Problem about Initialization
I use mcu (stm32f107vc) communicate with adau1442 via i2c.the mcu can read date from eeprom,but it can't read from adau1442(There is no response when I send 0x70 to adau1442).if there is something wrong with Initialization.
I noticed the System Initialization Sequence
1. Power on the IC and bring it out of reset. The order of the power supplies (DVDD, IOVDD, and AVDD) does not matter.
2. Wait at least 10.667 ms for the initialization to complete if the XTALI input is 12.288 MHz and the PLL divider is set to 4 (see the Power-Up Sequence section for information about calculating the initialization time if another fXTALI is used).
3. Enable the master clocks of all modules to be used (see the Master Clock and PLL Modes and Settings section).
anyone can tell me what wrong with it?
shutian
Audio Signal Processors
adau1442
SigmaDSP Audio Processors
Hello,
Can you send a picture of the I2C signals? It's possible that there is a problem with your communication format.
Are you following the suggested register/memory write sequence as shown in the capture window of SigmaStudio? In order to see the data downloaded by SigmaStudio, simply open the Capture Window (Ctrl+5) and perform a link-compile-download. All data downloaded via I2C to the device is shown in the capture window.
You can also use our tutorial here to automate the creation of most of your microcontroller code, allowing you to perform a complete initialization without needing to write more than a few lines of code:
Hi,BrettG
I have solved this problem.The Reset Pin is error. in the first step of initialization"1. Power on the IC and bring it out of reset. "I didn't bring it out of reset,that's why I can not write and read anything.
thank you all the same.
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Thank you,
EZ Admin
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