Programming multiple nRF51822

[Vasco Tesi]

Hello,

which is the best solution for programming multiple nRF51822 using a Segger programmer ? We have to produce a lot of BLE tags and i'd like to automatize programming and testing operations, in order to program /test multiple tags with a single operation. I thinked about a tree of analog multiplexers for RST / SWDIO and SWDCLK signals coming from Segger programmer , by which these signals can be sent in sequence to one of the tags at a time . SWDCLK is unidirectional? That is, is it generated by segger programmer and not by nRF51822 chip?

[Nguyen Hoan Hoang]

How about a bunch of low cost, in the range of $40, debug jtag with drag & drop programming instead ? When plugged in your PC USB these boards will show up as USB disk drive. All you need to do is to copy your firmware over. This can be with a batch command to copy the same file over multiple USB disks.

[Nguyen Hoan Hoang]

You can connect them to a USB Hub but that's probably to much for a single PC. I don't know how many a single PC can handle but each one will use one drive letter in window so there is a limit. Linux does use driver letter mapping so may be possible. In any case, you buy a bunch of those for cost of one jlink. The size of the board is about 50x20 mm. It does not take much space in the production area. PM me for more details