Other Parts Discussed in Thread: DRA821, TDA4VH, DRA829, DA8XX
Tool/software:
Champ,
Customer feedback QSPI Flash on J7200 EVM will switch back to 1 bit mode if clock set over 25Mhz.
Customer found the QSPI flash boot time is slow then check SDK default QSPI clock setting is 25Mhz.
Customer try to set it to 40Mhz to reduce booting time but found it getting slower.
Then they use oscilloscope to measure the waveform and found it will turn back to 1 bit mode while original operating in Quad bit mode.
Is it possible to increase QSPI clock but still stay in quad bit mode? AM62x and AM64x has no such limitation in SDK.
BR, Rich