Activity

From 02/03/2014 to 03/04/2014

03/04/2014

01:34 PM Selecting Components for Easier Manufacture
I'm a big fan of alternate components and designing in the ability to use alternate components through resistor "stra... Andrew Kohlsmith
11:48 AM iPhone 4 HSMC Interface Bug #473: TPS62203 doesn't go up to 5V
Alternate parts with the same footprint. Minor board changes required, generally shorting out the inductor and either... Andrew Kohlsmith
09:02 PM iPhone 4 HSMC Interface Bug #473 (New): TPS62203 doesn't go up to 5V
U2 was chosen to take the 12V HSMC rail down to 5V to supply AVDDH on the LCD. This won't work, because the TPS62203 ... Andrew Kohlsmith
11:15 AM iPhone 4 HSMC Interface Bug #474 (New): silkscreen for J2/J3 should indicate what is being selected
Right now you have to look at the traces or schematic. The silkscreen should be updated to document the jumper positi... Andrew Kohlsmith

03/02/2014

10:24 PM Busy, busy, busy
It's been busy here. I've just sent a set of board files off to "Hackvana":http://www.hackvana.com/ for manufacture. ... Andrew Kohlsmith
10:07 PM iPod Nano 6 Display Breakout Bug #469 (Feedback): RST#, BL lines should have pulldown as appropriate
Applied in changeset nanov6|commit:dd7a3538aadc34740b98c8baf41020457301695f. Andrew Kohlsmith
10:07 PM iPod Nano 6 Display Breakout Bug #471 (Feedback): 3.3VEN signal is active low... make it active high
Applied in changeset nanov6|commit:c32c1ad91d43bd54e9a9f71ce357a46d15634e97. Andrew Kohlsmith

03/01/2014

03:16 PM iPod Nano 6 Display Breakout Bug #471 (Feedback): 3.3VEN signal is active low... make it active high
I just noticed that the 3.3VEN signal is active-low. I don't recall why I would have done such a thing. It should be ... Andrew Kohlsmith
03:12 PM iPod Nano 6 Display Breakout Bug #470 (Rejected): determine TBD values for backlight boost converter
R8/R9 values are currently marked TBD. this should change. Andrew Kohlsmith
03:07 PM iPod Nano 6 Display Breakout Bug #469 (Feedback): RST#, BL lines should have pulldown as appropriate
Just from a "nice to have" perspective, RST# and BL are the only two signals that don't have a defined state when not... Andrew Kohlsmith
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