AM6422: How to relocate the Exception Vector Table in the MCU R5

zhou yangyang

Part Number: AM6422
Other Parts Discussed in Thread: AM6442

In the AM6442 MCU's R5 core, how can an application relocate the Exception Vector Table, for example, placing the vector table in MSRAM? Or is it possible to modify this vector table, considering that the linker script specifies the vector table address must be 0x00.

1 个月前

0 Daniel 1 个月前

TI__Mastermind 36015 points

您好

已经收到了您的案例，调查需要些时间，感谢您的耐心等待

0 Daniel 1 个月前

TI__Mastermind 36015 points

您好

Why does the customer want to change the location of the Vector Table ?

The Vector table should always be 0x00 and this table is stored in the TCM memory and not in the MSRAM memory.

0x00 Memory belongs to TCM.

0 zhou yangyang 1 个月前回复 Daniel

Prodigy 10 points

Okay, thank you so much!
Now I have a question. The exception vector table of SBL (Secondary Boot Loader) is linked at the address 0x70000000 in MSRAM. When an interrupt occurs in SBL, does it go to 0x70000000 to look for the interrupt vector table? If so, how is the mapping of this vector table handled?