cp2102 (betemcu, B75937)

lonelysurfer lonelysurfer at web.de
Tue Nov 8 05:03:36 UTC 2011


...a never ending story: i have a working ftdi-ttl, but the cp2102-adapters
(http://www.ebay.de/itm/USB-2-0-to-TTL-UART-6PIN-CP2102-Module-Serial-Converter-/260887131702?pt=LH_DefaultDomain_0&hash=item3cbe15b636)
with the same cable dont work under ubuntu or windows. if i rub the top of
the 2.55mm with my finger random data appears. but the loader doesnt upload
the firmware. i used the txd, rxd and gnd pins and checked the connections
with a multimeter. i tested -m c123xor, -m c123 and the default firmware.
flashing custom baudrates was no problem. drivers are installed correctly
(stady ttyusb0 under ubuntu/ com1 under win). is there any hint?

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