Hi Dears,
recently i got a Yun board and i had fun with it, but there have been uploading problems these days.
Please see the info below:
-operating system: Mac OS
-board: Arduino Yun
-the uploading is fine with normal programs, but not fine with the program i intended to take pics with a ttl camera.
-the problems is that the TX light keeps on, but the IDE is frozen
-the message showed when i pulled out the Yun is
avrdude: ser_drain(): read error: Device not configured
-the program is listed as following:
(the code works fine with SD lib in my UNO+5100)
#include <Bridge.h>
//#include <Console.h>
#include <FileIO.h>
//#include <HttpClient.h>
//#include <Mailbox.h>
#include <Process.h>
//#include <YunClient.h>
//#include <YunServer.h>
#include<SoftwareSerial.h>
//#include<SPI.h>
//#include<SD.h>
//*******************************************************
// www.linksprite.com
// Note:
// 1. SD must be formated to FAT16
// 2. As the buffer of softserial has 64 bytes,
// so the code read 32 bytes each time
// 3. Please add the libaray to the lib path
//
// * SD card attached to SPI bus as follows:
// * MOSI - pin 11
// * MISO - pin 12
// * CLK - pin 13
// * CS - pin 4
//*******************************************************
SoftwareSerial mySerial(5,6); // Set Arduino pin 5 and 6 as softserial
byte ZERO =0x00;
byte incomingbyte;
long int j = 0,k=0,count=0,i=0x0000;
uint8_t MH,ML;
boolean EndFlag=0;
void SendResetCmd()
{
mySerial.write(0x56);
mySerial.write(ZERO);
mySerial.write(0x26);
mySerial.write(ZERO);
}
/*************************************/
/* Set ImageSize :
/* <1> 0x22 : 160*120
/* <2> 0x11 : 320*240
/* <3> 0x00 : 640*480
/* <4> 0x1D : 800*600
/* <5> 0x1C : 1024*768
/* <6> 0x1B : 1280*960
/* <7> 0x21 : 1600*1200
/************************************/
void SetImageSizeCmd(byte Size)
{
mySerial.write(0x56);
mySerial.write(ZERO);
mySerial.write(0x54);
mySerial.write(0x01);
mySerial.write(Size);
}
/*************************************/
/* Set BaudRate :
/* <1>¡¡0xAE : 9600
/* <2>¡¡0x2A : 38400
/* <3>¡¡0x1C : 57600
/* <4>¡¡0x0D : 115200
/* <5>¡¡0xAE : 128000
/* <6>¡¡0x56 : 256000
/*************************************/
void SetBaudRateCmd(byte baudrate)
{
mySerial.write(0x56);
mySerial.write(ZERO);
mySerial.write(0x24);
mySerial.write(0x03);
mySerial.write(0x01);
mySerial.write(baudrate);
}
void SendTakePhotoCmd()
{
mySerial.write(0x56);
mySerial.write(ZERO);
mySerial.write(0x36);
mySerial.write(0x01);
mySerial.write(ZERO);
}
void SendReadDataCmd()
{
MH=i/0x100;
ML=i%0x100;
mySerial.write(0x56);
mySerial.write(ZERO);
mySerial.write(0x32);
mySerial.write(0x0c);
mySerial.write(ZERO);
mySerial.write(0x0a);
mySerial.write(ZERO);
mySerial.write(ZERO);
mySerial.write(MH);
mySerial.write(ML);
mySerial.write(ZERO);
mySerial.write(ZERO);
mySerial.write(ZERO);
mySerial.write(0x20);
mySerial.write(ZERO);
mySerial.write(0x0a);
i+=0x20;
}
void StopTakePhotoCmd()
{
mySerial.write(0x56);
mySerial.write(ZERO);
mySerial.write(0x36);
mySerial.write(0x01);
mySerial.write(0x03);
}
void setup()
{
Serial.begin(57600);
while(!Serial)
{
;// wait for serial port to connect. Needed for Leonardo only
}
Serial.print("Initializing SD card...");
// On the Ethernet Shield, CS is pin 4. It's set as an output by default.
// Note that even if it's not used as the CS pin, the hardware SS pin
// (10 on most Arduino boards, 53 on the Mega) must be left as an output
// or the SD library functions will not work.
pinMode(10, OUTPUT);
//digitalWrite(10, HIGH);
if(!FileSystem.begin())
{
Serial.println("initialization failed!");
return;
}
Serial.println("initialization done.");
Serial.println("please waiting ....");
mySerial.begin(115200);
delay(100);
SendResetCmd();
delay(2000);
SetBaudRateCmd(0x1C);//set serial 57600
delay(500);
mySerial.begin(57600);
delay(100);
}
void loop()
{
byte a[32];
int ii;
SendResetCmd();
delay(2000); //Wait 2-3 second to send take picture command
SendTakePhotoCmd();
delay(1000);
while(mySerial.available()>0)
{
incomingbyte=mySerial.read();
}
File picfile = FileSystem.open("/mnt/sd/pic.jpg", FILE_WRITE);//The file name should not be too long
while(!EndFlag)
{
j=0;
k=0;
count=0;
//mySerial.flush();
SendReadDataCmd();
delay(20);
while(mySerial.available()>0)
{
incomingbyte=mySerial.read();
k++;
delay(1);//250 for regular
if((k>5)&&(j<32)&&(!EndFlag))
{
a[j]=incomingbyte;
if((a[j-1]==0xFF)&&(a[j]==0xD9)) //tell if the picture is finished
{
EndFlag=1;
}
j++;
count++;
}
}
for(j=0;j<count;j++)
{
if(a[j]<0x10) Serial.print("0");
Serial.print(a[j],HEX); // observe the image through serial port
Serial.print(" ");
}
for(ii=0; ii<count; ii++)
picfile.write(a[ii]);
Serial.println();
}
picfile.close();
Serial.print("Finished writing data to file");
while(1);
}
if only someone could help
Thank you very much! 