Tool/software:
Hi, dear,
I have now built a regulator with an input voltage of 12V and an output voltage of 10V using TPS55289.
I tried I2C communication to set the 10V output, but the NACK signal kept getting feedback.
I want to know why.
best regards.
Dear, Bryce Xun,
I measured the place you mentioned again.
It still outputs NACK.
1. EN/UVLO (PIN 1) measured at 3.3 V.
2. VCC (PIN 18) is measured at 5.27 V.
3. Address waveform :0x75
jaehyung kim,
Dear, Bryce Xun,
Problem solved.
I didn't know I had to shift 1bit to the left.
Thanks alot.
jaehyung kim,
