怎么将SPI2与MCC配合使用

嗨，我希望有人能帮助我。我使用来自MCC的SPI2设置有麻烦。这是针对DSPIC33EP256MC502的。基本设置看起来是正确的，因为当我独立调用时，我可以看到范围上的信号中的数据、clk和数据，它们与MCP3002应该进行的读数相对应。在ADC值中没有读取。使用不起作用。我已经尝试了不同的值MyoBuffiSe大小，包括0，1，2，8，16，它从不离开DO，而…这个来自SPI2.h文件，作为如何访问SPI端口的示例。有人能建议一下它有什么问题吗？我可以设置错误的中断设置吗？（如果有人需要查看我的代码的其余部分，我不知道在哪里上传这个项目？）我已经花了3天的时间，我准备把我的头发拔掉。



      以下为原文

    Hi,
I hope someone can help me. I'm having hassles using the SPI2 setup that comes from MCC. It's for a DSPIC33EP256MC502.

The basic setup appears to be correct as when I independently call

readData = SPI2_Exchange16bit(writeData);

I can see the data out, clk and data in signals on a scope and they correspond with the readings that the MCP3002 is supposed to be making.

This is how I currently have it setup

void SPI2_Initialize (void)
{
    // MSTEN Master; DISSDO disabled; PPRE 4:1; SPRE 5:1; MODE16 enabled; SMP End; DISSCK disabled; CKP Idle:Low, Active:High; CKE Idle to Active; SSEN disabled;
    SPI2CON1 = 0x62E;
    // SPIFSD disabled; SPIBEN enabled; FRMPOL disabled; FRMDLY disabled; FRMEN disabled;
    SPI2CON2 = 0x1;
    // SISEL SPI_INT_SPIRBF; SPIROV disabled; SPIEN enabled; SPISIDL disabled;
    SPI2STAT = 0x800C;
}

with the following in code parameters

    int MY_BUFER_SIZE = 2;
    uint16_t myWriteBuffer[MY_BUFER_SIZE];
    uint16_t myReadBuffer[MY_BUFER_SIZE];
    uint16_t writeData = 0b0110100000000000;
    uint16_t readData;
    SPI2_STATUS status;
    unsigned int total;
    total = 0;



However it is not reading in the ADC values.

Using
            CS0_SetLow();
            do {
                total = SPI2_Exchange16bitBuffer(&myWriteBuffer[total], MY_BUFER_SIZE - total, &myReadBuffer[total]);
                Fault_SetLow();
                // Do something else...
                //total = 16;

            } while (total < MY_BUFER_SIZE);
            Fault_SetHigh();
            readData = SPI2_Exchange16bit(writeData);

            status = SPI2_StatusGet();
            CS0_SetHigh();

does not work. I've tried different values for MY_BUFER_SIZE including 0,1,2,8,16 and it never leaves the do while... loop.

This comes from the SPI2.h file as an example of how to access the SPI port.

Can someone advise what might be wrong with it?

Could I have the wrong interrupt set?


(I don't see where to upload the project if someone needs to look at the rest of my code?)



I've spent 3 days at this and I'm ready to tear my hair out :(