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Showing results for tags '#lpm #energytrace'.
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I am currently working on a low power application. Using the MSP-EXP430FR5969 and the energytrace functionality in CSS I'm finally able to monitor the power usage of my sketch. (thanks for the writeup Frank!). I notice that if I call the following function my MSPG2553 is unable to suspend. // returns VCC in millivolts int getVCC() { // start with the 1.5V internal reference analogReference(INTERNAL1V5); int data = analogRead(ANALOG_HALFVCC_INPUT); // if overflow, VCC is > 3V, switch to the 2.5V reference if (data==0x3ff) { analogReference(INTERNAL2V5); data = (int)map(analogRead(ANALOG_HALFVCC_INPUT), 0, 1023, 0, 5000); } else { data = (int)map(data, 0, 1023, 0, 3000); } return data; } Can anybody tell me why this happens? The complete sketch is in the attachment. It is a wireless sensor that tells me when the mailman delivered the mail. mailboxsensor_v6-1.ino
