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sjek
Visitor II
October 3, 2024
Solved

How to Initialize the ANT7-T-ST25DV64KC Using the Standard Library

  • October 3, 2024
  • 2 replies
  • 2158 views

我目前正在从事一个需要使用 STM32F103C8T6 微控制器和标准库进行代码编写的项目。在此过程中，我遇到了 ANT7-T-ST25DV64KC 芯片初始化的问题，一直卡在“while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_MODE_SELECT））;在此步骤中，我还对读取 I2C_SS0_Dyn 数据感到困惑。读出的数据永远是我在 read 函数中写的 slave 地址，有时读出的数据会增加 1。

这是我的代码

 

无效 ST25DV_Init（void）
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
NVIC_InitTypeDef NVIC_InitStruct;
 
SystemClock_Config（）;
 
 
RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOB，启用）;
 
 
 
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_Init（GPIOB， &GPIO_InitStructure）;
 
RCC_APB1PeriphClockCmd（RCC_APB1Periph_I2C2，启用）;
 
I2C_InitStructure.I2C_模式 = I2C_Mode_I2C;
I2C_InitStructure.I2C_ClockSpeed = 100000;
I2C_InitStructure.I2C_占空比 = I2C_DutyCycle_2;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_OwnAddress1 = 0x00;
I2C_Init（I2C2， &I2C_InitStructure）;
 
I2C_Cmd（I2C2， 启用）;
 
 
 
 
NVIC_InitStruct.NVIC_IRQChannel = EXTI2_IRQn |EXTI3_IRQn;
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelCmd = 启用;
NVIC_Init（&NVIC_InitStruct）;
}
 
 
void ANT7_T_ST25DV64KC_WriteReg（uint16_t RegAddress， uint8_t Data）
{
I2C_GenerateSTART（I2C2， 启用）;
    
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_MODE_SELECT））;
 
I2C_Send7bitAddress（I2C2， ANT7_T_ST25DV64KC_ADDRESS， I2C_Direction_Transmitter）;
    
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED））;
 
I2C_SendData（I2C2， （uint8_t）（RegAddress >> 8））;
 
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTING））;
 
I2C_SendData（I2C2， （uint8_t）（RegAddress & 0xFF））;
 
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTING））;
    
I2C_SendData（I2C2，数据）;
    
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTED））;
    
I2C_GenerateSTOP（I2C2， 启用）;
}
 
uint8_t ANT7_T_ST25DV64KC_ReadReg（uint16_t RegAddress）
{
uint8_t 数据;
 
I2C_GenerateSTART（I2C2， 启用）;
    
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
 
    I2C_Send7bitAddress(I2C2, ANT7_T_ST25DV64KC_ADDRESS, I2C_Direction_Transmitter);
    
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
 
  I2C_SendData(I2C2, (uint8_t)(RegAddress >> 8));
    
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
 
    I2C_SendData(I2C2, (uint8_t)(RegAddress & 0xFF));  
 
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    
    I2C_GenerateSTART(I2C2, ENABLE);
    
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
 
    I2C_Send7bitAddress(I2C2, ANT7_T_ST25DV64KC_ADDRESS, I2C_Direction_Receiver);
    
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
 
    I2C_AcknowledgeConfig(I2C2, DISABLE);
 
    I2C_GenerateSTOP(I2C2, ENABLE);
 
    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED));
 
    Data = I2C_ReceiveData(I2C2);
 
    I2C_AcknowledgeConfig(I2C2, ENABLE);
 
    return Data;
}
    This topic has been closed for replies.
    Best answer by Cedric Dalban

    Hello Sjek,

    this thread seems similar to the following thread:

    How to initialize a mailbox - STMicroelectronics Community

    please see this other thread.

    thanks and regards,

    Cedric.

    2 replies

    S
    sjekAuthor
    Visitor II
    October 3, 2024

    I'm currently working on a project that requires code writing using STM32F103C8T6 microcontrollers and standard libraries.

    During this process, I ran into an issue with ANT7-T-ST25DV64KC chip initialization and kept getting stuck in "while (!"). I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_MODE_SELECT））; In this step, I was also confused about reading I2C_SS0_Dyn data. The read data is always the slave address I wrote in the read function, and sometimes the read data will increase by 1.

    Here's my code

     

    void ST25DV_Init（void）
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
NVIC_InitTypeDef NVIC_InitStruct;

SystemClock_Config（）;


RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOB，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_Init（GPIOB， &GPIO_InitStructure）;

RCC_APB1PeriphClockCmd（RCC_APB1Periph_I2C2，ENABLE）;

I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_ClockSpeed = 100000;
I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_OwnAddress1 = 0x00;
I2C_Init（I2C2， &I2C_InitStructure）;

I2C_Cmd（I2C2，ENABLE）;




NVIC_InitStruct.NVIC_IRQChannel = EXTI2_IRQn |EXTI3_IRQn;
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init（&NVIC_InitStruct）;
}


void ANT7_T_ST25DV64KC_WriteReg（uint16_t RegAddress， uint8_t Data）
{
I2C_GenerateSTART（I2C2， ENABLE）;
 
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_MODE_SELECT））;

I2C_Send7bitAddress（I2C2， ANT7_T_ST25DV64KC_ADDRESS， I2C_Direction_Transmitter）;
 
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED））;

I2C_SendData（I2C2， （uint8_t）（RegAddress >> 8））;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTING））;

I2C_SendData（I2C2， （uint8_t）（RegAddress & 0xFF））;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTING））;
 
I2C_SendData（I2C2，Data）;
 
while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTED））;
 
I2C_GenerateSTOP（I2C2， ENABLE）;
}

uint8_t ANT7_T_ST25DV64KC_ReadReg（uint16_t RegAddress）
{
uint8_t Data;

I2C_GenerateSTART（I2C2， ENABLE）;
 
 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));

 I2C_Send7bitAddress(I2C2, ANT7_T_ST25DV64KC_ADDRESS, I2C_Direction_Transmitter);
 
 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));

 I2C_SendData(I2C2, (uint8_t)(RegAddress >> 8));
 
 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

 I2C_SendData(I2C2, (uint8_t)(RegAddress & 0xFF)); 

 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
 
 I2C_GenerateSTART(I2C2, ENABLE);
 
 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));

 I2C_Send7bitAddress(I2C2, ANT7_T_ST25DV64KC_ADDRESS, I2C_Direction_Receiver);
 
 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));

 I2C_AcknowledgeConfig(I2C2, DISABLE);

 I2C_GenerateSTOP(I2C2, ENABLE);

 while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED));

 Data = I2C_ReceiveData(I2C2);

 I2C_AcknowledgeConfig(I2C2, ENABLE);

 return Data;
}

     

    A
    Andrew Neil
    Super User
    October 3, 2024

    Please see the Posting Tips for how to properly post source code:

    https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228

    I've edited the post for you.

    S
    sjekAuthor
    Visitor II
    October 3, 2024

    ty

    C
    Cedric DalbanAnswer
    ST Employee
    October 22, 2024

    Hello Sjek,

    this thread seems similar to the following thread:

    How to initialize a mailbox - STMicroelectronics Community

    please see this other thread.

    thanks and regards,

    Cedric.

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