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propreller Boot loader — Parallax Forums

propreller Boot loader

sanketsanket Posts: 28
edited 2009-09-21 20:02 in Propeller 1
Hello every one.
I have a question about the boot loader program.

From where the boot loader programs comes from is it comes from outside environment? and does it stores the program on the HUB memory or in cog memory? if so then what if power turns off? do we need to reload the program after power goes off?

Comments

  • ericballericball Posts: 774
    edited 2009-09-21 20:02
    The Propeller boot loader is stored in on-chip ROM (along with the SPIN interpreter). See the datasheet for more details on the boot process.

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  • Mike GreenMike Green Posts: 23,101
    edited 2009-09-21 20:02
    There is a description of the boot process on page 18 of the Propeller Manual.

    The boot loader program is stored in the Propeller chip's ROM. It stores the program received from an attached PC into HUB memory or copies a program found in an attached standard 32K byte EEPROM to HUB memory. If the power goes off, the Propeller's memory gets erased and the boot loader is executed again (from ROM) when the power is restored.
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