Use of enable on intelligent LED displays. Answered
I've found some early intelligent LED displays (datasheet here, I have confirmed I have the decimal-only variant) and have been trying to load digits onto them using the enable input. Currently, they will display whatever value is applied to the input pins when power is applied, but changing the value requires interrupting power to the display so it restarts with the new value.
When enable is pulled to 0V, the display turns off and will not turn back on until enable has been released and the display has been restarted. The rise time of the power supply seems to be important in whether the display will start properly, as the display will usually not start without at least a10uF capacitor on the power supply. Also, the decimal point is non functional.
How do I get the decimal point and the enable input to work so that I don't have to switch the whole display on and off?
Thanks in advance for any ideas.