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???
10/31/07 11:10
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#146407 - Raw code by leo lau
Responding to: ???'s previous message
I've got the raw code from leo lau
he designed a 8051 stand-alone cd player. So his module has all the controls and a "readout" lcd on the 8051.

I want to control teh cd player(s) from a different location. So my goal is to use the RS485 bus (there are also different devices on this bus) to transmit the operator commands (stop, play next etc) to the cd player and have the cd player sent its graphical things (track time etc) to the operator.

the raw code i have is foud on:
http://hk.geocities.com/leo8597/ISPCDRom.a51.txt

I need to adapt this code...
My idea was to use a normal UART in this. the 1200BPS has the least error.

Hope to have given enough info, otherwise please ask


List of 21 messages in thread
TopicAuthorDate
Tripple UART            01/01/70 00:00      
   External UARTs ?            01/01/70 00:00      
   software UART            01/01/70 00:00      
   Different options            01/01/70 00:00      
      much of this follows from the fact...            01/01/70 00:00      
         simplified software UART            01/01/70 00:00      
            processing?            01/01/70 00:00      
   And if this is designed in-house            01/01/70 00:00      
      Master/slave            01/01/70 00:00      
         How much control do you have ?            01/01/70 00:00      
         who write/wrote the firmware for the "slave"s?            01/01/70 00:00      
            Raw code by leo lau            01/01/70 00:00      
               So why the 3rd 8051?            01/01/70 00:00      
                  3rd 8051            01/01/70 00:00      
         More info required            01/01/70 00:00      
   SC16IS752/SC16IS762            01/01/70 00:00      
      Dual UART with I2C-bus/SPI interface            01/01/70 00:00      
   Possible tripple UART solution            01/01/70 00:00      
      the easy way            01/01/70 00:00      
         What's a LPC??            01/01/70 00:00      
            LPC - Good question...            01/01/70 00:00      

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