Multichannel Systems nanoZ manual - Manual (Page 40)

nanoZ User Manual
36
Appendix
C:
Channel
Mapping
The nanoZ application stores adaptor and electrode site mappings in the
ʻelectrodes.iniʼ file, which can be accessed from the link in the Windows Start
menu. You can use a standard text editor to add, remove, or modify the existing
channel mappings, however care must be taken to adhere to the correct syntax
described in this Appendix. We recommend you make a backup of ʻelectrodes.iniʼ
before making any changes to this file.
Adaptor
definitions
The mapping between the nanoZʼs internal 64 channel
MUX and the two native Samtec connectors is depicted
here (as viewed facing the connector, with the lowest
channel numbers closest to the USB port end of the
nanoZ). Use this numbering scheme when programming
the channel selection in the Matlab SDK, or when designing
custom-made electrode adaptors.
The electrode reference pins (R1, R2 and R3, shown in red)
cannot be selected by the nanoZ software, however R1
must be physically connected to the electrolyte in order to
complete the circuit. R2 and R3 are not currently used but
are reserved for future versions of the nanoZ.
To describe the format of the adaptor definitions contained
in ʻelectrodes.iniʼ, the NZA DIP16 adaptor mapping is used
as an example in the following step-by-step instructions:
1. choose a name for the adaptor, and enter it on a new line
in the [Known Adaptors] section. Spaces are allowed, but
the last character must have an ʻ=ʼ sign to be recognized.
For the DIP16 adaptor, the entry is NZA DIP16=.
2. create a corresponding section name for this adaptor by
adding the adaptor name to a new line, enclosed in square
brackets (e.g. [NZA DIP16]).
3. the next few lines define the adaptor name, description, adaptor pin
dimensions, and whether the pins are round or square. The values assigned to
the Name and Description fields will appear in the drop-down list of known
adaptors and in the Report window, respectively. They should be succinct yet
descriptive, and include version identifiers if multiple versions of the same
adaptor exist. The ContactSizeX and ContactSizeY determine the relative size of