AWR2944: How to Set TJA1463AT into Sleep Mode

a a

Part Number: AWR2944
Other Parts Discussed in Thread: LP87745-Q1

Tool/software:

By consulting the datasheet of TJA1463AT, it is necessary to pull STB_N low while keeping EN high to put it into standby mode. By setting the NINT polarity value to 0x3D through AWR2944, the radar will immediately reboot and cycle through a 70-second reboot process. The reboot reason is SDL_WarmResetCause_POWER_ON_RESET(PS: No reboot command was sent in the code, and the watchdog was disabled.). After approximately 20 minutes of rebooting, the radar will power down. May I ask how to correctly set the INT pin output of LP87745-Q1 to low level through AWR2944? And how to put the radar into sleep mode?

Thank you!

9 months ago

0 E. Shareef 8 months ago

TI__Genius 16660 points

Hello Jesse,

I am looking into your request and will respond shortly.

Thanks,

E. Shareef

0 a a 8 months ago in reply to E. Shareef

Prodigy 50 points

Is there any progress?

0 a a 8 months ago in reply to E. Shareef

Prodigy 50 points

Regarding the issue of the radar rebooting after configuring the PMIC, preliminary localization indicates that the HWA is resetting the 2944LC. Why the HWA would reset the 2944LC?

How can I disable the HWA? Can I use the HWA_close() function? However, it did not take effect in actual testing.

Thank you for taking the time to answer.

0 E. Shareef 8 months ago in reply to a a

TI__Genius 16660 points

I am looping in a software colleague who should be able to answer here.

E. Shareef

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AWR2944: How to Set TJA1463AT into Sleep Mode