Spin Semiconductor

No problem. I understand. It's been one of those weeks for me too. There are plenty of other pieces of code to work on in the mean time. Next task is to rig together an I2C interface to burn EEPROMs and test out the potential "cho rdal,rptr2" instruction. If I find anything useful, I'll po...

No worries on the tiny delay. It's fantastic to amazing that the designers are available so readily. I figured out the format the assembler is using for operand 4 (which seems to be 'inert' in the coded instruction) but am still looking for analogs of CHO RDAL. I know CHO RDAL, COSx was added as a r...

OK, now I see that the 4th operand is assembled as a 15 bit address from a positive fraction. Negative values are treated as 1-value.

I'm having some trouble with the CHO SOF instruction. The format of the instruction is inconsistent. The knowledge base section of the Spin Web site lists the format as: cho sof,rmp1,na ;multiply ACC value by ramp1 crossfade value If you enter that into the assembler it will complain with: <0000>[ P...

No cap on pin 9, there's some flux from the X2 connections touching the DVDD supply and GND, and I'm in a marine environment. That seems a much more likely cause than Elvis.

Thank you, Frank. I will mail you directly if I see the behavior again.

Your test code operates perfectly here. :? I know something was happening... thinking more about it, the Dev board was power cycled but the PC only gets restarted every few days so I'm wondering if something may have confused some XP assembler support DLL. I've also seen some odd behavior if my fing...

I apologize for not taking a snapshot of things while they were failing. The assembler's trait of saving the current file in the editor for assembly makes it less easy to keep copies of older iterations. Until I can do better, here is the snippet where I experienced the failure twice. The first time...

Because of the lack of a " skp greater_than_zero " or a " skp not_zero " test condition, I've used a work-around that utilizes " skp run " as a pseudo-branch in a few pieces of code. Twice now I've had code where the skip was not being taken at runtime after the first p...

I need to get the RPTR2 version of RMPx in the accumulator. I see in the assembler documentation that the CHO RDAL,COSx instructions were added in a revision. Thinking of that and looking at the hex dump from the assembler it appears the CHO RDAL instruction might have the same control flags availab...

Thanks!

Frank & Keith, Congratulations and thank you for such a great chip. I have written dozens of pieces of code and look forward to some commercial offerings around the FV-1 soon. I feel like the FV-1 is the first DSP I could really dig into with complete ease. My questions have to do with LFO setup...