TDT RZ2 Manual page 341

System 3
Battery Operation and Charging
The stimulator has an onboard, 240 Wh battery for device operation. The battery
charges whenever the Mains power is connected and the Mains power switch is in
the on position.
Software Control
Operation of the stimulator system is controlled via an RPvdsEx circuit that runs on
the connected RZ base station. TDT recommends using the
(pictured below) in your control circuit. This macro simplifies control of stimulator
signal outputs and bank monitoring.
Note: The label on the additional fiber optic port on the back of the RZ processor will
indicate which DSP is used to control the stimulator. The
assigned to this special DSP.
Setting
StimSignal:
MonBank:
Monitor:
StimChan_Num
Note:
Selecting Voltage or Current Mode
The IZ2_Control macro should be included in all circuits. The Stimulation Mode
setting on the Setup tab of the macro properties dialog box determines whether the
stimulator is configured to output in voltage mode or in current mode.
Note: The IZ2M/IZ2MH must be set to Current mode. The IZ2MH must have the High
Current Range option must be enabled. It will default to safe mode until set
correctly.
Important Circuit Design Considerations
Sampling Rate
The IZ2M/IZ2MH can control 64 channels at up to 50 kHz. The stimulator sampling
rate is the same as the sampling rate of the circuit running on the RZ device, so
the maximum sampling rate of the stimulator is also limited to the maximum sampling
rate of the type of RZ device controlling it.
Description
Multi-channel floating point input stream of stimulus waveforms
Select which bank of eight channels to update on the monitor
output (integer, 0-15)
Multi-channel floating point monitor output
Enable Updating
, and
IZ2_Control
IZ2_Control
are for SH16-Z/IZ use only.
7-27
macro
macro must be
IZ2M/IZ2MH Stimulator