Sending Volume Data from Pic32 to ADAU1452 using safeload procedure

Hi,

I am trying to send volume data from Pic32 to Sigma ADAU1452 via I2C Bus. I am following the safeload procedure mentioned in the DSP datasheet but it is not working for me. I am using the volume data, no of bytes and target register address from my sigma studio project. If I run my project directly from sigma studio it works perfectly.

I am trying to do the following as per safeload procedure: I have taken the register addresses from compiler.log file of sigma studio project.

1.I am sending 4 bytes of volume data to data_SafeLoad (0x0).

2. Send the target register address to address_SafeLoad (0x05)

3. Send number of words to write/safeload trigger num_SafeLoad (0x06).

4. Send 30us Delay.

My Data is formatted as follows:

uint8_t Data[5] = {0x00, 0x00, 0x19, 0x99, 0x9A}; // Volume Data
uint8_t Data_1[2] = {0x05, 0x0030}; // Register address
uint8_t Data_2[2] = {0x06, 0x01}; // No.of words

Note: I have observed the I2C bus and the data seems to be transmitting fine but when I read back the data it seems to have changed.

Audio Signal Processors

adau1452

i2c

pic32

pic microcontroller

SigmaDSP Audio Processors

SigmaDSP

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