Higher grade chips will run up to 294Mhz (I've seen engines running at 320Mhz). At the same time, I think you can use only 15 engines per chip.
Interesting, I'm not sure how the firmware clocks the chips exactly. There's this portion in the header file:
//#define __OPERATING_FREQUENCY_16MHz__
//#define __OPERATING_FREQUENCY_32MHz__
//#define __OPERATING_FREQUENCY_48MHz__
#define __OPERATING_FREQUENCY_64MHz__
...
ifdef __OPERATING_FREQUENCY_64MHz__
#define NOP_OPERATION asm volatile ("nop \n\t nop \n\t nop \n\t nop \n\t nop \n\t");
#elif defined(__OPERATING_FREQUENCY_48MHz__)
#define NOP_OPERATION asm volatile ("nop \n\t nop \n\t nop \n\t nop \n\t");
#else
#define NOP_OPERATION asm volatile ("nop \n\t nop \n\t nop \n\t nop \n\t");
Does 64Mhz relate to the chip or engine frequency or something else? If it does relate to chip speed, what does "nop \n\t nop \n\t nop \n\t nop \n\t nop \n\t" mean or refer to? I have a fairly limited background in programming and I'm not intimately familiar with the board design or exactly how jobs get distributed and calculated across chips and engines.
