Hello there,
I've been experimenting with some USBSerial 2.0 (http://www.b4x.com/android/forum/threads/usbserial-library-2-0-supports-more-devices.28176/) libraries provided in the boards. I managed to get these little USB-Serial devices detected (the tablet found the device), but they aren't sending any data when I tapped "Send abcde". The TX LED on the device only lights up a short while on the first send, but not anymore afterwards.
The Logs bar said: "Error: (IOException) java.io.IOException: Error writing 5 bytes at offset 0 length=5".
What could be that problem? Opinions are welcome.![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Included some more info:
USB-Serial adapter - Parallax Propeller "Prop Plug", using FTDI FT232RQ.
Tablet - Generic Q8-A13 (Allwinner A13 processor) rooted Android 4.0.4 and with manually included permissions.
I've been experimenting with some USBSerial 2.0 (http://www.b4x.com/android/forum/threads/usbserial-library-2-0-supports-more-devices.28176/) libraries provided in the boards. I managed to get these little USB-Serial devices detected (the tablet found the device), but they aren't sending any data when I tapped "Send abcde". The TX LED on the device only lights up a short while on the first send, but not anymore afterwards.
The Logs bar said: "Error: (IOException) java.io.IOException: Error writing 5 bytes at offset 0 length=5".
What could be that problem? Opinions are welcome.
Included some more info:
USB-Serial adapter - Parallax Propeller "Prop Plug", using FTDI FT232RQ.
Tablet - Generic Q8-A13 (Allwinner A13 processor) rooted Android 4.0.4 and with manually included permissions.