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by InsertTitle
Mon Nov 26, 2018 12:45 pm
Forum: Compute Module
Topic: USB Type C: Do I need to do anything different for USB_OTG?
Replies: 3
Views: 2931

Re: USB Type C: Do I need to do anything different for USB_OTG?

Ended up doing myself, but I think I've got it right will find out when comes assembly. I connected both cc pins together and connected them to the USB_OTGID pin on the compute module, then just followed simple route of connecting Vbus together and GND together. I had no need for D+ / D- as far as I...
by InsertTitle
Tue Nov 06, 2018 4:04 pm
Forum: Compute Module
Topic: USB Type C: Do I need to do anything different for USB_OTG?
Replies: 3
Views: 2931

USB Type C: Do I need to do anything different for USB_OTG?

Question has been probably asked before but just want to check for my sake. Currently replacing the USB Micro AB receptacle connector on my carrier board (Houses my CM3) for a USB Type C connector, do I need to change anything for USB_OTG to work on the new connector? I know that on USB micro I had ...
by InsertTitle
Sun Sep 23, 2018 7:48 pm
Forum: Compute Module
Topic: Carrier Board RPI CM3 USB_OTGID help?
Replies: 6
Views: 1358

Re: Carrier Board RPI CM3 USB_OTGID help?

If you're happy with software solution then you can ignore the OTG_ID pin completely and just add dr_mode=peripheral to the dtoverlay line dtoverlay=dwc2,dr_mode=peripheral Otherwise if you want to be able to use the special host cable in the uUSB plug so you can use OTG to switch between host and ...
by InsertTitle
Fri Sep 21, 2018 9:30 am
Forum: Compute Module
Topic: Carrier Board RPI CM3 USB_OTGID help?
Replies: 6
Views: 1358

Carrier Board RPI CM3 USB_OTGID help?

Been trawling through the forums to find out how I can get USB_OTGID working so I can access the terminal over PuTTY on a carrier board design for the CM3. I have the understanding that you need to connect pin 4 on USB AB connector to the USB_OTGID pin on the CM3 and I've also got the VREF pins for ...
by InsertTitle
Thu Sep 06, 2018 2:29 pm
Forum: Compute Module
Topic: Carrier board what do I need to use USB OTG?
Replies: 0
Views: 668

Carrier board what do I need to use USB OTG?

Found out from previous threads I would need to connect pin 4 on a AB usb to the USB_OTGID pin on the CM3. I am also powering both of the GPIO VRef pins (0-27 & 28-45) with 3.3v Wondering if that is all I am required to do in order to access serial via usb micro? I know on the CMIO there were a nume...
by InsertTitle
Tue Aug 21, 2018 7:07 pm
Forum: Compute Module
Topic: Flashing EMMC via RPI zero w stuck waiting for connection
Replies: 5
Views: 807

Re: Flashing EMMC via RPI zero w stuck waiting for connection

I would guess it's a problem with the USB cable you're using. I've had a bit of trouble with cheap cables made only very slightly of copper! Especially for some reason with the Pi Zero. Can you try on a PC or a Raspberry Pi first? This will tell you if there's a hardware problem at least... Gordon ...
by InsertTitle
Tue Aug 21, 2018 8:29 am
Forum: Compute Module
Topic: Is there a way to monitor the CM3 using USB micro?
Replies: 11
Views: 1151

Re: Is there a way to monitor the CM3 using USB micro?

Sorry man, but i gave you the information that you need to serve USB OTG ID - pin 168 of the Compute module. As you did not know what I was talking about I've probided you the full USB OTG spec as a reference. Then you asked how to do this with your carrier board, and that's the point where I must ...
by InsertTitle
Mon Aug 20, 2018 9:08 pm
Forum: Compute Module
Topic: Is there a way to monitor the CM3 using USB micro?
Replies: 11
Views: 1151

Re: Is there a way to monitor the CM3 using USB micro?

OMG! Good luck with your guessing game! Sorry, but I did all I could. Sigh fed up of scrubs making posts like this. I gather my know how isn't the best when it comes to electronics, I come from a games software background and started taking up electronics just after I graduated uni so still delving...
by InsertTitle
Mon Aug 20, 2018 8:26 pm
Forum: Compute Module
Topic: Is there a way to monitor the CM3 using USB micro?
Replies: 11
Views: 1151

Re: Is there a way to monitor the CM3 using USB micro?

Just looking at my CMIO, so let me get this straight I would simply have to use a jumper from USB_OTGID to GPIO pin 4? Or do I simply GND it?

Or are you talking about pin 4 as in J4 where it says EN and DIS?
by InsertTitle
Mon Aug 20, 2018 8:05 pm
Forum: Compute Module
Topic: Is there a way to monitor the CM3 using USB micro?
Replies: 11
Views: 1151

Re: Is there a way to monitor the CM3 using USB micro?

What do you think why I've mentioned USB OTG-ID? Looks like you'll need some more readings http://www.usb.org/developers/onthego/otg1_0.pdf Pin4 on the 'slave' microUSB on CMIO is unconnected, you need to use the jumper for the signal. There are no D+/D- signals on a USB power adapter. They don't c...
by InsertTitle
Mon Aug 20, 2018 5:27 pm
Forum: Compute Module
Topic: Is there a way to monitor the CM3 using USB micro?
Replies: 11
Views: 1151

Re: Is there a way to monitor the CM3 using USB micro?

