Ublox EVK-ODIN-W2, User Manual

Page: 12 / 22

EVK-ODIN-W2 - User guide
UBX-16007132 - R07 Contents Page 12 of 22
2.3.1 Usage with UART flow control
To set up the EVK-ODIN-W2 evaluation board for use with the u-blox connectivity software and flow
control, see Table 4 for pin description. If you require the USB interface, a Serial to USB FTDI cable can
be used on the headers in the 1.8 V I/O domain.
Signal EVK-ODIN-W2 3.3V I/O EVK-ODIN-W2 1.8V I/O
GND J4, GND J23, GND
CTS J3, A10 J22, A10
VCC J1, IOREF J23, 1V8
TXD J4, A11 J22, A11
RXD J3, A13 J22, A13
RTS J3, A12 J22, A12
Table 4: EVK-ODIN-W2 UART pin description
2.3.2 Restore the u-connectXpress software firmware
After downloading an Arm Mbed application, you might want to restore the EVK-ODIN-W2 evaluation
board for usage with the u-connectXpress software. To restore the EVK-ODIN-W2 evaluation board,
perform the steps mentioned below:
1. To program the bootloader to flash on your EVK-ODIN-W2, just copy the bootloader binary
(ODIN-W2-BOOT-v0.8.1.bin or later) to your Mbed USB mass storage device. The bootloader
is available in the software package downloaded from the u-blox webpage [3].
2. The Windows application s-center is used to download the application firmware. In s-center
“Firmware update dialog”, select mode “Rescue mode (Bootloader)”.
3. After download, reset your EVK-ODIN-W2 device.
The UART settings will be set to default in the ODIN-W2 module, which means that you will not be
able to read from the device without using flow control. Since flow control is not supported on the
UART provided through the ST-link debug chip on the USB connector, you need to execute the
following steps to disable the flow control:
4. Open s-center at baudrate 115200 without flow control enabled.
5. Issue AT command to disable the flow control (AT+UMRS=115200,2,8,1,1,0).
6. Issue AT command to store the settings (AT&W).
7. Reset the device (AT+CPWROFF or button).
☞
You will not be able to see that the command is accepted, because the flow control is still enabled
on the module.
2.4 Getting started with Arm ® Mbed™
When using the EVK-ODIN-W2 for Mbed development, the USB connector (J8) is used to debug, drag,
and drop the firmware flash programming and access the UART.
2.4.1 Github
GitHub is a web-based Git repository hosting service. It offers revision control and source code
management.
Drivers and example code for Mbed from u-blox are distributed through GitHub. It is recommended to
create your own GitHub account, which is free of charge. Go to
https://github.com and create a normal
user account.