This program is a initial connection test of mBed and Texas Instruments EZ430 Chronos Watch. The Chronos RF Access Point radio dongle is connected to mBed usb port , and it's configured as a usb host. The program uses the USBHostSerial library.

Dependencies:   USBHost mbed

Chronos Test

  • This program is a successful connection test between mBed and the watch EZ430 Chronos Development Tool from texas Instruments.
  • The RF Access Point usb dongle, that comes with the watch, emulates a usb serial port when connected to a PC. I connected it to the mBed usb port , configured as host ( two 10 K ohms resistors from D+,D- to gnd , I know the recommended value is 15k ) and based the development on the USBHostSerial HelloWorld example program.

/media/uploads/jeroavf/img_20140730_101232.jpg

  • The mBed leds are activated based on the button received from the watch : led2 goes on when the "*" button is pressed , led3 when the "#" button is pressed and led4 when the "up"button is pressed .
  • In order to function , you have to select the "ppt control" mode on the chronos watch and after that , start the transmission pressing the "down" button on the watch.

History

Excluding a redundant while (1) loop default tip

2014-07-30, by jeroavf [Wed, 30 Jul 2014 02:16:30 +0000] rev 1

Excluding a redundant while (1) loop


Initial tests with TI Chronos Watch sending messages to mBed with radio dongle connected to usb port of mbed configured as host

2014-07-30, by jeroavf [Wed, 30 Jul 2014 02:07:46 +0000] rev 0

Initial tests with TI Chronos Watch sending messages to mBed with radio dongle connected to usb port of mbed configured as host