Tool/software:
Hello, I have a custom design with MSP430FR5043 as shown in the schematics. I disconnected all I/Os going to LEDs, Buzzers, etc. I measure the power consumption with the OTII device and I get very strange peaks of 500 uA with 13 peaks per second while the power consumption for the rest is reasonable 10...15 uA. is there anything wrong with the power supply or does the strange 13 HZ signal on the 3.3V rail ring a bell?
Some more info:
- I see the very same result when keeping the MSP in reset state ( /RST -> LOW and when using the recommended firmware below
int main(void) {
WDTCTL = WDTPW | WDTHOLD;
P1DIR = 0xFF; P2DIR = 0xFF; P3DIR = 0xFF;
P1OUT = 0x00; P2OUT = 0x00; P3OUT = 0x00;
__bis_SR_register(LPM3_bits | GIE);
__no_operation();
return 0; }
- I did not connect the two transducers yet but shot cutting there inputs does not change the result.
Thank you for any hint. I am pretty much out of options.
Christian