SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The wait mode puts the CPU in a loop in the boot ROM code and does not branch to the user application code. The device can enter the wait boot mode either through manually being set or because of some issue during boot up. Using the wait boot mode is recommended when using a debugger to avoid any JTAG issues. There is an ESTOP provided for debugging during Wait boot.
Option | BOOTDEFx Value | Watchdog Status | Package Supported |
---|---|---|---|
0 (default) | 0x04 | Enabled | All |
1 | 0x24 | Disabled | All |
During boot ROM execution, there are situations where the CPU can enter a wait loop in the code. This state can occur for a variety of reasons. Table 4-25 details the address ranges that the CPU PC register value falls between, if the CPU has entered one of these instances.
Following are the actions for entering wait boot mode:
Address Range | Description |
---|---|
0x003F B714–0x003F B717 | In Wait Boot mode |
0x003F D3FB–0x003F D403 | In SCI Boot waiting on autobaud lock |
0x003F FD73–0x003F FE4A | In NMI Handler |
0x003F FE4B–0x003F FE78 | In ITRAP ISR |
0x003F CC6F–0x003F CC73 0x003F CB54–0x003F CB6B |
In Parallel Boot waiting for control signal |