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Post by MartinT on Jul 8, 2020 20:14:10 GMT
It certainly could, and the TBS will form the centre of your streamer setup for a goodly amount of time. Performance is very good and it has proven utterly reliable for me so far.
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Post by Slinger on Jul 8, 2020 21:27:58 GMT
... Performance is very good and it has proven utterly reliable for me so far. +1
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Post by edward on Aug 12, 2020 20:36:37 GMT
Appreciate some hints/help please?
Even though I bought a Tinker Board sometime ago I've only got to playing with it recently. Issue I have is that it does not boot. Feeding it with a 5v/3a switched mode psu, light comes on but it does not boot.
In the expectation it is the PSU, Julian kindly came round with his powerbank (which he uses on his tinkerboard so is known to work ok).
When connecting the tinkerboard to a PC the Tinkerboard light comes on and the PC can see the Tinkerboard eMMC (16gb) embedded memory and I flashed that with DietPI. No errors reported via etcher. It did its verification thing.
But try as I might, even with all different combinations of the jumper (which is between the HDMI and the PSU input) but no joy.
Tried different HDMI cables and also different HDMI monitors. Tried with and without USB keyboard and mouse.
Any ideas?
Suspect the tinkerboard is fecked.
tia
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Post by MartinT on Aug 12, 2020 21:07:40 GMT
The Tinker Board has a power supply protection circuit which shuts it down if the voltage droops. I say this because, despite having a PSU that I thought was well up to the task, the power draw on boot up exceeds 2.5A for a while.
Try another 5V PSU to verify? One for a Pi will not suffice.
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Post by edward on Aug 12, 2020 21:24:27 GMT
The Tinker Board has a power supply protection circuit which shuts it down if the voltage droops. I say this because, despite having a PSU that I thought was well up to the task, the power draw on boot up exceeds 2.5A for a while. Try another 5V PSU to verify? One for a Pi will not suffice. Yep tried Julian's powerbank and that did not work either. Also I have one of those usb thingamajigs which measure voltage and amps. Julian's powerbank measures exactly 5v but when connecting to the tinkerboard the amp draw never exceeded 1A.
If it easy for you Martin please could you let me know what setting your jumper is on?
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Post by Clive on Aug 12, 2020 21:49:14 GMT
I had the same issue...it was the jumper which didn't correspond to the online diagrams. I can check mine tomorrow...
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Post by MartinT on Aug 12, 2020 21:51:08 GMT
It's in the default (Parking) position, jumper closest to the HDMI socket.
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Post by edward on Aug 12, 2020 22:20:34 GMT
Thanks Clive Martin, when I place the jumper in Parking the led light comes on for a few seconds and then goes out. No boot in any event. I'm wondering if the "U-boot" thing has been mucked up in some way. Apparently there is some way of fixing it. Don't understand the wiki on this. It seems to be written in chinglish. Do you know if you have no sd card loaded and no image has been written to the onboard memory will there be any output from the board via HDMI when booting? I found the following discussion. Option 3 seems to be the area I may usefully try. Any comments? www.tinkerboarding.co.uk/forum/thread-2293-post-10043.html#pid10043
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Post by Slinger on Aug 12, 2020 22:37:50 GMT
The Tinker Board has a power supply protection circuit which shuts it down if the voltage droops. I think that's an even better description than you intended.
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Post by Clive on Aug 13, 2020 6:43:42 GMT
I have the jumper parallel with the long sides of the pcb. It is on the two connections on the inside (not outer edge) of the board. Hopefully my description is clear enough.
This is for booting from the microSD.
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Post by edward on Aug 13, 2020 9:48:20 GMT
I have the jumper parallel with the long sides of the pcb. It is on the two connections on the inside (not outer edge) of the board. Hopefully my description is clear enough. This is for booting from the microSD. Thanks Clive. That, if I read the instructions correctly, is maskrom (sometimes seen as eMMC recovery) mode - meaning that the tinker board does not see the 16gb onboard storage at all.
I'll flash another sd card with the default Tinker OS using maskrom and see if that cures things.
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Post by Clive on Aug 13, 2020 10:24:51 GMT
I have the jumper parallel with the long sides of the pcb. It is on the two connections on the inside (not outer edge) of the board. Hopefully my description is clear enough. This is for booting from the microSD. Thanks Clive. That, if I read the instructions correctly, is maskrom (sometimes seen as eMMC recovery) mode - meaning that the tinker board does not see the 16gb onboard storage at all.
