HI Josh,
Welcome to the world of manufacturing. I have about 45 fully assembled,
non-functional NADSBox PCBs that can never be sold. For the first run,
the Chinese manufacturer glued the SD card to the PCB and the glue
squeezed up into the connector, obstructing the SD card from full
insertion. They reworked as many as they could, but many were simply
trash. Plus I have a whole run of 75 bare PCBs still in the vaccum
shrink packaging because I submitted the wrong (old) REV of Gerbers for
the final run. Yield fall-out and improvement is something that huants
all manufacturers in this industry.
Ken
On 10/22/17 2:01 PM, Josh Malone wrote:
Built my first functional REX on the castellated PCB. Programs and tests okay.
But, I've also built me second non-functional REX, too. So far I'm
3-out-of-5 for successful builds. Not sure I'm really up to this. :(
Maybe I can figure out what's wrong w/ this board. Impact says it
finds lots of unknown devices on the chain and barfs. Reflowed the
CPLD pins but it didn't help. Bugger.
At least I have one functional REX for my 102, so, yay!
-Josh
On Fri, Oct 20, 2017 at 10:05 PM, Brian White <[email protected]> wrote:
That would be awesome of course!
On Oct 20, 2017 12:35 PM, "Stephen Adolph" <[email protected]> wrote:
good to hear the castellated board is working.
I revised the REX PCB design to (1) remove unneeded parts (2) use ground
and power planes and (3) provide a pad to bridge 3.3V onto PORT_EN with a
solder bridge. I don't myself plan to test the board but I can post it for
others to test.
Steve
On Fri, Oct 20, 2017 at 12:23 PM, Josh Malone <[email protected]>
wrote:
My parts should arrive tomorrow. How to take a stab at try two soon.
thanks to everyone for all the help.
On Oct 20, 2017 11:38 AM, "Brian Brindle" <[email protected]> wrote:
Reflow of the board seemed to fix it. Guess I need to play around with
my methods a little. Working as expected right now.
On Oct 20, 2017 8:31 AM, "Brian White" <[email protected]> wrote:
Yeah that looks good.
On Oct 20, 2017 6:32 AM, "Brian Brindle" <[email protected]> wrote:
I'm using some AM29F800BB-90EF I had. Waiting on the AM29F800BB-7EK
from China still. Should be here today.
On Oct 19, 2017 8:47 PM, "Brian White" <[email protected]> wrote:
What exact flash part number do you have?
On Thu, Oct 19, 2017 at 1:22 PM, Brian Brindle <[email protected]>
wrote:
I have one put together that programmed up OK but am having issues
getting the REX software on it. It erases all the blocks just fine but hangs
when re-loading to block 0. Probably something up with the flash..
I'll report back when I have more info.
Brian
On Thu, Oct 19, 2017 at 7:25 AM, Stephen Adolph
<[email protected]> wrote:
Has anyone made a REX successfully with that modified PCB yet?
I would like to know if that artwork is good or bad.
..Steve
