Part Number: TDA4AP-Q1
Other Parts Discussed in Thread: TDA4VH
Posted on customer behalf:
We use the J784S4 - TDA4VH SoC on two different hardware variants with a similar design and hardware components.
Both variants are based on the same Linux image.
During our performance measurements on the R5F cores , we found that one board variant is about 30% faster than the other – despite the identical software basis.
The test on the R5F cores measures the efficiency of read and write operations on the corveout’s (memory region =) located on the LPDDR4.
test_heap_memory_region: heap-memory@b7000000 {
compatible = "shared dma pool";
reg = <0x00 0xb7000000 0x00 0x30000000>;
no-map;
};
test_stack_memory_region: stack-memory@e7000000 {
compatible = "shared dma pool";
reg = <0x00 0xe7000000 0x00 0x180000>;
no-map;
};
-Does the "Diamond" representing the minimum requirements need to be centered around the purple field and or fit completely into the green area?
-In addition, we would be grateful for a brief explanation of the importance of the purple area in the diagram.
Thank you for you rsupport!
Marinus
