hjc Posted October 14, 2018 Share Posted October 14, 2018 On 10/11/2018 at 4:09 AM, NicoD said: The undervoltage problem was a bad cable. It's a lot more stable with the original cable. I replaced the cable with a 0.25m USB Type-A to Type-C cable (a really cheap one), and it turns out that the voltage is much more stable. At full load+2*RTL8153, it's still up at ~4.97V, and multiple RTL8153 works like a charm now. However it seems that multiple RTL8153 behind a hub has some limitations. On the switch I can see traffic coming out on both USB attached ports, but they're only ~1.3Gbps total. When doing all port test (internal GbE+2 RTL8153, peer is 6*82583v configured with LACP), CPU0 is 100% and CPU2 is near 100%. I guess the A53 cores are not capable of handling such load. Anyway, currently the best choice seems to be attaching one additional RTL8153 for networking. It handles 2Gbps traffic in both directions simultaneously. 1 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 15, 2018 Share Posted October 15, 2018 The USB port can keep the board running by supplying power ? I have an external powered USB hard disk connected to my Nanopi-M4. Today, I did something wrong and I cannot connect to the board (as a headless server) through SSH, so I pulled the power cable to power down the board. However, the board kept running, and the green led kept flashing. It was powered down when I also unplugged the USB cable. 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 15, 2018 Share Posted October 15, 2018 2 hours ago, edupv said: so I pulled the power cable to power down the board. However, the board kept running, and the green led kept flashing. It was powered down when I also unplugged the USB cable. You can power the board with 5V on the gpio`s and on the usb-c. So from the moment there is sufficient power on the 5V it gets powered. But that a hard drive is powering it seems odd to me. How do you power the HDD? With a split usb cable? Is it in an enlosure? Maybe soething wrong with the power supply of the enclosure, a broken diode or so??? 0 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 15, 2018 Share Posted October 15, 2018 40 minutes ago, NicoD said: How do you power the HDD? With a split usb cable? Is it in an enlosure? Maybe soething wrong with the power supply of the enclosure, a broken diode or so??? Actually, it is a raid. https://www.unitek-products.com/product/usb-storage?view=product&id=197. I power it by using a micro-usb cable plugged into the DC IN socket of the enclosure, the other end of the cable plugged into a 5V USB PSU. When the board is off, plugging the usb cable of the raid to the usb port of board (while type-c power supply cable unplugged) will not turn the board on. However, when the board is powered on with both of the cables plugged in, unplugging the type-c power cable will not turn it off, it is still powered by the usb cable of the raid. 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 15, 2018 Share Posted October 15, 2018 2 hours ago, edupv said: Actually, it is a raid. https://www.unitek-products.com/product/usb-storage?view=product&id=197. I power it by using a micro-usb cable plugged into the DC IN socket of the enclosure, the other end of the cable plugged into a 5V USB PSU. When the board is off, plugging the usb cable of the raid to the usb port of board (while type-c power supply cable unplugged) will not turn the board on. However, when the board is powered on with both of the cables plugged in, unplugging the type-c power cable will not turn it off, it is still powered by the usb cable of the raid. That doesn't seem normal to me. I see no reason why there should be power on that output. I think @TonyMac32 knows more about these things. Is it normal the voltage is passed thru the i/o output of an hd enclosure? I can imagine that you could power the enclosure with that usb-c connector. So maybe the 5V there is open both ways? I'm just guessing. I think it doesn't start the sbc because there's nothing trying to read the hard drive. So it doesn't see it's connected. Once turned on, the sbc communicates with the hd, so it's turned on. And so the 5V is shared too. I can be completely wrong. The more knowledgeable people will know more. 0 Quote Link to comment Share on other sites More sharing options...
oeydev Posted October 16, 2018 Share Posted October 16, 2018 Is armbian include RPi.GPIO package ? How can I control GPIO? root:~# python Python 2.7.13 (default, Sep 26 2018, 18:42:22) [GCC 6.3.0 20170516] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import RPi.GPIO Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python2.7/dist-packages/RPi/GPIO/__init__.py", line 23, in <module> from RPi._GPIO import * RuntimeError: This module can only be run on a Raspberry Pi! >>> 0 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 16, 2018 Share Posted October 16, 2018 3 hours ago, oeydev said: Is armbian include RPi.GPIO package ? How can I control GPIO? If you are developing applications yourselves, you can consider the following generic gpio libraries : python : https://github.com/derekstavis/python-sysfs-gpio golang : https://github.com/brian-armstrong/gpio They can be used in all the boards. From one board to another board needs only changing the gpio port numbers. (e.g. Physical pin 7 of gpio header, OrangePi port number is 6, you have to change the port number to 32 for a Nanopi-M4). 0 Quote Link to comment Share on other sites More sharing options...
