Woody Home Page
From PA1688 to PA6488 - G.729 Test Vectors
Dec 13, 2010
We have been using G.729 test vectors to test if hardware is stable from PA1688 to PA6488.
PA1688 has a SDRAM interface with very weak driving power. There was panic when we found many customers boards can not work steadily. We needed a method to test in exact bits rather than making a phone call. Then we came to the idea of using our DSP developers data of G.723.1 and G.729 test vectors. Based on those data, we provided with all manufacturers detail steps to verify each hardware board by running the test sequences and compare data bit exactly.
AR1688 does not need external DRAM, but we still need to test how fast our DSP can run stably and how different it was with PA1688. As normal AR1688 device does not have enough space to hold so many test data, we were using AR168DS programmer, which has 4pcs extra program flash, to run the G.729 test vectors.
Now we need to test both DSP speed and DDR2 DRAM interface with PA6488 devices. Although we have no plan to use G.729 with PA6488 devices, we still have decided to use its test vectors in our hardware test, mostly because I like to do repeated jobs. As it is the 3rd time to do the same job, I have finished the calling interfaces and testing process very quickly.
However, I am never an algorithm guy. What I know about G.729 is only those calling interfaces. All Palmmicro G.729 implementations were done by Ph.D candidates in the past 12 years.

No comments for this page yet. All Comment

More options? Please login or register account.