Multi Device Programming Design

ElectronicMan

Hi,

I want to program multiple device...And this picture is my programming design. Everytime i will program one device and different codes. So i will adjust reset pin to target device. Only active device must be wired to nTRST. I dont want to use debug. So Can we redesign this for less wire ? or Will this design work ?

I wanna only program target with less wire, less connection.

over 13 years ago

0 Hari Pendurty over 13 years ago

TI__Intellectual 1480 points

Hi,

Using nRST to select a target device for programming will not work as it will break your jtag daisy chain. My recommendaition would be to bypass all the non selected devices through jtag hence only enabling/selecting the device you want to program.

Regards,

Hercules forum support

0 ElectronicMan over 13 years ago in reply to Hari Pendurty

Prodigy 145 points

You recommend bypass all the pins ? This is using like one device. And this isnt work for me. i want to use less wire connection. Any other ideas or examples ?

or this can be work with reset selection ? all tdi and tck inputs are unique and connected.

http://i.imgur.com/nKPrN.jpg

Arm-based microcontrollers

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Multi Device Programming Design