oeydev Posted October 16, 2018 Share Posted October 16, 2018 2 hours ago, edupv said: If you are developing applications yourselves, you can consider the following generic gpio libraries : python : https://github.com/derekstavis/python-sysfs-gpio golang : https://github.com/brian-armstrong/gpio They can be used in all the boards. From one board to another board needs only changing the gpio port numbers. (e.g. Physical pin 7 of gpio header, OrangePi port number is 6, you have to change the port number to 32 for a Nanopi-M4). Thanks! But how can I know pin number? 0 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 16, 2018 Share Posted October 16, 2018 On 10/16/2018 at 6:14 PM, oeydev said: Thanks! But how can I know pin number? From here, you can check the pin names : http://wiki.friendlyarm.com/wiki/index.php/NanoPi_M4#Diagram.2C_Layout_and_Dimension. I read somewhere, the formula of the port number is (32p + q + r) , where p, q, r are from the pin name GPIOp_qr. q is ABCD corresponding to 0123. For example, the name of pin 7 is GPIO1_A0, the port number is 32 x 1 + 0 + 0 = 32. Sorry, the above formula is incorrect, please read the following 2 posts. 0 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 17, 2018 Share Posted October 17, 2018 On 10/16/2018 at 7:45 PM, edupv said: From here, you can check the pin names : http://wiki.friendlyarm.com/wiki/index.php/NanoPi_M4#Diagram.2C_Layout_and_Dimension. I read somewhere, the formula of the port number is (32p + q + r) , where p, q, r are from the pin name GPIOp_qr. q is ABCD corresponding to 0123. For example, the name of pin 7 is GPIO1_A0, the port number is 32 x 1 + 0 + 0 = 32. I just checked the GPIO port numbers calculated by the above formula by using a led, only GPIO1_A0/1/3/4 are correct, other pins are all incorrect. Therefore, by the above formula, I know four port numbers only : PIN# Assignment Port number ==== ========== =========== 7 GPIO1_A0 32 11 GPIO1_A1 33 13 GPIO1_A3 35 15 GPIO1_A4 36 0 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 17, 2018 Share Posted October 17, 2018 I think the correct formula for the port number is (32p + 8q + r) , where p, q, r are from the pin name GPIOp_qr. q is ABCD corresponding to 0123. For example, pin# 8, GPIO4_C1, port number = (32x4 + 8x2 + 1) = 145. All the port number of the 40 pins GPIO header with names GPIOp_qr : PIN# Assignment Port number PIN# Assignment Port number ==== ========== =========== ==== ========== =========== 7 GPIO1_A0 32 8 GPIO4_C1 145 11 GPIO1_A1 33 10 GPIO4_C0 144 13 GPIO1_A3 35 12 GPIO1_C2 50 15 GPIO1_A4 36 16 GPIO1_C6 54 18 GPIO1_C7 55 22 GPIO1_D0 56 26 GPIO4_C5 149 I tested all the above pins for output mode with a led. 0 Quote Link to comment Share on other sites More sharing options...
chwe Posted October 17, 2018 Share Posted October 17, 2018 27 minutes ago, edupv said: other pins are all incorrect. or.. they're used for something else? e.g. 8 GPIO4_C1/I2C3_SCL(3V) 10 GPIO4_C0/I2C3_SDA(3V) as long as i2c-3 is active those pins shouldn't do anything as gpio.. check DT to see if things are active.. 0 Quote Link to comment Share on other sites More sharing options...
edupv Posted October 17, 2018 Share Posted October 17, 2018 14 minutes ago, chwe said: or.. they're used for something else? e.g. 8 GPIO4_C1/I2C3_SCL(3V) 10 GPIO4_C0/I2C3_SDA(3V) as long as i2c-3 is active those pins shouldn't do anything as gpio.. check DT to see if things are active.. May be yes, I don't know. Anyway, I have tested all the above mentioned pins for output mode with a led (with a resistor in series, of course). The scripts is attached : heartbeat.sh 0 Quote Link to comment Share on other sites More sharing options...
