speed up flash programming time

[George Leung]

Hi,

We are using Jlink and nrfjprog to program the nRF52832 flash via SWD interface. We have a combined hex file which is about 512k and takes about 12 seconds to flash it.

I tried to change the clock and seems not effective at all. I also search in the forum and cannot found clear solution on this topic.

Any suggestion can significant reduce the programming time? Our production is quite large (>100k per quarter), it would save a lot if the time can reduce. 

[awneil]

George Leung said:

Our production is quite large (>100k per quarter),

Perhaps you could consider getting the chips programmed by your supplier ... ?

[George Leung]

We have a PCBA test firmware and an application firmware, so the chip will be programmed twice. So it cannot be pre-programmed.

[awneil]

It could be pre-programmed with the test code.

That would halve your total programming time ...

[George Leung]

This is not practical for our case. The test code is much smaller than the app code.

Anyway we want to know any tricks could reduce the programming time? Is it already up to limited and no room to improve. Is there any Jtag tool apart from Jlink may help on this?