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Function  1Fh Get Default Drive Parameter Block  
 *  Same as function call 32h (below), except that the table is accessed from  
    the default drive 
entry   AH      1Fh 
	other registers unknown 
return  AL      00h     no error 
		0FFh    error 
	DS:BX   points to DOS Disk Parameter Block for default drive. 
note 1) Unknown vector returned in ES:BX. 
     2) For DOS 2.x and 3.x, this just invokes Int\21f\32 (undocumented, Read
        DOS Disk Block) with DL=0
 

file: /Techref/INT/21f/1f.htm, 0KB, , updated: 1999/4/26 11:31, local time: 2012/2/10 01:11,
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Quick, and RELIABLE! RCL-1 RS232 Level Converter in a DB9 backshell only $15.00
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232!
 

Robotics nuts!

Check out http://users.frii.com/dlc/robotics/projects/botproj.htm from Dennis Clark. This guy ROCKS! He has made (and sells but also releases code, docs, etc...) for a number of cool little robotic modules including whiskers, IR proximity detect and remote control, Sonar proximity detect, PWM, Servo, compass. Most of these use the little PIC 12C508 controller which costs basically nothing and is soooo tiny.
The 4 servos, 2400 baud serial servo controller is a wonder of magic and he sells the programmed chip for $8. Wow!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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