Kelly Murray wrote:
The needle idea sounds good, just some holes can be put on the circuit board, that shouldn't be a problem.

i'm not sure were talking of the same thing, i'll try to explain what i mean.

- your product has test pads, those are just large pads without holes (1.5mm diameter or so).

- the test adapter has the needles that contact on the testpoints
i just picked the first hit on google, but here is what i mean with "needle", seem like "spring probe" is one of the english names:
http://www.polarinstruments.com/products/accessories/images/part%20no-ACC305.jpg
http://www.ectinfo.com/files/product/contacts/pogo_plus.html

maybe someone that knows the english terms can jump in and explain it a little better ;-)

chris

> I'll look into the msp430-jtag program.
Thanks!
-Kelly


Chris Liechti wrote:

Kelly Murray wrote:

I'm getting ready to do production of some product, and now have some production issues to solve.
I need to load the base code into
the x1101 chip, and a unique number in the "info" area.
My first question is how to use the gdbproxy to write just the info area. I suppose I could use a variable that points to the area, and issue variable assigments in the debugger. That seems quite error-prone. Is there someway to specify a binary file to write to the area? More generally, using gdb to load in the flash code seems cumbersome. In addition,



well, then use e.g. msp430-jtag, easy to use command line tool.
or there are commercial programmers with hardware+software

i'd, make a simple script that generates the data for the info flash, attach that to the intel-hex file and programm the result with msp430-jtag

I can't really have a 14-pin JTAG interface on these boards, they are very small, I've so far used the minimum 8-pin interface, actually an edge connector, but I'd like to elminate that as well, maybe just 8 small pads I could us a pressure contact with?



yep, its a common technique to use needles in a test adapter. i dont know if thats the correct english name for these. but you should easily find them in a store fo equipment for test infrastructure.

I've been reading about the Bootstrap loader as an alternative, but it still needs 6 pins to interface with.



RX, TX, RST, TST, GND -> 5 pins, you probably have a supply on board anyway.

JTAG can be used with 5 pins too, but it's recomended to connect the RST pin too

I really don't need to flash these chips later, in fact, making it hard/impossible might be good.



there is a JTAG fuse that can be burnt with some programmers.

Is it possible to take the 20-soic IDW package surface mount chip and use some fixture to temporarily attach it to something with a JTAG interface, and then have it soldered onto the production board?



its cheaper to make a PCB with some holes and connection needles

The surface mount tabs are quite small, this seems difficult, I have not seen such a device available for sale.



there are sockets (for manual mount and remove) for them but they are very expensive

chris


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