问题说明：使用两片ADU360进行I2C通信，主机使用IO口模拟方式，从机使用内部外设

                 主机IO口模拟方式，确认是可行，当与从机进行通信时，从机无法进入I2C中断

以下为I2C初始化过程，

I2C Startup

The following steps are required to set the I2C peripheral running:

1. Configure I2C clock in CLKDIS and CLKCON1 registers.

2. Configure digital pins for I2C operation (P0.1/P0.2, P2.0/P2.1).

3. Configure I2C registers as required for slave or master operation.

4. Enable the I2C slave or master interrupt source as required.

Note that the user should disable the internal pull-up resistors on the I2C pins via the GP0PUL register when using I2C.

初始化：

DioCfg(pADI_GP2, 0x05);     // Configure P2.0/P2.1 as I2C pins

DioPul(pADI_GP2, 0xFC);     // External pull ups required externally

//DioCfg(pADI_GP0, 0x28);     // Configure P0.1/P0.2 as I2C pins

// DioPul(pADI_GP0, 0xF9);     // External pull ups required externally

  // configure the clocks

// ClkCfg(CLK_CD0,CLK_HF,CLKSYSDIV_DIV2EN_DIS,CLK_UCLKCG);

// ClkSel(CLK_CD0,CLK_CD0,CLK_CD0,CLK_CD0);

  //ClkDis(CLKDIS_DISUARTCLK|CLKDIS_DISPWMCLK|CLKDIS_DISDACCLK|CLKDIS_DISDMACLK);

I2cFifoFlush(SLAVE, ENABLE);

  I2cFifoFlush(SLAVE, DISABLE);  // 对FIFO 清空使能

  NVIC_DisableIRQ(I2CS_IRQn);

  // Enable I2C Slave mode

  //I2cSCfg(0,I2CSCON_IENSTOP|I2CSCON_IENRX,I2CSCON_SLV_EN);

I2cSCfg(0,I2CSCON_IENSTOP|I2CSCON_IENTX_EN|I2CSCON_IENRX,I2CSCON_SLV_EN);

  I2cSIDCfg(0x16,0,0,0); // using 8-bit address in this example

  I2cTx(SLAVE, ucSlaveTxDat[uiSlaveTxIndex++]);

NVIC_EnableIRQ(I2CS_IRQn);

麻烦提供一些建议，谢谢!