I see, didn't think of that thanks for the info. My only other question based off of this information is upon looking at other threads talking about USB Gadget Mode is that you should use the slave micro usb on the I/O and not the power micro. So I'm curious as to if I'm using only a single micro us...
by InsertTitle
Mon Aug 20, 2018 5:08 pm
Forum: Compute Module
Topic: Flashing EMMC via RPI zero w stuck waiting for connection
Replies: 5
Views: 807

Re: Flashing EMMC via RPI zero w stuck waiting for connection

Run the usbboot tool and it will wait for a connection: sudo ./rpiboot Now plug the host machine into the Compute Module IO board USB slave port (J15) and power the CMIO board on. The rpiboot tool will discover the Compute Module and send boot code to allow access to the eMMC. you're following this...
by InsertTitle
Mon Aug 20, 2018 12:38 pm
Forum: Compute Module
Topic: Flashing EMMC via RPI zero w stuck waiting for connection
Replies: 5
Views: 807

Flashing EMMC via RPI zero w stuck waiting for connection

Been following the documentation on CM3 for flashing the EMMC using a RPI Zero W. I can get past all the steps up to usbboot; however the moment I start sudo ./rpiboot I'm stuck waiting for BCM2835/6/7/ My current setup is RPI zero powered by wall socket and secondary micro usb into a unpowered usb ...
by InsertTitle
Mon Aug 20, 2018 8:39 am
Forum: Compute Module
Topic: Is there a way to monitor the CM3 using USB micro?
Replies: 11
Views: 1151

Is there a way to monitor the CM3 using USB micro?

So I've been working on a prototype using the compute module. Board design is in its 1st version and I'm already at work designing the refined 2nd version. During the rework I noticed a bit of issue when it comes to connecting to the compute module in order to monitor its progress. Originally I was ...
by InsertTitle
Sat Aug 04, 2018 5:53 pm
Forum: Compute Module
Topic: Possible to access Terminal / GUI wireless on CM3?
Replies: 1
Views: 555

Possible to access Terminal / GUI wireless on CM3?

First and foremost if I've missed something in the documentation that says how I can do the below or I'm plain dumb, then please point it out as would be most appreciated. Just got my own PCB board fabricated/assembled and looking to start adding in the CM3 into the mix of things. I'm currently usin...
by InsertTitle
Mon Jul 30, 2018 11:55 am
Forum: Compute Module
Topic: Query - Connecting a sensor via card edge connector. [solved]
Replies: 4
Views: 524

Re: Query - Connecting a sensor via card edge connector.

Disregard this thread now managed to answer own question after doing some research.
Mods can lock/delete thread.
by InsertTitle
Mon Jul 30, 2018 11:30 am
Forum: Compute Module
Topic: Query - Connecting a sensor via card edge connector. [solved]
Replies: 4
Views: 524

Re: Query - Connecting a sensor via card edge connector.

What does this have to do with the Raspberry Pi? Why not ask the manufacturer? I'm using the CM3 in the product. I wanted to find out if my suspicions regarding PCB fingers & the card edge connector were correct. Don't need to check this with manufacturer as I already know its 6 positions on either...
by InsertTitle
Mon Jul 30, 2018 11:19 am
Forum: Compute Module
Topic: Query - Connecting a sensor via card edge connector. [solved]
Replies: 4
Views: 524

Query - Connecting a sensor via card edge connector. [solved]

Trying to figure out how I an make my custom PCB more easily interchangeable should a sensor break I can easily swap out a new one. This would be a commercialised product but won't be released I suspect for at least another year or 2 as currently working on the 1st version and this for like version ...
by InsertTitle
Tue Jul 17, 2018 6:25 pm
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

@Jamesh I see, I didn't realise the Zero Cam by PiHut was a third party one always thought it was a product done by you guys. That's good to know and thanks for the info and about the cameras as well that's good insight. @6by6 Yes that's the camera I was on about. Also I'm currently got a 22 pin CMI...
by InsertTitle
Tue Jul 17, 2018 2:03 pm
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

Ah I see so it was semi-flex / flex rigid I would be after. Wanted to do exactly what semi-flex does but didn't know the name for it so was thinking of using edge connectors atleast for connecting the extra PCBs to my design (looking at creating a design that could be worn like glasses). I knew you ...
by InsertTitle
Mon Jul 16, 2018 9:12 pm
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

If you want to develop a prototype, the CM3 is the best way to do this. I assume you've already developed and tested your system on a Pi3 and optimised it? If not I'd start there, optimising the software is the best way of getting to the next step. With software improvements, you can usually get fa...
by InsertTitle
Thu Jul 05, 2018 8:35 am
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

I am still confused why you are not talking directly to the bodies concerned. That is because I'm currently still programming the 1st stage prototype at current. If when it gets released to market hopefully later this year, I hope to already have in production refined prototypes ready for the follo...
by InsertTitle
Wed Jul 04, 2018 2:03 pm
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

... I could still make use of the CM3 but my only issue is the sodimm connector. as its too big in width to fit within the frame size I'd want. Does anyone know of any alternative ways to be able to connect the CM3 to a PCB instead of using a 200 pin sodimm? ... I'm looking for the same SODIMM conn...
by InsertTitle
Fri Jun 22, 2018 7:26 am
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

So was asking this on reddit and recommendations with a friend that to go down the whole chip route would be a very costly idea and as alot of you said it would probably over complicate the prototype 100 fold. I could still make use of the CM3 but my only issue is the sodimm connector. as its too bi...
by InsertTitle
Thu Jun 21, 2018 1:59 pm
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 29
Views: 2897

Re: What would be the next step up from CM3?

Are you seriously expecting to gather opinions about competing products on a Raspberry Pi dedicated (and funded) forum? Don't be surprised if this thread is locked or deleted. Not at all bothered if it were to be locked or deleted. I simply set out this thread as asking what would the next step up ...

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