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How do I change diagnostic level /x in C program

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aditya.alate

Post subject: How do I change diagnostic level /x in C program

Posted: October 7th, 2009, 11:17

Joined: October 7th, 2009, 10:39
Posts: 1
Location: Pune-Maharashtra-India

I am currently working on some kind of low level HDD diag and recovery tool project.
I have built RS232-TTL converter and connected HDD using it. Now Trying to build a GUI tool to communicate to HDD and do requested things.

Till Now I am successful in writing C code for sending single byte diagnostic commands to Seagate SATA drive. BUt when I am sending a multibyte command like "/1", it is giving me output like "Input Command Error".

I am using BYTE array to scan user input and passing char * pointer to that array to my function which writes that string to COM port i.e HDD.

Note : All diagnostic commands are working properly while connected with HyperTerminal or Putty.

Is anybody having any idea, suggestion for this.

-ADITYA

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BlackST

Post subject: Re: How do I change diagnostic level /x in C program

Posted: October 7th, 2009, 16:02

Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY

Introduce a delay between characters sent and lines.

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guru

Post subject: Re: How do I change diagnostic level /x in C program

Posted: October 8th, 2009, 4:24

Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England

you do need a delay. You also (as I found with my machine) need the GND connected or you get bullsh1t echo

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All went well until I plugged the drive in.

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chaitanya

Post subject: Re: How do I change diagnostic level /x in C program

Posted: October 8th, 2009, 5:34

Joined: August 19th, 2009, 2:24
Posts: 7
Location: India

Hurray!

the problem is resolved as line feed is added to data to be written
(scanf( ) omits the \n so i added it explicitly)

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guru

Post subject: Re: How do I change diagnostic level /x in C program

Posted: October 9th, 2009, 4:11

Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England

thats the easy bit

_________________
All went well until I plugged the drive in.

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