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Barf Expert
Joined: 24 Oct 2008 Posts: 1415 Location: Munich, Germany |
Posted: Fri Nov 01, 2019 8:53 am Post subject: |
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There is always the option of buying genuine FTDI cables, somewhat more expensive (15-20 US or so...) Available at all major component suppliers.
jenom wrote: | what are the serial protocol setting of JP1.x interfaces ? (baud rate, start bit, stop bit, parity, etc...
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It is unfortunately not so easy, there is a lot of fiddling with the RTS line and such. The source is located at Soureforge and can be downloaded using svn.
BTW, it says:
Code: |
dcbSerialParams.BaudRate = 38400;
dcbSerialParams.ByteSize = 8;
dcbSerialParams.StopBits = TWOSTOPBITS;
dcbSerialParams.Parity = NOPARITY;
dcbSerialParams.fDtrControl = DTR_CONTROL_ENABLE;
dcbSerialParams.fRtsControl = RTS_CONTROL_ENABLE;
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ckeays
Joined: 12 Jan 2015 Posts: 129 Location: Toronto, Ontario |
Posted: Fri Nov 01, 2019 9:11 am Post subject: |
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jenom wrote: | I do not have a patience to wait many weeks for a $3 USB cable to arrive from China.....and I do not want to spend more money on this project either.
Then dealing with with fake/not fake and locked/not locked drivers , etc...
Hardware Solution:
I have all the components to put together quickly an IC version of serial interface on the weekend. 74HC266 + 5 resistor+1 capacitor+DB 9 serial connector....simple enough !
Thanks! |
Why do all that? If you simply can't wait, and If you have a serial port and an RS232 to TTL converter or some old device with a max232 just connect the pins to your remote.
(obviously you need to take the power for the RS232 to TTL converter from the remote to match voltage levels)
VCC = pin 1
RTS = pin 2
GND = pin 3
TXD = pin 4
pin 5 unconnected
RXD = pin 6
I have been using this for years and it works great. If you really need it, I can post a schematic of my RS232 to TTL board. |
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mdavej Expert
Joined: 08 Oct 2003 Posts: 4501
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Posted: Fri Nov 01, 2019 10:03 am Post subject: |
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You can do a lot of programming without a cable. What exactly do you need? We can probably show you how to solve your immediate problem by direct programming. Then you can wait 3 weeks for the proper cable. |
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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21237 Location: Chicago, IL |
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