HS2 Support for OScan7?

[AkhilMK]

Hi,

I'm using below sequence of operations to use OScan1 scan format in HS2.

1. Lock ZBS at control level 2

2. Enable CGM using Store Misc. Control command (00000 00111)

3. Store Scan format (00011 01001) // 00011 nnnnn; nnnnn = 9 for Oscan1

4. DjtgSetScanFormat (hif, jtgsfOScan1, fFalse)

5. Control Level exit

I would like to optimize further using OScan7. Does HS2 support Oscan7? If So, how would I use it?

[JColvin]

Hi @AkhilMK,

The JTAG HS2 does physically support OScan7 and Adept SDK does offer some software support for OScan7. It sounds like you are already working with Adept SDK, but in case you don't, it is available for download on it's Resource Center here: https://reference.digilentinc.com/reference/software/adept/start. I would recommend taking a look at the DJTG Programmers Reference Manual for more details on setting up OScan7. The DjtgTwoWireDemo shows an example of changing JTAG scan modes. We do not have any specific examples using OScan7 because at the time of creation (and still the case as I understand it) we did not have any end hardware that supported OScan7. If you haven't already, I'd recommend checking that your hardware supports OScan7 as well.

Thanks,
JColvin