack = I2C_Ack_Enable;
I2C_InitTSturcture.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_Init( I2C2, &I2C_InitTSturcture );
I2C_Cmd( I2C2, ENABLE );
}
/*********************************************************************
* @fn CH223_Init
*
* @brief Initializes CH223.
*
* @return none
*/
void CH223_Init()
{
IIC_Init(100000, 0XA0);
}
/*********************************************************************
* @fn CH223_ReadOneByte
*
* @brief Read one data from CH223.
*
* @param ReadAddr - Read frist address.
*
* @return temp - Read data.
*/
u8 CH223_ReadOneByte(u16 ReadAddr)
{
u8 temp = 0;
while( I2C_GetFlagStatus( I2C2, I2C_FLAG_BUSY ) != RESET )
{
}
I2C_GenerateSTART( I2C2, ENABLE );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_MODE_SELECT ) );
I2C_Send7bitAddress( I2C2, 0X44, I2C_Direction_Transmitter );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED ) );
#if (Address_Lenth == Address_8bit)
I2C_SendData( I2C2, (u8)(ReadAddr&0x00FF) );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
#elif (Address_Lenth == Address_16bit)
I2C_SendData( I2C2, (u8)(ReadAddr>>8) );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
I2C_SendData( I2C2, (u8)(ReadAddr&0x00FF) );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
#endif
I2C_GenerateSTART( I2C2, ENABLE );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_MODE_SELECT ) );
I2C_Send7bitAddress( I2C2, 0X45, I2C_Direction_Receiver );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED ) );
while( I2C_GetFlagStatus( I2C2, I2C_FLAG_RXNE ) == RESET )
I2C_AcknowledgeConfig( I2C2, DISABLE );
temp = I2C_ReceiveData( I2C2 );
I2C_GenerateSTOP( I2C2, ENABLE );
return temp;
}
/*********************************************************************
* @fn CH223_WriteOneByte
*
* @brief Write one data to CH223.
*
* @param WriteAddr - Write frist address.
*
* @return DataToWrite - Write data.
*/
void CH223_WriteOneByte(u16 WriteAddr, u8 DataToWrite)
{
while( I2C_GetFlagStatus( I2C2, I2C_FLAG_BUSY ) != RESET );
I2C_GenerateSTART( I2C2, ENABLE );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_MODE_SELECT ) );
I2C_Send7bitAddress( I2C2, 0X45, I2C_Direction_Transmitter );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED ) );
#if (Address_Lenth == Address_8bit)
I2C_SendData( I2C2, (u8)(WriteAddr&0x00FF) );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
#elif (Address_Lenth == Address_16bit)
I2C_SendData( I2C2, (u8)(WriteAddr>>8) );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
I2C_SendData( I2C2, (u8)(WriteAddr&0x00FF) );
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
#endif
if( I2C_GetFlagStatus( I2C2, I2C_FLAG_TXE ) != RESET )
{
I2C_SendData( I2C2, DataToWrite );
}
while( !I2C_CheckEvent( I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED ) );
I2C_GenerateSTOP( I2C2, ENABLE );
}
/*********************************************************************
* @fn CH223_Read
*
* @brief Read multiple data from CH223.
*
* @param ReadAddr - Read frist address.
* pBuffer - Read data.
* NumToRead - Data number.
*
* @return none
*/
void CH223_Read(u16 ReadAddr, u32 *pBuffer, u16 NumToRead)
{
u8 t = 0;
u32 temp[4] = {0};
u32 temp1 = 0;
while(NumToRead)
{
temp[4] = 0;
for (t = 0; t < 4; t++)
{
temp[t] = CH223_ReadOneByte(ReadAddr++);
}
temp1 = (temp[0] + (temp[1] << 8) + (temp[2] << 16) + (temp[3] << 24));
*pBuffer++=temp1;
NumToRead--;
}
}
/*********************************************************************
* @fn CH223_Write
*
* @brief Write multiple data to CH223.
*
* @param WriteAddr - Write frist address.
* pBuffer - Write data.
* NumToWrite - Data number.
*
* @return none
*/
void CH223_Write(u16 WriteAddr, u8 *pBuffer, u16 NumToWrite)
{
while(NumToWrite--)
{
CH223_WriteOneByte(WriteAddr, *pBuffer);
WriteAddr++;
pBuffer++;
Delay_Ms(2);
}
}
/*********************************************************************
* @fn Buffer_Change
*
* @brief Analysis of SRCCAP message
*
* @param buffer[] - NDO data.
* n - NDO_Number.
*
* @return none
*/
void Buffer_Change(u32 buffer[], int n)
{
int i = 0;
u32 tempV = 0, tempI = 0, tempVmax = 0;
for(i = 0; i < n; i++)
{
tempV = buffer[i];
tempI = buffer[i];
if((tempV & 0xC0000000) == 0)
{
tempV >>= 10;
tempV &= 0x03FF;
BufferV[i] = tempV * 0.5;
tempI &= 0x03FF;
BufferI[i] = tempI * 0.1;
}
else {
tempV >>= 8;
tempVmax = tempV >> 9;
tempV &= 0x00FF;
BufferV[i] = tempV * 1;
tempVmax &= 0x00FF;
BufferVPPS[i] = tempVmax * 1;
tempI &= 0x00FF;
BufferI[i] = tempI * 0.5;
}
}
}
/*********************************************************************
* @fn Current_VI
*
* @brief Read and display the current output voltage value
*
* @param ndo_select - NDO_Select.
*
*
* @return none
*/
void Current_VI(u8 ndo_select)
{
u8 tempV = 0, tempI = 0;
u8 current[2];
tempV = BufferV[ndo_select] % 10;
current[0] = BufferV[ndo_select] / 10;
tempI = BufferI[ndo_select] % 10;
current[1] = BufferI[ndo_select] / 10;
printf("The current regulating voltage is: %d.%dV,%d.%dA\t\r\n", current[0], tempV, current[1], tempI);
}
/*********************************************************************
* @fn User_Set_VI
*
* @brief Set VBUS voltage
*
* @param TargetData - Target voltage value.
* VBUS voltage=TargetData*200mv
*
* @return none
*/
void User_Set_VI(u8 TargetData)
{
u8 ndo_select = 0, state_flag = 0;
CH223_WriteOneByte(0xB6, TargetData);
Delay_Ms(5000);
state_flag = CH223_ReadOneByte(0xB5);
ndo_select = (state_flag >> 3) & 0x07;
printf("nod_select_user-->%d\r\n",ndo_select);
Current_VI(ndo_select - 1);
}