Other Parts Discussed in Thread: TDA4VH
Tool/software:
Hi TI Experts,
Customer SOP TDA4VH for a long time, and recently they found a TDA4VH will fail when booting up, and the current will stuck at 0.56A.
After many testing, customer found the root cause that the problem board will fail in DDR2 (DDR controller 2) memcpy, and they did the ABBA test, and found this problem is related to TDA4VH not related to DDR.
They have done two ABBA tests.
1: Put the DDR which is normal on the good board to this problem board to replace the DDR on the problem board, the problem still exists.
2: Put the TDA4VH which is normal on the good board to this problem board to replace the TDA4VH on the problem board, the problem disappears.
They use the following coding to test the memcpy for DDR0, DDR1, DDR2, and DDR3 respectively.
（1）testing 0x80080000 ~ 0x80080080 memory copy, inside DDR0, result: normal
（2）testing 0x80080080 ~ 0x80080100 memory copy, inside DDR1, result: normal
（3）testing 0x80080180 ~ 0x80080200 memory copy, inside DDR3, result: normal
（4）testing 0x80080200 ~ 0x80080280 memory copy, inside DDR0, result: normal
（6）testing 0x80080280 ~ 0x80080300 memory copy, inside DDR1, result: normal
（7）testing 0x80080300 ~ 0x80080380 memory copy, inside DDR2, result: stuck at DDR2 memory copy, failed!
Customer repeats the testing for multiple times, but all will stuck for DDR2 memory copy testing shown below.
May I know could customer return this TDA4VH piece for our internal analysis?
Thanks,
Kevin
