TAS6754-Q1: How to make real time diagnostic work?

Hi 

The most easy way is to use PPC3 software get the correct script. These function needs some DSP register settings.

Could follow below link to apply

https://www.ti.com/drr/opn/TAS6754-Q1-SW

https://www.ti.com/secureresources/PUREPATHCONSOLE

I checked this link.  This is for EVM. I am software engineer, and don't have EVM. I only want to know how to make real time diagnostic work. I just need simple steps for register setting? 

Hi Jianpeng

Have a try with below script.

w e0 00 00 # page 0x00
w e0 7f 00 # book 0x00
##### Isense Config #####
w e0 05 0F #enable isense
w e0 5B 08 #enable offset calibration
##### RTLDG Config #####
w e0 37 1F # enable SLOL
w e0 38 0F #S2PG
w e0 00 00 # page 0x00
w e0 7f 8c # book 0x8c
w e0 00 22 # page 0x22
w e0 98 00 11 f8 00 # open threshold
w e0 9c 00 01 f4 00 # short threshold
w e0 00 24
w e0 a0 00 3f 70 00 # pilot tone ramp down speed

w e0 00 00
w e0 7f 00

Is this for TAS6754-Q1? I didn't see these registers in datasheet.  Also there are registers used in page 0x22, what's about? for register 0x37 and 0x38, there is no definition in  datasheet

Hi Jianpeng

Like I said previously, lots of the function needs DSP support. All of the Book8C registers works for DSP, and most of them used to provide parameter value.

Datasheet are digital circuit registers, most of them are just enable/disable, or choices. 

1) if don't do open threshold and short threshold setting, will the dsp use the default value?

2) why don't use the register 0xD0 to enable real time diagnostic? from the datasheet of TVS6754-Q1, register 0xD0 is the one to be used to enable real time diagnostic. 

Hi Jianpeng

Jianpeng Zhou said:

1) if don't do open threshold and short threshold setting, will the dsp use the default value?

Default value is not correct, and not guaranteed. 

Jianpeng Zhou said:

2) why don't use the register 0xD0 to enable real time diagnostic? from the datasheet of TVS6754-Q1, register 0xD0 is the one to be used to enable real time diagnostic. 

0xD0? I can't find this register in the datasheet. 

If you don't have the newest version, please follow below link to download.

https://www.ti.com/secureresources/TAS6754-Q1-DESIGN