错误:OSCOKIRQ无法断言

Question

我正在尝试从我的Arduino Mega ADK到我的Android开始连接,但每当我尝试acc.powerOn()时我都会收到以下错误

错误:OSCOKIRQ无法断言

这是我正在尝试运行的固件:

#include <Wire.h>
#include <Servo.h>

#include <Max3421e.h>
#include <Usb.h>
#include <AndroidAccessory.h>

int led = 13;

int EnableMotors = 22;

int Motor1FW = 24;
int Motor1RW = 26;

int Motor2FW = 28;
int Motor2RW = 30;


AndroidAccessory acc("FRBB",
             "UgvBr",
             "DemoKit Arduino Board",
             "1.0",
             "http://www.android.com",
             "0000000012345678");



// the setup routine runs once when you press reset:
void setup() {

  // Setting Serial at 115200 bps
  Serial.begin(115200);

  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);

  // Set up motor configs
  pinMode(EnableMotors, OUTPUT);
  pinMode(Motor1FW, OUTPUT);
  pinMode(Motor1RW, OUTPUT);
  pinMode(Motor2FW, OUTPUT);
  pinMode(Motor2RW, OUTPUT);

  // Powering the accessory
  acc.powerOn();             ///// <<<<<<<<<<< ERROR

}

// the loop routine runs over and over again forever:
void loop() {

  if(acc.isConnected()){

    digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
    digitalWrite(EnableMotors, HIGH);
    digitalWrite(Motor1FW, HIGH);
    digitalWrite(Motor2FW, HIGH);

    delay(2000);

    digitalWrite(led, LOW);   // turn the LED on (HIGH is the voltage level)
    digitalWrite(EnableMotors, LOW);
    digitalWrite(Motor1FW, LOW);
    digitalWrite(Motor2FW, LOW);

    delay(2000);
  }

}

我一直在寻找各地,我找不到解决这个问题的方法.我也在1.0.1上尝试使用Arduino.app的DemoKit,但仍然是同样的问题.我正在使用Mac开发它,但我不认为这是一个问题.

出于测试目的,我上传了一个代码来闪烁LED,它运行得很好.

Answer 1

花了8个小时才遇到完全相同的问题.好像Max3421e.cpp有问题.尝试更换:

boolean MAX3421E::reset()
{
  byte tmp = 0;
    regWr( rUSBCTL, bmCHIPRES );                        //Chip reset. This stops the oscillator
    regWr( rUSBCTL, 0x00 );                             //Remove the reset
    while(!(regRd( rUSBIRQ ) & bmOSCOKIRQ )) {          //wait until the PLL is stable
        tmp++;                                          //timeout after 256 attempts
        if( tmp == 0 ) {
            return( false );
        }
    }
    return( true );
}

同

boolean MAX3421E::reset()
{
    regWr( rUSBCTL, bmCHIPRES );                        //Chip reset. This stops the   oscillator
    regWr( rUSBCTL, 0x00 );                             //Remove the reset
    while(!(regRd(rUSBIRQ) & bmOSCOKIRQ)) ;
}

在Max3421e.cpp中,位于USB_Host_Shield库中(在Arduino IDE库文件夹中).基本上,在PLL真正稳定之前,更改不允许退出.

至少为我工作,祝你好运(原始提示以及有关修复的更多内容:http://arduino.cc/forum/index.php？topic = 68205.0)