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LM4F Launchpad to 5V HT1632C with pull up resistors

Paul Haddad
Prodigy 120 points

Hi All,

I'm trying to interface the Launchpad to a Holtek HT1632C (http://www.holtek.com/pdf/consumer/ht1632cv120.pdf) board being powered at 5V. All the important pins on the chip have 5V Pull up resistors on it and I was wondering what the suggested way to interface with this board is?

After many tries I got it to work by setting the Launchpad's pins to Output and writing a 0 to them. I then use GPI_O_DEN to toggle the lines between 0 and 1 as needed. Seems to work fine and I really have no problems with it, but just curious if there's a more correct way to do this.

Thanks!