fixed_bor_setup
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fixed_bor_setup [2006/02/06 22:37] – created smashtv | fixed_bor_setup [2006/02/06 22:46] – smashtv | ||
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- | LCD Message "fixed BOR setup" | ||
- | * **//From the forum://** | ||
- | The BOR feature is a brown-out reset, which resets the core if Vdd is too low. | ||
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- | * **//From the Change Log:// | ||
- | The "Brown Out Reset" (BOR) settings in the configuration sector are changed automatically when MIOS detects unproper settings - the appr. cell in this sector will be overwritten and the device will be reset. | ||
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- | New Setting: Brown Out Reset at 4.5V | ||
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- | This ensures that the PIC won't access devices during power-off which cannot operate at voltages < 4.5V (e.g. the BankStick, which could get an unintended write command) | ||
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- | * **//From the forum: //** | ||
- | The LCD message you saw notifies about the activation of the BOR flag, see documentation in the Change Log: http:// | ||
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- | So, what could happen: your PSU is too weak, or there is a short circuit somewhere, which drops the core | ||
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- | So - my tip - remove all 74HC595 chips and check if the reset still happens. The successively put them into the sockets again (switch-off the power when doing this!) in order to find out, which part of the DOUT chain is defective. \\ | ||
- | If this doesn' | ||
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- | Best Regards, Thorsten. |
fixed_bor_setup.txt · Last modified: 2006/10/15 09:35 by 127.0.0.1