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Propeller Start-Up Time — Parallax Forums

Propeller Start-Up Time

william chanwilliam chan Posts: 1,326
edited 2006-12-02 18:27 in Propeller 1
Seems like the Propeller always takes about 1.5 seconds to start up.
The official reason for this is that it has to copy the program from the EEPROM to the RAM before it starts.

The funny thing is, it doesn't matter that the program size is 2K or 30K, it always takes 1.5 seconds to start up.
If it takes 1.5 secs to copy 32K at 400Khz, how many seconds will it take to copy 128K in Propeller V2?
I hope the answer is not 6 seconds... rolleyes.gif

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Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2006-12-02 18:27
    The built-in bootloader copies the entire 32K from EEPROM to RAM. It does the same thing (RAM to EEPROM) when the Propeller Tool asks it to copy the program to EEPROM. There will have to be major changes to the Propeller Tool and other programming tools between now and a finished Propeller V2 and, among the changes, will need to be a more sophisticated handling of the initial loading of the chip. I suspect that only the amount needed to run the initial program will be loaded and other stuff will be loaded as needed.
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