I2C无法在PIC12LF1840上工作

我正在与PIC12LF1840微控制器工作，并有困难使I2C工作。我用MPLAB代码配置器生成代码。当我探测我的时钟线（当调用I2C.MistMraveWrad）时，不管我做什么，电压大约稳定在1.1伏特。我正在提供3.3V的电路。我正在使用过去在PIC16LF18325微控制器上使用的功能代码。这是PIN寄存器。我使用RA1为SCLK，RA2为SDA，RA0为EASART TX，RA4为ADC输入。LATA＝0x06；TrISA＝0x3f；ANSELA＝0x10；WPUA= 0x00；有什么想法可能是错的？为什么我看到1.1伏稳定在我的时钟线，即使我叫I2C功能？



      以下为原文

    I am working with the PIC12LF1840 Microcontroller and having trouble getting the I2C to work. I generated code with MPLAB code configurator. When I probe my clock line (when calling I2C_MasterWrite) I see the voltage is steady at roughly 1.1 volts no matter what I do. I am supplying the circuit with 3.3V.

I am resuing functioning code I had used on a PIC16LF18325 microcontroller in the past. Here are the pin registers. I am using RA1 for SCLK,  RA2 for SDA, RA0 for EUSART Tx, and RA4 for an ADC input.

LATA = 0x06;
TRISA = 0x3F;
ANSELA = 0x10;
WPUA = 0x00;

Any idea what could be wrong? Why am I seeing 1.1 volts steady on my clock line even though I am calling I2C functions?