Tools : ISD, ISA

The RadioInfoEM250 fields, used with the EM250 and EM260 chips, break down as follows:

• CRC: The 16-bit CRC (cyclical redundancy check) checksum for the received packet. This is used to detect bit errors in the reception. The value here is the actual CRC calculated by the receiver radio, which replaces the CRC appended by the transmitter, and if the values are equal then the “CRC Pass” flag is marked true.

• Raw LQI: The raw (unconverted) LQI data about the received packet. This is measured by the receiver and appended to the packet data as part of the reception process.

As the interfaces and pinouts and protocols are quite different between
the EM2xx chipset (which uses the 16-bit XAP2b architecture and the proprietary SIF debug/programming protocol from CCL) and the EM3xx chipset (which uses the 32-bit ARM Cortex-M3 architecture and the more standardized JTAG and SerialWire debug/programming protocols), there’s no compatibility (in either direction) between the development tools from one
platform and the devices/chips from the other platform.

Currently, the ISA3 (EM3xx-era ISA) is the only device that can be used to program
EM3xx chips, and the ISA [

The functionality of the serial stream on the Serial 1 tab has some hardware and software dependencies on the embedded side, so while you may suspect problems on the PC side, your computer’s setup probably doesn’t have anything to do with the problems in this case…

In order to use the Serial 1 tab through InSight Desktop Console, the following steps must be met (no specific order):

• Firmware running on Ember node needs to be built with serial driver support (app/util/serial/serial.c) and Serial Port 1 should be initialized (via emberSerialInit()) in the software.

• Firmware on node

At times customers have reported seeing unexpected output from the EM2xx Utilities (em2xx_load/patch/read) or their EM2USB counterparts, where the output contains a repeated message like:

 XAP2= DbgEna Shift register is all 0's
 XAP2= Stop Shift register is all 0's
 XAP2= DbgEna Shift register is all 0's
 XAP2= Reset Shift register is all 0's
Shift register is all 0's
Shift register is all 0's
Shift register is all 0's

…or something like this:

 XAP2= DbgEna LOADB stuck low
 XAP2= Stop LOADB stuck low
 XAP2= Reset LOADB stuck low
 XAP2= Issuing SW_RESET
  

The RFEval plugin of InSight Desktop was removed as of InSight Desktop 2.0 for several reasons:

• It did not meet Ember’s standards for quality
• The plugin was designed for use with Ember’s RF Evaluation Kit (which has been discontinued) rather than the development kit hardware.
• The plugin tests only MAC layer functionality, which is not representative of the performance achieved in a multi-hop, mesh network.

For evaluating RF performance in ZigBee networks, please use the new and improved RF Evaluation Firmware, designed by Ember partner Global Edge Software (GES), which can be f