Texas Instruments TMS320C3x 사용자 설명서
TMS320C31 Boot Loader
11-13
Using the TMS320C31 and TMS320C32 Boot Loaders
11.1.6 TMS320C31 Boot-Loader Precautions
The boot loader builds a one-word-deep stack, starting at location 809801h.
Avoid loading code at location 809801h.
The interrupt flags are not reset by the boot-loader function. If pending interrupts
are to be avoided when interrupts are enabled, clear the IF register before
enabling interrupts.
are to be avoided when interrupts are enabled, clear the IF register before
enabling interrupts.
The MCBL/MP pin must remain high during the entire boot-loader execution,
but it can be changed subsequently at any time. The ’C31 does not need to
be reset after the MCBL/MP pin is changed. During the change, the ’C31 must
not access addresses 0h–FFFh. The memory space 0h–FFFh will be mapped
to external memory three clock cycles after changing the MCBL/MP pin.
but it can be changed subsequently at any time. The ’C31 does not need to
be reset after the MCBL/MP pin is changed. During the change, the ’C31 must
not access addresses 0h–FFFh. The memory space 0h–FFFh will be mapped
to external memory three clock cycles after changing the MCBL/MP pin.