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Hello Hans! > But what now< Lots of opportunities out there, eh? :-p First you have to check the CF card you're using. Is it's Vcc 3.3 or 5 Volts? Is it still running, can it be written and read by a PC. Is it formatted? (Sorry, may be a very stupid question...) Provide 3.3 Volt to the Avisario if you're using a 3.3V CF! Avisario presents the CControl II in theit pictures@their HP! Another hint is their statement "TXD Port / Pin52". Your CControl hasn't that much pins, has it? Then this is the wrong forum. ;-) They're talking about another model, i guess... Another stupid question :-) Did you ever think about the Avisario's HW-flowcontrol and if it can be switched off and how to do this? Read the datasheet. If HW-control can not be switched off, YOU have to provide it via 2 additional portpins and additional SW. Next I assume a problem in your HW interconnections! Either you "tune" your Avisario-CF with an own Max232 to provide TRUE V24-levels (this is what Avisario did with their "Boxed" model). Then you are able to connect the module to your CControl via it's V24-level-RS232 (that is the 9pin-sub-d-connector). HW-flowcontrol is not possible this way; two lines are missing. Or you can connect the Avisario to the CControl via TTL (3,3 / 5 Volt level), that means using pins 28 and 29 of the MUnit. But you now have to remove the CControl's MAX232. Otherwise the CControl's Rx pin is driven by the MAX and the Avisario. That must not be!. You can connect the two lines by low-ORing the signals with two shotky-diodes and a pullup, if you want. You *may* get spreed and/or level problems doing this. So, switch on your soldering iron - it won't work without that ;-) And try to get rid of that HW flowcontrol! btw: the Avisario has a IIC port, why not using this? TomTom |
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