Last updated on 7/12/2016
Using MATLAB R2008b is recommended. Versions earlier than R2006b are not supported. R2007b is also not recommended because the 'Foregroundcolor' and 'Backgroundcolor' properties of GUI buttons do not work properly.
However, if you need to synchronize the recording with an external TTL signal (e.g. image acquisition software), you need to use R2007b (or later versions) because the HwDigital trigger of AO object is not functioning in earlier versions......
It is reported by my colleague that Capmeter is not compatible with MATLAB R2008a... However, I'm sure using R2008b is fine because I finally had a chance to test it by myself recently... (10/25/2010)
I just noticed that some programs may give error messages if using MATLAB 2012 or later (I don't have versions between 2008 and 2012) because the syntax of some functions may have been changed (e.g. fileparts). In this case, simply following the error message to correct the corresponding code may help. (4/4/2013)
Capmeter7x86 is available (R2014b recommended). Please contact Prof. Hilgemann if you are interested. (7/12/2016)
The programs are developed for DAQ boards from National Instruments. However, you can use other DAQ boards supported by the MATLAB Data Acquisition Toolbox. Some adjustments of the codes may be required.
I use PCI-6052E from NI (AI 333kS/s, AO 333kS/s), but I recommend using the M-series board like PCI-6251 (AI 1.25MS/s, AO 2.8MS/s) since it is cheaper and faster.
The programs work fine in the following configurations:
Pentium4 2.53GHz, 1GB RAM, 25GB HD free space, Window XP SP2.
Capmeter1 serves as a plain chart recorder with digital filters and some useful functions.
Capmeter6 uses either sine waves or square waves to estimate cell parameters. Phase-sensitive detection (as used in lock-in amplifier) is applied in both cases. If square wave perturbation is selected, you can chose to use either integrated charges (Q-SQA) or direct current trace (I-SQA) for calculating the cell parameters.
Please cite the paper: Wang, TM and Hilgemann, DW. 2008. Ca-dependent non-secretory vesicle fusion in a secretory cell. J Gen Physiol. 132:51-65. [PubMed]
All programs are under the GNU General Public License (GNU GPL). Click here for detail.
If the acquisition board is originally supported by traditional NI-DAQ driver (e.g. E-series boards from NI), please do not use NI-DAQmx to drive the board. Click here for detail.
If you need to use TTL triggering in traditional DAQ-controlled boards, please click here for more information.
Copyright 2006-2016, Tzu-Ming Wang