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by mbmahan39
Wed Apr 22, 2015 9:20 pm
Forum: General discussion
Topic: [CLOSED] UHS/CL10 SD speed on Pi ?
Replies: 8
Views: 25296

Re: [CLOSED] UHS/CL10 SD speed on Pi ?

You know that for using the UHS on high speed (which is typically what UHS is for) your device needs to have UHS interface, right? If you are trying to use the UHS card with lets say a card reader that doesn't support UHS it will not give you the maximum speed. :geek:
by mbmahan39
Mon Apr 20, 2015 7:19 pm
Forum: C/C++
Topic: IDE for C++
Replies: 12
Views: 27157

Re: IDE for C++

Is a cross compile enough on visual studio? If yes Visual GDB is the best. It's a plugin for visual studio and it works perfectly and they have examples and tutorials also. :geek:
by mbmahan39
Wed Apr 15, 2015 6:28 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: SPI driver latency and a possible solution
Replies: 241
Views: 138962

Re: SPI driver latency and a possible solution

"msperl", thank you verymuch for the info! I'm currently just using the wiringpi which I believe is using spidev? When is this kernel coming out(4.1)? If you use spidev, then you might want to think about using the SPI-device directly from userspace, which avoids the context-switches and interrupt l...
by mbmahan39
Tue Apr 14, 2015 12:42 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Interface w/ RFM69W wireless module via SPI?
Replies: 21
Views: 23257

Re: Interface w/ RFM69W wireless module via SPI?

Okay, I got the RFM69HW working. I have an Arduino as a transmitter just sending a number from 0-9, every time it sends it increments it. And on the other side the raspberry pi is receiving it. If I slow the speed down and put 100ms delays between sending the data I don't loose any packets but if I ...
by mbmahan39
Tue Apr 14, 2015 12:28 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: SPI driver latency and a possible solution
Replies: 241
Views: 138962

Re: SPI driver latency and a possible solution

Hi, I'm trying to interface the raspberry pi compute module with RFM69HW radio module for transferring high speed data and I realized I have the same problem explained in this post. My kernel version is 3.18.5+. My questions are: 1-how much is the maximum speed we can run the original SPI driver wit...

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