SBOU312 august 2023 ISOTMP35 , ISOTMP35-Q1
The ISOTMP35BEVM includes LEDs to indicate the board status; the green LED D3 illuminates when voltage is supplied to the 3.3V net. The 3.3V net is connected directly to pin 1 of the ISOTMP35. U1 is the onboard regulator which supplied the 3.3V net, and is enabled and disabled by switch S1. For normal operation of the EVM, S1 must be enabled. When S1 is disabled, the green LED D3 turns off.
The red LED D4 is the MSP430F5528 status LED. Table 3-1 shows what the different modes of operation mean.
D4 LED STATUS | MEANING |
---|---|
Off | EVM is connected to EVM GUI |
Blinking in 4 blink burst | EVM is plugged into PC, not connected to EVM GUI |
Steady blinking | Connected to USB power |