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Wed Jun 28, 2017 6:51 pm
Forum: Compute Module
Topic: Pi CM3 eMMC bus width, SD1 boot?
Replies: 6
Views: 1617

Re: Pi CM3 eMMC bus width, SD1 boot?

Can you boot from an SD card using SD1 pins 34-39 in the first place?
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Wed May 17, 2017 11:15 pm
Forum: Compute Module
Topic: Hanging on "File read: start.elf" when flashing boot
Replies: 5
Views: 1515

Re: Hanging on "File read: start.elf" when flashing boot

See update in post 1. Fresh install of lite + full updates did end up working.
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Wed May 17, 2017 4:58 pm
Forum: Compute Module
Topic: Hanging on "File read: start.elf" when flashing boot
Replies: 5
Views: 1515

Re: Hanging on "File read: start.elf" when flashing boot

Tried a fresh install of raspbian lite on the host Pi and still no dice. Now I'm attempting to clone https://github.com/raspberrypi/firmware.git on the host Pi in order to take advantage of the -d flag to specify the directory with which to boot the device. I'm hoping there may be some sort of alter...
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Wed May 17, 2017 2:21 am
Forum: Compute Module
Topic: Hanging on "File read: start.elf" when flashing boot
Replies: 5
Views: 1515

Re: Hanging on "File read: start.elf" when flashing boot

I upgraded my host Pi to the latest raspbian with Pixel and attempted to do the same thing. It is still hanging at "File read: start.elf" and the green ACT light went off on the CMIO, but this time I guess I'll let it run overnight. [EDIT] Did not work after waiting overnight. An edit in the first p...
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Tue May 16, 2017 9:54 pm
Forum: Compute Module
Topic: Hanging on "File read: start.elf" when flashing boot
Replies: 5
Views: 1515

Hanging on "File read: start.elf" when flashing boot

I am following the instructions here: https://www.raspberrypi.org/documentation/hardware/computemodule/cm-emmc-flashing.md and am following the instructions in "BUILDING RPIBOOT ON YOUR HOST SYSTEM (CYGWIN/LINUX)" but as soon as I run sudo ./rpiboot on my host Pi it says "File read: start.elf" the g...
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Fri May 05, 2017 5:20 pm
Forum: Compute Module
Topic: Pull downs on GPIO 28,29 if I2S?
Replies: 2
Views: 697

Pull downs on GPIO 28,29 if I2S?

Hi there, I'm using GPIO 28 and 29 for their i2s PCM_CLK and _FS functions. The datasheet specifies these should be pulled down, but I'm wondering if that's still the case if I'm using them for this particular ALT function.
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Fri Apr 28, 2017 1:26 am
Forum: Compute Module
Topic: Soldering under the CM3
Replies: 4
Views: 1307

Soldering under the CM3

Is it advisable to have solder holes beneath where the CM3 is mounted? For example, I want to solder some wires to some holes on the space below the module so that I don't waste all that space. http://imgur.com/HGrNmBc I'm using a 1473149 SODIMM connector which states the module height (the center o...
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Thu Apr 27, 2017 1:50 pm
Forum: Compute Module
Topic: CM3L SD Card
Replies: 1
Views: 629

CM3L SD Card

With the CM3L I started using GPIO22-27 to connect to SC cards but then I realized those are SDO ALT1 pins.

Am I correct in guessing that SDX_CLK/CMD/DAT0-3 are what I route to my SD Card?

Are the SDX pins the default pins to connect to SD cards in the device tree?

Do I need any pullups?
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Tue Apr 04, 2017 4:20 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: STICKY: Optional interfaces (I2C, I2S, SPI) and Device Tree
Replies: 128
Views: 134329

Re: Optional interfaces (I2C, I2S, SPI) and Device Tree

I'm sorry, but that isn't possible. If you download the BCM2835 ARM Peripherals documentation from here and turn to pages 102-103 you will see a map of the alternate functions available on each GPIO pin. The I2S functions are labelled as PCM, and appear in two groups - 18-21 and 28-31. Later Models...
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Sun Mar 26, 2017 4:27 am
Forum: General discussion
Topic: Raspberry Pi Zero Eagle Footprint / LBR
Replies: 6
Views: 9594

Re: Raspberry Pi Zero Eagle Footprint / LBR

I'm opening these up in Eagle 8.1.0 and notice that when I place the schematic in my schematic the board doesn't show up on my board linked to it. Is this a version issue for Eagle 8.1.0, am I using the lib wrong, or were they ever hooked up like that?
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Mon May 09, 2016 1:14 pm
Forum: Camera board
Topic: Pi NO IR Camera for plants
Replies: 16
Views: 4862

Re: Pi NO IR Camera for plants

Let's figure out then! I have hydroponic gardens I want to monitor. And my dad is a farmer. I want to send up drones to check his fields.
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Mon May 09, 2016 4:15 am
Forum: Camera board
Topic: Pi NO IR Camera for plants
Replies: 16
Views: 4862

Re: Pi NO IR Camera for plants

Thanks for the extra info. It looks like I need to understand more fundamental aspects of what I'm trying to do. I was thinking this was more mainstream and there was an easy process or step by step for the noir cam to do this
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Mon May 09, 2016 1:44 am
Forum: Camera board
Topic: Pi NO IR Camera for plants
Replies: 16
Views: 4862

Re: Pi NO IR Camera for plants

I appreciate your info! So capture using raspistillyuv (with or without the red or blue filter?) Then do processing in mathmatica? What kind of processing is necessary? I don't really understand how to pull out the colors so that the healthy parts are one color and the less healthy are another. Also...
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Sat May 07, 2016 9:20 pm
Forum: Beginners
Topic: Reliable A2DP Sink RPI3 BT?
Replies: 4
Views: 2225

Re: Reliable A2DP Sink RPI3 BT?

I'm interested to know if this will work with the on-board bluetooth after some firmware update as well. Seems silly to have a bluetooth dongle when the pi3 is supposed to have bluetooth support built in!
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Sat May 07, 2016 4:43 pm
Forum: Camera board
Topic: Pi NO IR Camera for plants
Replies: 16
Views: 4862

Re: Pi NO IR Camera for plants

Hi there. I'm trying to do the same but I'm not sure how to use the Infragram analyzer. I either don't know how to read the image output, or use the tool. I put the blue filter in front of my Pi NoIR cam when I took the picture. http://imgur.com/a/Drf1n You can see Grey, HVS, and original at the lin...
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Tue May 03, 2016 7:58 pm
Forum: Camera board
Topic: Slo-mo capabilities on the v2 camera
Replies: 1
Views: 506

Slo-mo capabilities on the v2 camera

I read a post about slow motion for the old cameras but I'm wondering if the capabilities or fps is able to increase now on the v2 camera models.

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