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by joanlo
Thu Apr 14, 2016 9:05 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C RTC wipe/corruption on new kernel boot?
Replies: 44
Views: 19965

Re: I2C RTC wipe/corruption on new kernel boot?

Hi dears
I have the same problem. When I do a "shutdown -h now", the RTC hwclock becomes corrupted. If I unplug/plug the power adapter directly It keep the time.
I tried a RPI2 and a RPI3 with the last Jessie update and upgrade and fake hwclock removed and two diferents RTC
Best regards.
by joanlo
Tue Mar 15, 2016 11:42 am
Forum: Advanced users
Topic: Under-voltage warnings
Replies: 209
Views: 390972

Re: Under-voltage warnings

Dear
How can I read the under voltage status or level warning?. I want to read this to shutdown the RP when it apperars.
Best regards.
by joanlo
Wed Nov 04, 2015 7:03 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: How to read I2S audio input
Replies: 2
Views: 6843

Re: How to read I2S audio input

https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=91237 You have to compile a kernel module - I wonder why this is not in included in the raspberry pi linux or is it now ? Hi Carla I have followed your indications and works fine. Linux arecord command works ok but in Qt, audioinput not de...
by joanlo
Wed Oct 21, 2015 8:42 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: How to read I2S audio input
Replies: 2
Views: 6843

How to read I2S audio input

Hi
I plan to connect an ADC to RPI through the I2S port. I need to read the audio input from I2S to do a audio capture.
I have the Raspberry PI 2 B with Raspbian Jessie.

What steps I have to do to read the digital audio from the I2S port.

Thanks in advance.

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