I have a question about components of amba design kit.
Is it correct design which contain arm cortex m3 with ahb-lite system bus, components bus matrix and ahb2apb bridge from amba design kit?
Diagram with components connection in design is attached.
AMBA Design Kit does provide the Bus Matrix and AHB 2 APB bridge. However, the Cortex-M3 processor is not included.
Note 1)
The connection between Cortex-M3 processor and the bus matrix, and the connection between bus matrix and AHB to APB bridge are all AHB Lite. However, these bus connections might also contain additional side band signals not covered by AHB Lite specification.
Note 2)
The Cortex-M3 processor was developed before AHB Lite (AMBA 3.0) specifcation was created. So the HRESP signals are two bits. Whereas HRESP in AHB Lite specifcation is 1-bit.
For new designs we recommed customers to use the Cortex-M System Design Kit (CMSDK).
http://www.arm.com/products/processors/cortex-m/cortex-m-system-design-kit.php
This has more components and has example system for the Cortex-M3 processors, and more up to date tools and software support.
There are multiple suppliers for AHB/AHB Lite components. ARM's CMSDK and AMBA Design Kits are two of the common choices.
regards,
Joseph
Thanks for the answer!
But I found an example of system which based on arm cortex-m3 and adk components (CoreLink DMA Controllers - ARM, http://www.arm.com/images/DMA_230_Example.jpg).
Did I understand correctly that design with CMSDK is recommended, but design with adk is correct too?
And one more question. Is it correct design with arm cortex-m core, Corelink Interconnect NIC301 and ahp2apb module from ADK?
Yes, Many components in the AMBA Design Kit (ADK) can be used with the Cortex-M3 processor.
However, ADK don't have any example system for Cortex-M processors. Also, there are more features in the CMSDK.
In simple Cortex-M3 based systems there is no need for NIC-301. But it is likely that you have a AHB to APB bridge for APB peripherals.