I'm wanting to use several TLC5940 chips to control a bunch of LED's. I found a great video online, but I am a bit confused about how to connect the DCPRG pin on the TLC5940 High.
I'm using the script from the video on YouTube by Kevin Darrah (Youtube, 28:08) as a starting point. At 28:08 he mentions the DCPRG pin on the TLC5940 and says that he connects it High "directly to the registers."
When I reference the data sheet for the chip (TLC5940, 7) it says, "When DCPRG=H, DC is connected to the DC register." Now, I'm pretty sure that indicates that this pin should always be on through a digital pin; however, Mr Darrah never defines a digital pin for the DCPRG pin to be connected to and doesn't set the output for it HIGH anywhere in his script. Ive also checked the Arduino's website information on the TLC5940 (Arduino, ) and it says, "DCPRG: this selects the source of the current limiter register, you could just tie it high."
Can anyone tell me what the DC Register is and how I can tie a pin High without defining it in the script?
My thought on how Mr Darrah was able to connect the DCPRG pin high without defining it in his script has to do with the fact that his circuit is because his Arduino is set up in a "stand alone configuration" with all of the "parts put on a breadboard." Unfortunately he doesn't provide a schematic for his circuit for me to reference.
Thank You for any input, NoisyBear