In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote: Well I figured out the Ghosting problem. It says in the RGB backpack should not exceed 125 KHz. [code] SPI Timings: A delay of 0.5ms is recommended between the assertion of CS and the start of data transfer, as well as after the end of data transfer and the negation of CS. [b]The SPI clock should not exceed 125kHz.[/b] I set the DEVICE and FREQ as below: [/code] DEVICE SX28, OSC128KHZ, TURBO, STACKX, OPTIONX FREQ 128_000 It certainly got rid of the ghosting but also brought about another problem. Now the scanning rate is so slow that it redraws too slow so that it is certainly not "smooth" at all - at least with my current program using 64 Bytes not 8 Bytes like Zoot said. What now? ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=225777#m227355 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)