Change the clock frequency of GPIF II in FX3

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
TeMa_2997106
Level 6
Level 6
Distributor - TED (Japan)
10 likes received 10 solutions authored 250 replies posted

I want to configure the GPIF II interface of CYUSB3014 in 32-bit parallel bus + Slave FIFO mode (bidirectional).

This clock frequency is stated in the data sheet as a maximum of 100MHz, but is it variable if it is 100MHz or less?
I want to change to 50MHz / 66MHz / 80MHz.

Also, if I change the clock frequency, do I need to change the FW? If it is yes, where and how should I change it?

Thanks,
Tetsuo

0 Likes
1 Solution
Biren_R
Moderator
Moderator
Moderator
First question asked First like given 250 sign-ins

Hello Tetsuo,

In the synchronous slave modes, the supported interface clock range is from 10 MHz to 100 MHz.
For reference, you can refer to this KBA

Best Regards,
Biren

View solution in original post

0 Likes
4 Replies
Biren_R
Moderator
Moderator
Moderator
First question asked First like given 250 sign-ins

Hello Tetsuo,

In the synchronous slave modes, the supported interface clock range is from 10 MHz to 100 MHz.
For reference, you can refer to this KBA

Best Regards,
Biren

0 Likes
TeMa_2997106
Level 6
Level 6
Distributor - TED (Japan)
10 likes received 10 solutions authored 250 replies posted

Biren-san,

Thank you for your comment.

I read the KBA you showed.

In my understanding, in Slave mode, the user does not need to set anything in GPIF or FW. Is it correct?

Thanks,
Tetsuo

0 Likes
Biren_R
Moderator
Moderator
Moderator
First question asked First like given 250 sign-ins

Hello Tetsuo-san,

Yes, you are correct user does not need to set anything related clock in the GPIF tool or FW.

Best Regards,
Biren

0 Likes
TeMa_2997106
Level 6
Level 6
Distributor - TED (Japan)
10 likes received 10 solutions authored 250 replies posted

Biren-san,

Thank you very much again.

I can understand.

 

Thanks,

Tetsuo

0 Likes