Power LED brightness misleading?

[Frosty-J]

Following discussions on Discord, it looks like the power LED is always lit, rather than having the 256 brightness levels I had inferred from this table.

[m00dawg]

This appears to be correct. In testing it via:

  ; Turn off activity LED
  LDX #$42 ; System Management Controller
  LDY #$05 ; Activity LED
  LDA #$00 ; Turn off
  JSR i2c_write_byte ; Turn off LED
; Turn off Power LED
  LDX #$42 ; System Management Controller
  LDY #$04 ; Power LED
  LDA #$00 ; Turn off
  JSR i2c_write_byte ; Turn off LED

Activity light goes off but the power led does not, at least on X16 Dev.

[Frosty-J]

Fixed in #172 but leaving this open since it seems the activity LED may only be on/off rather than having brightness control.