PIC32MX UART传输会产生乱码

我使用PIC32MX110F016B-I/SP时遇到了麻烦。我试过几种不同版本的代码，结果各不相同。有时输出是胡言乱语，有时输出非常接近输入，这让我相信这个问题可能与BAUD速率和/或振荡器配置有关。以太或不是芯片实际上是运行程序。这也让我觉得我可能也不正确地做PPS。我已经成功地用PIC18F4550芯片连接到UART端点并与之通信，因此我不认为端点有问题。我有三个独立的PIC32MX110F016B芯片，当运行下面的代码时，它们都未能进行通信，所以我不认为问题也在芯片中。我在这里已经有一段时间了，我有点失落。如有任何帮助，我们将不胜感激。下面是我的代码的当前状态：



      以下为原文

    I've been having trouble getting UART to work with my PIC32MX110F016B-I/SP. I've tried several different variations of the code with various results. Sometimes the output is gibberish, sometimes the output is very close to the input, which leads me to believe that the issue may be related to the BAUD rate and/or the oscillator configurations.

For certain pins selected with PPS, the chip outputs a never ending stream of gibberish, regardless of whether or not the chip is actually running the program. This makes me also think that I might be doing the PPS incorrectly as well.

I've been successful connecting and communicating to the UART endpoint with a PIC18F4550 chip so I don't believe there is an issue with the endpoint. I have three separate PIC32MX110F016B chips and they all have failed communicating when running with the code listed below, so I don't believe the issue is in the chips either.

I've been at this for awhile and I'm at a bit of a loss. Any help would be appreciated. Here is the current state of my code:
#include
#include
#include
#include

#pragma config FPLLODIV = DIV_2
#pragma config FPLLMUL = MUL_20
#pragma config FPLLIDIV = DIV_1
#pragma config FPBDIV = DIV_1

#pragma config FWDTEN = OFF
#pragma config WDTPS = PS1
#pragma config FCKSM = CSECME
#pragma config OSCIOFNC = OFF
#pragma config POSCMOD = HS
#pragma config IESO = ON
#pragma config FSOSCEN = OFF
#pragma config FNOSC = FRCPLL
#pragma config CP = OFF
#pragma config BWP = OFF
#pragma config PWP = OFF
#pragma config ICESEL = ICS_PGx1 // NB: set to correct channel
#pragma config DEBUG = OFF
#pragma config IOL1WAY = OFF
#pragma config JTAGEN = OFF

#define GetSystemClock() (80000000ul)
#define GetPeripheralClock() (GetSystemClock()/(1 << OSCCONbits.PBDIV))
#define GetInstructionClock() (GetSystemClock())

void SendDataBuffer(const char *buffer) {
    UINT32 size = strlen(buffer);
    while(size) {
        while(!UARTTransmitterIsReady(UART2));
        UARTSendDataByte(UART2, *buffer);

        buffer++;
        size--;
    }

    while(!UARTTransmissionHasCompleted(UART2));
}

void main(void) {
    TRISA = 0xFF; // Set A register as output
    ANSELA = 0;
    TRISB = 0x00; // Set B register as output
    ANSELB = 0;
   
    // Set input/output for pins
    U2RXR = 0x0000; // configure the input U2RX to pin RPA1
    RPB14R = 0x0002; // configure the output U2TX to pin RB14
   
    UARTConfigure(UART2, UART_ENABLE_PINS_TX_RX_ONLY);
    UARTSetFifoMode(UART2, UART_INTERRUPT_ON_TX_NOT_FULL | UART_INTERRUPT_ON_RX_NOT_EMPTY);
    UARTSetLineControl(UART2, UART_DATA_SIZE_8_BITS | UART_PARITY_NONE | UART_STOP_BITS_1);
    UARTSetDataRate(UART2, GetPeripheralClock(), 9600);
    UARTEnable(UART2, UART_ENABLE_FLAGS(UART_PERIPHERAL | UART_RX | UART_TX));

    SendDataBuffer("hellon");
    WriteUART2(0x48);
   
    while(1) {}
    return;
}

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