At 19:05 02-02-22 +0100, you wrote: >When the tape is connected, all the values of the cassette connector >(measured on the bottom of the board) are near 0V or 5V. If I send a LOAD or >SAVE command, the one I found to be the READ is around 2V, another one is >over 6V (!). But maybe it is another signal. That one which is greater than 6V - it must be the 'Cassette Motor Power'. I don't know the schematics of Plus4, but I've checked what's in the C-64. >Maybe it is a stupid question: a 'pull up' resistor is a normal resistor >simply connected between Vcc and the signal line or I have to ask for a >specific type of resistor? Don't try to buy a 'pull up' resistor ;-) The name 'pull up' means, that the voltage is being pulled up by that resistor when nothing is actively driving the line. 'Pull down' resistors are also used... Konrad Burylo Message was sent through the cbm-hackers mailing list
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