30 PWM outputs on one chip?

[Ingvar]

I would say that 60Hz would be too low when using this type of PWM, i don't know about MIBAM since i've never used it. Using old(normal) style PWM you will see flickering when using low dutycycles, the problem is that the pauses between the pulses of light is long enough for the eye to see(atleast for my eyes, this varies for different people). I've done a pwm controller once and found that i still had visible flicker at 100Hz when using dutycycles below 2-3%. At 200Hz the problem went away. Thinking about it, i would suspect that MIBAM would have the same problem, atleast at 1 LSB dutycycle.

[Kamikaze47]

Thanks Ingvar - You are right, I found that 60Hz was too low.

I tried DT's MIBAM but for some reason it kept crashing the compiler. So I ended up implementing MIBAM myself at 90Hz (including the mirror image, so equivalent to 180Hz standard BAM) and am quite happy with the result. 30 outputs, 8-bit resolution running on an 18F4550 @ 48MHz.