Other Parts Discussed in Thread: TMP103,
Hi,
We constantly probe the temperature of the LED board, to compensate for temperature drift and to allow us to back-off if the device gets too hot.
The temperature is read indirectly through the 9221. Intermittently we see the temperature value stuck at 255 (even though the actual temperature is nowhere near that). This is problematic as this is a valid temperature (= -1C) and not a high one, so there is a potential that an LED board over-heat would not be detected.
Is this a known issue? How would you recommend I handle this.
Also, is the LED temperature read synchronously? I.e. is it read by the 9221 when I read the illumination temperature register or is it read e.g. only with every frame. This will determine how we support reading from multiple LED thermistors.
Thanks
- Oliver