RE: MAX32660 Evaluation Kit - part 2: Mod the PCB for Power Measurement

DAB — Fri, 14 Dec 2018 21:14:13 GMT

Good update Jan.

DAB

RE: MAX32660 Evaluation Kit - part 2: Mod the PCB for Power Measurement

Jan Cumps — Fri, 14 Dec 2018 20:06:04 GMT

First measurements, using two different multimeters, 1.8 V

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=text&text=Running+in+ACTIVE+mode+++++++++++++++++++++++++6.72+mA%0AAll+unused+RAMs+placed+in+LIGHT+SLEEP+mode+++++6.72+mA%0AAll+unused+RAMs+shutdown+++++++++++++++++++++++6.71+mA%0AEntering+SLEEP+mode++++++++++++++++++++++++++++2.73+mA%0AEntering+DEEPSLEEP+mode++++++++++++++++++++++++3.57+mA%0AEntering+BACKUP+mode+++++++++++++++++++++++++++0.21+mA]

For some reason, DEEPSLEEP seems to pull more current then SLEEP.

This is measured without debugger, and with enabeling USB/UART0 clock.

It would be interesting to see other tester's measurements.

With 3.3 V supply:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=text&text=7%2C57%0A7%2C56%0A7%2C55%0A3%2C48%0A5%2C21%0A0%2C74]

A trace of the current, switching between modes every 5 seconds, with 1.8 V

[View:/resized-image/__size/660x287/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-c8482e3c-8e87-4144-9344-ff6b39880205/contentimage_5F00_189767.png:660:287]