Hi.
My application needs to perform Crypto operations from code running on both the CM0+ and the CM4 cores. The PDL documentation is a bit confusing on the issue. On the one hand, it says,
"Only one Crypto server and only one Crypto client can be run at the same time on any core. [Emphasis mine]"
Suggesting that you cannot run two clients on a single core, but that running a single client on each of the two cores is not prohibited. It then goes on to say,
"So, valid configurations are:
- one server instance runs on CM0+ and one client instance on CM4 (and vice versa).
- one server instance and one client instance run on CM0+ (** This is not recommended, use Direct Crypto API's to perform Crypto operations on a single core).
- one server instance and one client instance run on CM4 (** This is not recommended, use Direct Crypto API's to perform Crypto operations on a single core)."
This suggests that you cannot have more than one server and one client. In other words, having one server and two clients, one on each core, is not allowed.
The PDL then says,
"IPC communication between the client and server is completely transparent. Using IPC for communication provides a simple synchronization mechanism to handle concurrent requests from different cores. [Emphasis mine]"
Which suggests that running a client on each of the two cores is allowed.
What is the definitive answer - can I run the Crypto server on, say the CM0+, and run one client on the CM0+, with a second client on the CM4? Or otherwise have access to Crypto functions from both cores?
Thanks,
-Nick
