LPCXpresso IDEのトピックRe: LPC11C24 LPCXpresso Board stopped functioning

LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:06 GMT

Content originally posted in LPCWare by lab1 on Tue Apr 01 03:41:53 MST 2014
I worked with my development board (LPC11C24 LPCXpresso Board) and suddenly it stopped working.
I've made some measurements on the development board between pins 54 and 28, and I only measure 0.67V is there anyone who knows what might be wrong?

Re: LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:07 GMT

Content originally posted in LPCWare by LabRat on Tue Apr 01 04:03:35 MST 2014

Quote: lab1
...between pins 54 and 28, and I only measure 0.67V is there anyone who knows what might be wrong?

Are we talking about J6?

If so, LPC11C24 isn't working with 0.67V :)

Re: LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:08 GMT

Content originally posted in LPCWare by lab1 on Tue Apr 01 04:53:04 MST 2014
No. I'm talking about J6-28 and J6-54 LPCXpressoLPC11C24revB page 6
I decided also to measure Power Supply Party of LPC3154 page 2, and I have measured 0V R1, 0.59V R2 and 0V R3.
Does anyone have an explanation for this?
The error occurred right after I had started a debugging of a new project.

Re: LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:08 GMT

Content originally posted in LPCWare by LabRat on Tue Apr 01 05:11:17 MST 2014
Could be useful to:

- check D1-D3

- supply your target with 3.3V (J6-28)

- supply LPCXpresso with 5V at VIN (J6-2)

Re: LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:09 GMT

Content originally posted in LPCWare by lab1 on Tue Apr 01 05:54:15 MST 2014
I make some measurements, and I get 5V on one side of D2 and 0.59 V on the other side of the diode.

Re: LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:09 GMT

Content originally posted in LPCWare by lpcxpresso-support on Tue Apr 01 06:02:38 MST 2014
Please explain what has "stopped working". Measuring voltages is not very helpful when we don't even know what the problem is.

Re: LPC11C24 LPCXpresso Board stopped functioning

lpcware — Thu, 16 Jun 2016 01:58:10 GMT

Content originally posted in LPCWare by LabRat on Tue Apr 01 06:04:35 MST 2014

Quote: lab1
I make some measurements, and I get 5V on one side of D2 and 0.59 V on the other side of the diode.

And do you think 5V-0.59V = 4.41V is the correct VF for a Schottky??

http://www.nxp.com/documents/data_sheet/PMEGXX05EH_EJ_SER.pdf