Spin2 cog start/stop

Ariba

Spin2 has no cognew, it's all done with coginit.

instead of:
    cog := cognew(@PWM_Asm, @command)
use:
    cog := coginit(16, @PWM_Asm, @command)

16 means the first free cog is allocated, you can also start a specific cog if you use 0..7 instead of 16.

There are threads abut the difference between Spin1 and Spin2.

Publison

That's looking better!

jonabel1971

That helps alot. I suspected no cognew, but people were still posting code on this thread that uses cognew() - and the conversion table didn't really cover it.
I became confused.

I downloaded & read the 4 pages of Tricks, Traps & Differences thread, and some Conversion documentation from Rayman.
But as I mentioned - assembly language is difficult for me.

Thank you for the assistance.

jonabel1971

Question moved to a different thread.

Ariba

|< is the decode operator and is called DECOD now. But instead of DECOD, you can write:

Mask          long      1<<0, 1<<1, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6, 1<<7 
              long      1<<8, 1<<9, 1<<10, 1<<11, 1<<12, 1<<13
              ...

jonabel1971

Thanks, that let me compile properly.

jonabel1971

Since the internal clock is set at 20 Mhz, is there a way to use the external multiplier (320 Mhz) & pin I/O - to emulate a rudimentary ALU for faster calculations?