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?

[kaku]

One of our customer uses following method to program multiple nRF51822 targats in production line. I briefly explain to sequentially and automatically prorogram 2 target-boards by nrfjprog.exe command.

For example:

1. Connect 2 segger J-Links(target-board) on one PC by each USB cables.
2. Suppose that one segger J-Link serial number is 000000001, the other is 000000002.
3. Program both Softdevice S110 V6.0.0 and ble_app_hrs.hex for target #1 such as follows. nrfjprog.exe --snr 000000001 --programs s110_nrf51822_6.0.0_softdevice nrfjprog.exe --snr 000000001 --program ble_app_hrs.hex
4. After finishes to program target #1, same as commands to program target #2 by chaniging J-Link serial number such as follows. nrfjprog.exe --snr 000000002 --programs s110_nrf51822_6.0.0_softdevice nrfjprog.exe --snr 000000002 --program ble_app_hrs.hex
5. Let step #4 & #5 automate on your console window.

How many targets boards would you try to program at once ?

[Vasco Tesi]

Hello kaku, I have to program about 20-30 chips at once , and i'd like also to test them automatically (so i need to perform a reset for each chip at a time , so entering it in normal mode with its application running). You also recommend multiple programmers , but i have not clear how to have so many usb connections on a PC.