User manual
GHI Electronics,LLC Embedded Master User Manual
Embedded Master Products
I/O used:
1. E26: Reserved for MFW-WiFi external Interrupt. User should not use it.
2. E28: Reserved for MFW-WiFi SPI SSEL signal. User should not use it.
3. SPI1: Embedded Master accesses MFW-Wifi through this SPI interface. User can
only use the relative IOs (SCK, MOSI and MISO) for SPI interface.
Note: In case hardware designer needs to support ZeroG WiFi module on different
I/Os, it is possible to change the default IO through managed code. Consult
ChipworkX library for further details.
2.6.2 Getting Started with WiFi Firmware
1. Attach MFW-WiFi Expansion board to development system as described in the
previous section.
2. Enable WiFi Interface (ZG2100) using ChipworkX.System.Net.Interface.Set()
method.
3. Restart the system.
4. Access TinyBooter and select Target->Configuration-> Network.
You will notice that Wireless Configurations are active.
5. Assign static IP address, Subnet Mask and Default Gateway (and DNS Address if
needed) according to your wireless network.
DHCP is also supported for this beta firmware.
6. Authentication: Ignore this field.
7. Encryption:
TKIP: It is considered as No Encryption (No security).
WEP: Fill in the key (64 bits, 10 hex digits) in the ReKey Internal field. (128 bits key
is not supported in the current release)
WPA: Fill in your Pass phrase.
WPAPSK: Fill in precalculated PSK: 64 hex digits (32 bytes) in Network Key field.
It is more recommended to use WPA option since it automatically calculates PSK
code.
You may use this tool as an example to calculate PSK:
http://www.wireshark.org/tools/wpa-psk.html
8. Radio check boxes are ignored.
9. Fill in the SSID field with ASCII HEX values.
For example:
SSID string is GHI-AP
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