Have a good day Everybody,
I tried these configuration by using try and error method,
a) Power from USBi to program but External Power adapter 5V to evaladau1701 is used for read operation.
b) Slow down the Arduino Uno (master) a bit => by enabling at least SPI.setClockDivider(SPI_CLOCK_DIV8); or SPI.setClockDivider(SPI_CLOCK_DIV16); in the Arduino code.
c) SPI interface: Bi-directional level converter is used except for the MISO line.
d) on/off the writeback circuit by adding switch at transistor pin (collector) and ADDR1/CDATA/WB pin at ADAU1701.
-ON writeback circuit to download sigmastudio program into ADAU1701.
-OFF writeback circuit to enable SPI control.
Alhamdulillah, now the result I got is stable so far.
My Question, am I degrade in any way of the performance of the system when I used this clock divider to slow down the master?
(edit: one cycle period will be increase which mean the performance will be degraded in term of speed)
How can I relate the clock divider of Arduino and clock for ADAU1701 so I can match both devices to operate nicely/synchronously?
By default, Arduino Uno Clock is set to SPI.setClockDivider(SPI_CLOCK_DIV4); hence I expect the problem occurs is caused by the adau1701 can’t catch up with Arduino speed.
Could anybody please explain/comment if any?
Thanks and Best Regards,
KaL