This diagnostic implementation was tested when the TMAG5328 OUT pin was shorted to GND and shorted to VCC. When the TMAG5328 OUT pin was shorted to GND, the OUT pin stayed low, as shown in Figure 4-10. Shorting the TMAG5328 OUT pin to VCC caused the OUT pin to stay high, as shown in Figure 4-11. For both signal shorts, a square wave was no longer available on the TMAG5328 OUT pin, so the EVM’s microcontroller was able to log these events as faults.

Figure 4-10 Logic Analyzer Screenshot of TMAG5328 OUT Pin When it is Shorted to GND.

Figure 4-11 Logic Analyzer Screenshot of TMAG5328 OUT Pin When it is Shorted to VCC.