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Topic: Dati seriali (Read 3075 times) previous topic - next topic


ma il convertitore usb2serial cos'è?
altro.. ?


Sep 19, 2012, 06:10 pm Last Edit: Sep 19, 2012, 06:16 pm by staffani Reason: 1
Una cineseria che presi diversi anni fa, un HL-340 ma non so che chipset monta, probabilmente un CH340.
Fatto sta che ha i livelli TTL invertiti e non è utile a niente.

Cercando in rete ho appena trovato questo:

"The actual chip is probably a CH340 (the 341 also supports a parallel port). It may be some other chip compatible with the CH340.
There are two versions of the CH340. One is intended for use with RS-232 drivers and receivers, such as the MAX-232. The other version uses the opposite logic levels on the I/O's and is intended for use with infrared links."


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