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Question & Answer
Classification:
Date: Sep 12, 2000
Problems with power-up reset of the 8031 on the XS Board
Q:
What is a good way to reset the 8031 uC after powering up the XS95 board?
A:
- Connect the uC reset to one of the data pins of the parallel port through the CPLD. Then use XSPORT to strobe the uC reset.
- If you have the board plugged into a breadboard, then you can use a resistor-capacitor to hold the reset line high for a period of time after power arrives.
- You could build a counter that initializes to zero on power-up and then releases the uC reset when it counts to N. (This may use more macrocells in the XC95108 than you want).