Assembly status:
We have completed both board level and final assembly. Unit testing has been delayed due to firmware issues and lack of ktest utility. We have been testing with rough values using the old firmware, which will assist us in expediting final testing, which expect to complete within two days.
The firmware bug causing high error rates has been discovered and corrected as of early this morning. We are continuing to run tests, but believe the base firmware is now stable. We have also greatly reduced the performance issues when connecting multiple units within CGminer. Currently, we are running stable at 300mhz at 4.9gh/s, with less than 0.5% errors.
We are continuing to work on the USB bootloader, which we hope to have finalized this week. Once the USB bootloader has been completed, we will begin work on the I2C connection and optimizing the firmware, while continuing to optimize CGminer.
We have received requests to ship the units in their current state, without the ability to update the firmware via USB. We are now accepting requests to ship units as-is, but advise against it. This option should only be considered if you have a large order and are comfortable with programming. Currently, the only method of flashing the units is to use a Pickit3 Pic programmer with a suggested pogo pin adapter, connected to a host running MPLAB IPE/IDE. This is a fairly complex process for those unfamiliar with programming, and materials costs are ~$80. Units shipped without the USB bootloader will require initially flashing the units using the on board ICSP pads to update the firmware to allow USB updates.
If you would like to request your units shipped as-is, please ensure the shipping address provided on your liquidsyndesigns.com account is correct, and reply to this email with the subject “Please ship my units without USB bootloader”.
Assembly refunds:
We have been working on the assembly refund process as time permits, and will be sending an email with instructions in the next few days. We appreciate your patience in this matter.