MPC5777M Boot Assist ROM problem

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

MPC5777M Boot Assist ROM problem

295 Views
underdangerous
Contributor II

I would like to know if there are pin configurations related to the startup mode in the BAR of MPC5777M, such as the level of a certain pin or several pins that affect the value of the PC register after the system is powered on, or to put it another way, I have seen a large number of read operations related to PGDPO and PGPDI in the BAR through disassembly. I am not sure what their functions are and whether they are related to the system before jumping to BAF execution, Will the system choose the address for executing code based on the high and low levels of these pins? Thank you.

0 Kudos
1 Reply

253 Views
petervlna
NXP TechSupport
NXP TechSupport

Hello,

I have seen a large number of read operations related to PGDPO and PGPDI in the BAR through disassembly

It hard to comment as BAR content is not known to me, nor to customers.

Will the system choose the address for executing code based on the high and low levels of these pins?

No.

Best regards,

Peter

 

 

 

0 Kudos