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How to access TTL on Vocore2 Ultimate?

Posted: Wed Dec 07, 2016 10:03 pm
by aoeuidhtn
I got Vocore2 Ultimate and I'd like to use TTL but it seems that pins TXD2, RXD2 and GND are already taken by the dock - there are no empty holes but very short heads in their place. Should I just get a pin header and solder it onto these tiny heads in order to use TTL or it's just not possible to use TTL with a dock? I already have some jumper cables I used with other boards.

I attach a photo of headers I am talking about.

Re: How to access TTL on Vocore2 Ultimate?

Posted: Sat Dec 10, 2016 7:48 pm
by asdfgö
+1, i got the samle issue here. Any other way to connect to the VoCore2, maybe through the USB????

Re: How to access TTL on Vocore2 Ultimate?

Posted: Sun Dec 11, 2016 12:37 am
by aoeuidhtn
Anyone?

Re: How to access TTL on Vocore2 Ultimate?

Posted: Sun Dec 11, 2016 1:02 pm
by Vonger
it is a driver -free usb2ttl, at /dev/tty.usbmodem_____1, 8n1

Re: How to access TTL on Vocore2 Ultimate?

Posted: Sun Dec 11, 2016 8:07 pm
by noblepepper
On the ultimate the USB/UART converter is built in just connect to the mico USB connector.

On linux the VoCore2 will be /dev/ttyUSBx, x is set automatically but will likely be the highest numbered one.

I use picocom on Linux, kermit works too.

Code: Select all
$sudo apt-get picocom
$picocom -b 115200 /dev/ttyUSB0


On Windows you will need to install PuTTY and make a serial connection to whatever COM port Windows decided to put the VoCore2 on.

Re: How to access TTL on Vocore2 Ultimate?

Posted: Sun Dec 11, 2016 9:58 pm
by aoeuidhtn
Wow, indeed it already works! However, it was recognized as
Code: Select all
/dev/ttyACM0
on my system. dmesg showed:

Code: Select all
[497778.359658] usb 3-5: new full-speed USB device number 47 using xhci_hcd
[497778.524771] usb 3-5: New USB device found, idVendor=28e9, idProduct=018a
[497778.524773] usb 3-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[497778.524775] usb 3-5: Product: GD32 Virtual ComPort in FS Mode
[497778.524776] usb 3-5: Manufacturer: GD32Microelectronics
[497778.524776] usb 3-5: SerialNumber: 䜰䈸
[497778.524846] usb 3-5: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes
[497778.525251] cdc_acm 3-5:1.0: ttyACM0: USB ACM device

Thanks everyone for help, vocore community seems to be very beginners-friendly!

Re: How to access TTL on Vocore2 Ultimate?

Posted: Tue Dec 13, 2016 9:15 pm
by nti
Don't work for me on OS X and raspbian. On both I have /dev/ptmx but I can't connect to it