Also just had a look at that debug interface. Problem is it requires two serial ports. A hell of a lot of stuff is request/response type half duplex comms. If it is half duplex comms you can do a slight dodgy and from the pass through DB9 pins 2 and 3, diode OR them together (1N914 is fine) and connect them to pin 2 of the listen DB9. ASCII art coming up 


DB9 

5 --------------+------------------ 5

3 ---+----------|------------------ 3

2 ---|-----+----|------------------ 2

     |     |    |

    ---   ---   |

    \./   \./   |

     |     |    |

     +--+--+    |

        |       |

        |       |

Listen  |       |

DB9     |       |

2-------+       |

5---------------+



If both sides transmit at the same time you will get rubbish, but they won't conflict with each other.
Also it relies on most PCs detecting 0 volts as a negative which the 232 spec does say it should do.


Edited by Shonky (24/10/2002 04:23)
_________________________
Christian
#40104192 120Gb (no longer in my E36 M3, won't fit the E46 M3)