Zhaohong,
Sorry, Iquestion again.
I equally modified software interrupts in both of the bootloader and the application. And I tested to update the application using the bootloader. As a result, the I/O control using polling is OK, but interrupt is not happened. (Actually, it didn't work for I/O control using polling before this modifying.). And I attached my bootloader and application. Please check my error or fault.
-- File Description--
The bootloader is based on “Hercules_Bootloader_v1.0.0” of “http://processors.wiki.ti.com/index.php/RM48_HDK_Kit”.
Application is based on the “RM48 Hercules Demo” of the “spnc034.zip”. And I modified “link cmd” and “sys_startup.c”.
(Please visit the site to view this file)
Thank you.