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by ae.vasconcelos
Mon Jan 06, 2014 11:15 am
Forum: Advanced users
Topic: F2FS
Replies: 11
Views: 12665

Re: F2FS

Hi, I'm sorry to revive an old thread but I had the need of resizing the partitions created by a raspbmc installation and found out that I couldn't because the gparted on my linux box listed that partition as "unknown". After reading a bit about f2fs I noticed the no fsck issue. So I don't feel very...
by ae.vasconcelos
Fri Dec 27, 2013 12:57 pm
Forum: Beginners
Topic: E-bay usb/serial. Is this one safe ?
Replies: 14
Views: 3284

Re: E-bay usb/serial. Is this one safe ?

I remember writing a program on an IBM PC/AT to download a program to an EPROM programmer. At 19200 baud I had to resort to assembler, because compiled C was not fast enough. (No handshaking and only 1 byte buffering in those days.) Never had to use those beasts, I think that the oldest one I saw a...
by ae.vasconcelos
Wed Dec 25, 2013 10:58 pm
Forum: Beginners
Topic: E-bay usb/serial. Is this one safe ?
Replies: 14
Views: 3284

Re: E-bay usb/serial. Is this one safe ?

Even with no flow control, you only need to read the port three times a second to avoid overrun. Hardware flow control, specifically RTS/CTS, can be enabled using GPIO31/30 on P5. But you would need a different adapter, quite possibly a USB-RS232 plus MAX3232 level converters, to make use of this. ...
by ae.vasconcelos
Tue Dec 24, 2013 2:41 pm
Forum: Beginners
Topic: E-bay usb/serial. Is this one safe ?
Replies: 14
Views: 3284

Re: E-bay usb/serial. Is this one safe ?

Thanks to all the great sources of information here, one day I hope the knowledge will sink in to my brain. No wonder people tell me I"m not grounded. Yes. I have a lot to think about. I can see the logic of having a 5v wire on a serial connection when doing very low level stuff, like connecting to...
by ae.vasconcelos
Mon Dec 23, 2013 10:30 pm
Forum: Beginners
Topic: E-bay usb/serial. Is this one safe ?
Replies: 14
Views: 3284

Re: E-bay usb/serial. Is this one safe ?

rurwin wrote:Don't connect the red wire. Otherwise the power supply of your PC will fight with the power supply of your Pi.
Hummm, didn't knew that one. Thank you.

Who wins this kind of fight ?
by ae.vasconcelos
Mon Dec 23, 2013 9:48 am
Forum: Beginners
Topic: E-bay usb/serial. Is this one safe ?
Replies: 14
Views: 3284

E-bay usb/serial. Is this one safe ?

Hi, Just got this adapter from e-bay, it is called "USB to serial adapter PL2303 TTL console Recovery RS232 for Raspberry Pi", but I know better than believe in everything I read in e-bay. The adapter is this one . I removed decades of dust from my analog multimeter (duracell batteries rule :-)) and...

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