LP87745-Q1: Do we have ref code for configuring the LP877451A1RXVRQ1?

Andrew Su

Part Number: LP87745-Q1
Other Parts Discussed in Thread: LP87745, AWR6843

Tool/software:

Dears,

My key customer is using LP877451A1RXVRQ1 to power AWR6843, but AWR6843 may be reset by LP87745's watchdog repeatedly. Do we have ref code for configuring the LP877451A1RXVRQ1? especially the watchdog. Is there a method to turn off the watchdog function?

thnaks!

6 months ago

0 Ishtiaque Panhwar 6 months ago

TI__Genius 16290 points

Hi,

Watchdog can be disabled by setting WD_EN=0 during the 5 seconds of start up time period.

After the 5 seconds have passed then you need to bring the WD in long window and then disable the watchdog by writing following register bits.

WD_RETURN_LONGWIN = 1

WD_PWRHOLD = 1

WD_EN=0

And WD ref cod example has been sent to you via email.

Regards,

Ishtiaque

+1 Andrew Su 6 months ago in reply to Ishtiaque Panhwar

TI__Intellectual 1585 points

dear Ishtiaque,

i have got the email. thanks a lot!

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LP87745-Q1: Do we have ref code for configuring the LP877451A1RXVRQ1?