S-Record Generation - Motorola 56F800 User Manual

Hybrid controller

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Table Of Contents

Table of Contents

Bootloader

•

Application COP vector - To use COP interrupt vector in an application loaded via

Bootloader, the entry point for the COP ISR must be located at address 0x0082 in Program

memory

•

Application start delay variable must be set at address 0x0085 in Program Flash

•

Restricted resources use - The application cannot occupy Reset and COP interrupt

vectors, and cannot place code into Boot Flash memory area. There is no way to place any

initialized variable from the application into internal data RAM while loading. This

memory area is used by Bootloader. All data from the S-Record file that address to the

restricted area will be ignored. External Program memory is unavailable while loading the

application because the Bootloader is performed in DSP Mode 0A memory map.

The Bootloader provides a configuration variable (BSP_BOOTLOADER_DELAY) can be

defined in the Bootloader's appconfig.h file that determines the application's start delay time-out.

Possible values of BSP_BOOTLOADER_DELAY:

Disable the Bootloader, start the application

immediately. After loading the application with this

setting, there are only two ways to re-enter Bootloader:

Set waiting time for the start of the S-Record file for

0 - 254

0-255 seconds before the start of a previously-loaded

application

Set waiting time to infinity. After reset, the Bootloader

255

waits for the S-Record file without counting down any

time-out

If there is no BSP_BOOTLOADER_DELAY set in the appconfig.h file, the default value for

time-out is 30 seconds.

1.1.7