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TLC59582: Questions regarding Registers and overall behaviour

Part Number: TLC59582
Other Parts Discussed in Thread: TLC59581, TLC5957, TLC5958

Hello, I'm currently working on a board bring up with a single TLC59582, controlled by a MCU.

I have multiple issues, some of them really strange. I have based my code on the example provided here:

The first thing is, that the parts I had ordered from digikey were labeled "test spin from TLC59581", which is weird because I had thought the TLC59582 was a finalised product. Also, this was not mentioned on DigiKey or TI's website.

I managed to get it running, but the PWM output seem to be the inversion of the GS data I am sending.

Furthermore, I have no access to the FC1 and FC2 registers. Because of that, I can only use x1 Multiplexing mode. (Which is ok in my application).

I also cannot adjust the current gain, so the whole panel is way too dim.

I'd guess my lack of access to these registers is timing related, but I have checked it multiple times. I have just ordered a MSP432 launchpad to be able to inspect the precise timing of your example code. 

I am now wondering why the TLC59582 even exists, if there is no pricing advantage to the TLC59581. I had chosen it because I only needed x16 multiplexing.

I would love to hear your opinion on these issues, I hope its not something obvious that I am missing.

Best Regards