I'll flash another sd card with the default Tinker OS using maskrom and see if that cures things.
This was the only position where the board booted. This is why I feel the instructions are at variance with what works. I don't deny I'm somewhat mystified by this.
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Post by edward on Aug 13, 2020 20:42:04 GMT
Sorted! Essentially I needed to restore the "U-Boot" which is a small code that the Tinkerboard needs to boot. Seems like somehow I either ruined the U-Boot or used an image that did not contain U-Boot. Just for the record - in case someone else needs this - I did the following. 1. Flashed a SD card with the Tinkerboard OS (I chose the Debian version, the other version is Android). Flashed the card on a PC using Etcher. 2. Set the Tinkerboard jumper to MaskRom mode. Insert flashed SD card. 3. Connect Tinkerboard to monitor, keyboard, mouse etc and boot up. This, as the OS is first boot, will create relevant partitions etc. 4. Disconnect Tinkerboard (I used the Debian power down command). Leave the jumper in MaskRom mode. Remove the SD card. 5. Connect Tinkerboard via usb to a PC. The PC will now again be able to see the Tinkerboard storage as USB storage. Do NOT allow the PC to format the storage if invited to do so. 6. Once again, using Etcher, flash the OS image, but now to the Tinkerboard storage (16gb). Disconnect from the PC. 7. Move the Tinkerboard jumper to 'Parking' mode. 8. Connect Tinkerboard to monitor, keyboard etc and boot up. Viola! Also, just for the lolz, I booted the Tinkerboard (with keyboard and mouse) using a 5v/2a psu. All worked fine. There was no droop. Whilst booting max amp seen was 0.9a and then settled down at about 0.45a. Clearly if other stuff connected (e.g. USB drive) the power draw will be much higher.
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Post by Clive on Aug 13, 2020 21:05:32 GMT
That’s a useful sequence and I see the logic. What I’m not sure of is the benefit of booting from the 16gb. Is it speed or higher reliability than mictoSD?
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Post by edward on Aug 13, 2020 21:29:26 GMT
That’s a useful sequence and I see the logic. What I’m not sure of is the benefit of booting from the 16gb. Is it speed or higher reliability than mictoSD? I certainly noticed an improvement in speed - both booting up and navigating the default apps. But not so much as to make a song and dance about. What it probably has greater use for is to separate the OS drive and the data drive. So, for example, one could have an audio player on the OS internal storage and have a range of audio files on different SD cards. Reliability of SD cards is not much of an issue given the cost of SD cards.
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Post by Clive on Aug 13, 2020 21:31:55 GMT
That’s a useful sequence and I see the logic. What I’m not sure of is the benefit of booting from the 16gb. Is it speed or higher reliability than mictoSD? I certainly noticed an improvement in speed - both booting up and navigating the default apps. But not so much as to make a song and dance about. What it probably has greater use for is to separate the OS drive and the data drive. So, for example, one could have an audio player on the OS internal storage and have a range of audio files on different SD cards. Reliability of SD cards is not much of an issue given the cost of SD cards. That makes sense. In my case I’m using Volumio so once booted it’s in memory, it should be as fast as possible due to this...I hope!
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Post by julesd68 on Aug 17, 2020 23:09:49 GMT
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Post by MartinT on Aug 18, 2020 7:14:13 GMT
It is possible to design a good SMPS but not easy. Allo have a good track record in circuit design so it could be a good one.
The only way to know for sure would be to try one against an LPSU.
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Orac
Rank: Soloist
Posts: 5
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Post by Orac on Aug 23, 2020 7:55:11 GMT
Regarding powering the tinker board i found it best to supply the power to the header pins and not use the micro usb port as i had a 3 amp power supply that should have worked but it would not boot up but is fine now.
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Post by MartinT on Aug 23, 2020 8:48:45 GMT
Regarding powering the tinker board i found it best to supply the power to the header pins and not use the micro usb port as i had a 3 amp power supply that should have worked but it would not boot up but is fine now. Good trick. My Asaka case would be a problem, though, unless I drilled an access hole through it. Putting 2.5A through a microUSB connection is pushing it, rather.
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