How do check ADAU1452 ready to receive SPI data after 3 dummy writes (following figure 35 in ADAU1452 datasheet)
Hi ADI Tech Support,
good day. we seek clarification on system initialization for the ADAU1452. the ADAU will be connected to an external host controller using SPI.
following Figure 35. Example of SPI Mode Initialization Sequence Using Dummy Writes in the ADAU1452 datasheet, how do we check if the ADAU1452 is ready to accept the register and memory configurations from the host microcontroller? is there a register that we can read?
following Table 27, after 3x SPI Dummy writes, "Enter soft reset" and "Exit soft reset" is executed. what is the delay required after sending "enter soft reset"?
in the Sigma Studio 4,7, we see that it is 1 ms. can we optimize this further below 1 ms?
Audio Signal Processors
adau1452
hardware
sigmaStudio 4.7
SigmaDSP Audio Processors
Hello Joshua,
Joshua said:
how do we check if the ADAU1452 is ready to accept the register and memory configurations from the host microcontroller? is there a register that we can read?
The easiest you can do is just read any register or have a small program with DC cell and read the DC value or any other parameters. If it returns a correct value as you set up, then you will make sure that you configured it correctly.
the second one is, according to table 13 of the datasheet, it says it must be low for 10ns. Actually, you don't need to worry about this delay.
Regards,
Harish
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