Simultaneously accessing emif on arm and DSP on different chip-selects

varun sharma1

I have two FPGAs connected to Dm6446 over Emif , spartan connected on CS3 and virtex on Cs4 ,spartan is interfaced with arm and virtex to dsp, can I use it simultaneously, is it feasible?

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Moving this to the correct forum.

0 Titusrathinaraj Stalin over 9 years ago

TI__Guru** 116100 points

Both CS pins were using the same AD lines for both FPGA ?

0 Senthilkumar Srinivasan over 9 years ago

TI__Mastermind 43660 points

Varun,

Though you have different chip select for the two FPGAs, the address and data lines would be common for both. So it would not be possible to access both the FPGAs simultaneously.

Regards,
Senthil

0 varun sharma1 over 9 years ago in reply to Senthilkumar Srinivasan

Prodigy 240 points

Hi,

Thanks for reply.

So, it means should i shift either both spartan and virtex access to ARM or both spartan and virtex access to DSP, i mean only one core should access both Chip select.

Regards

Processors

Processors forum

Simultaneously accessing emif on arm and DSP on different chip-selects