1.60 Alpha

ALERT! This release isn't for production use! This release is for developers working on fast logging. For general release, see release 1.5 below.

This is first-checkin of code with fast logging to disk. 1Ksps verified in release mode without any drops. This release (and future releases) will require a hardware modification to work.

If you are able to solder, you can easily make the modification yourself. First you need to remove the top lid from the QA350. This requires you to remove the top two hex head screws on the front panel. Notice the front panel has 4 head head screws at located at the corners. The upper left and upper right can be unscrewed with a 2 mm hex bit.

After removing the two front-panel screws, then using a small Philips screwdriver remove the 6 flat-head screws on the left side of the case, and then the 6 flat head screws on the right side of the case. The top case should lift off at that point. When you re-assemble, be gentle and make sure the screw is perpendicular to the case as its easy for the tiny screws to strip out the threads on the case if you turn too hard or if they feed in crooked.

On the P3 PCB (most recent), there is a header marked J204 on the left side of the board. Pin 1 is marked with a round solder pad, while the other pins have square solder pads. The pad numbering is as follows:

1 2
3 4
5 6
7 8
<etc>

Pins 5 and 6 need to be shorted together with a small drop of solder or other means. In the picture below, you can see the numbering for pin 1 (round pad) and 2, and also 5 and 6. What is shown is a 0 ohm resistor jumper from pin 5 to pin 6. You can also use a short length of wire. In the picture there is a blob of solder on pin 3. That isn't needed and was just the byproduct of messy work.

Once pins 5 and 6 are connected, double check your work and then close-up the QA350.

You will need to update your QA350 flash when running for the first time. This release requires firmware version 10 or later. If you try this release and update your firmware to version 10 or later, then you will need to downgrade your firmware back to version 6 when running 1.50.