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???
08/01/04 09:47
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#75191 - RE: 1-Wire Protocol for 22.118 MHz
Responding to: ???'s previous message
Michael Karas wrote:
-------------------------------

A) Use a low cost small pin count microcontroller to interface to the 1-wire device and then connect that device to the main microcontroller via some other more conventional type of interface.

B) Make a byte transfer engine for 1-wire inside a small CPLD.

Why reinventing the wheel?
There are such devices already.
DS2480B, DS1481, DS2490, DS2482-800 and if you fancy CPLD, DS1WM
Besides, instead of disabling interrupts, you can perform 1w bit-banging on the higher priority interrupt and leave the rest of interrupts running, on lower level.

List of 14 messages in thread
TopicAuthorDate
1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
   RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
      RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
         RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
         RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
            RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
         RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
            RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
               Imrpoving of the wheel...            01/01/70 00:00      
                  RE: Imrpoving of the wheel...            01/01/70 00:00      
                  RE: Imrpoving of the wheel...            01/01/70 00:00      
   RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
   RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      
   RE: 1-Wire Protocol for 22.118 MHz            01/01/70 00:00      

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