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Part Number: BQ79718EVM-049
Hi,
We use BQ79600EVM as the base device which is connected to two stack BQ79718EVMs. The chip on first 718EVM baord is PBQ79718B1, and the second 718EVM chip is BQ797918Q.
We test through following procedures:
PBQ79718B1 (718EVM PBQ), BQ797918Q (718EVM BQ)
The test software we use will switch the communication direction alternately, single read once and stack read once, and then switch the direction to repeat the operation again after completion.
Forward (DIR0) reading is fine, but reverse direction (DIR1) can only read in single, we only get 0x7F 0xFF 0xFF 0xFF 0xFF....... using stack reading.
If we swap the two boards in HW and use the same software, the stack reading in forward direction fails, only 0x7F 0xFF 0xFF 0xFF 0xFF....... . There is no problem reading in reverse direction.
It seems the 718EVM with BQ797918Q can not be set as top stack if using stack read.
79600 fault register information:
This fault causes the SPI_RDY signal to remain low until a reset by COMM_CLEAR.
79718 fault register information:
Is there any issue with this board? Thanks in advance.