dogshome Posted October 21, 2018 Share Posted October 21, 2018 Hi guys, I've had good fun with the Orange Pi plus, learnt something about Linux and re-learned some electronics. The limitations of the Orange are now clear - although I've had my money's worth from it. Time for an upgrade and the Nano Pi M4 does the job. It works very well on an A2 rated SD card and 5.2V PSU. Installing packages on Armbian has been successful so far. USB 3 is great on an SBC and I would like to boot from that in the future once someone with better qualifications has solved that. The only trouble I am having is with sound. Both sound sinks are visible in the desktop app with the sound level bar dancing around as expected. I can see various options in mixer. removing mute on the appropriate channel gets audio (AV socket) but is horribly distorted. Friendly OS gives sound, but in a humorous s.l.ow.e.d... way which also hangs everything else. Turning off sound makes the other apps respond normally. I am used to Armbian now anyway. I think this is a driver problem, but can't find any info or help around (yet). This thread being the closest.... Anyone else had issues with AV sound on this board? I don't have an HDMI to try without dabbling round the back of the telly (which is on the wall!). It's also not 1080p and that caused issues on the previous SBC. 0 Quote Link to comment Share on other sites More sharing options...
Da Alchemist Posted October 22, 2018 Share Posted October 22, 2018 Sound seems to be a Problem on RK3399 Chips at the Moment. I got the Rockpro and the M4 , HDMI Sound is only working on 2 Channels, SPDIF is not working at all (did work on an early Kernel from ayufan for Rockpro) Sound on GPIO I2S is not working.. I think there are Driver Problems that are only solved when Rockchip is working on them. 0 Quote Link to comment Share on other sites More sharing options...
dogshome Posted October 22, 2018 Share Posted October 22, 2018 I guess it's a question of time then? Bluetooth also doesn't work now I've tried it (to use that for sound). Not investigated or searched much for that yet though. 0 Quote Link to comment Share on other sites More sharing options...
PacoGirona Posted October 22, 2018 Share Posted October 22, 2018 (edited) Hi, have a good day! I've been tested sound on a NanoPcT4 from FiendlyElec, running Armbian, an to get it working, thru armbian-config selected All drivers. Then you need ALSA mixer. The ALSA mixer can get devices on or off. They are in off state by default. So, from there I disabled HDMI sound, not interested of it by now, an enabled the internal chip, and it works OK. Is this device I'm using to write this, thinking replace my old tower... I did have problems on a Firefly-rk3399, and when I find a solution, I will put it at your hands, if I can... Edited October 22, 2018 by PacoGirona Notify me.... 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 22, 2018 Share Posted October 22, 2018 On 10/21/2018 at 2:28 PM, dogshome said: The only trouble I am having is with sound. Both sound sinks are visible in the desktop app with the sound level bar dancing around as expected. I can see various options in mixer. removing mute on the appropriate channel gets audio (AV socket) but is horribly distorted. Friendly OS gives sound, but in a humorous s.l.ow.e.d... way which also hangs everything else. Turning off sound makes the other apps respond normally. I am used to Armbian now anyway. I think this is a driver problem, but can't find any info or help around (yet). This thread being the closest.... Anyone else had issues with AV sound on this board? I don't have an HDMI to try without dabbling round the back of the telly (which is on the wall!). It's also not 1080p and that caused issues on the previous SBC. Hi. I just tried with a fresh install of Armbian Stretch. Without changing anything sound worked thru the 3.5mm plug. HDMI also works when I turn off the realtek rt5651-codec. In Armbian Bionic also no problem. What do you mean with AV sound? 0 Quote Link to comment Share on other sites More sharing options...
dogshome Posted October 23, 2018 Share Posted October 23, 2018 Meaning the 3.5mm jack. Thanks for this - I may have a faulty board. Might try another amp though in case it doesn't like mine. The opi and my pc are happy with it, but it is home / kit build class d and there could be some unwanted interaction. Ta! 0 Quote Link to comment Share on other sites More sharing options...
dogshome Posted October 26, 2018 Share Posted October 26, 2018 Solved! Some software problem..... I tried another amp and lead and no difference. So I opened alsa mixer and started fiddling. I don't know exactly what happened, but my meddling with the M key and enabling everything from left to right and I have clean stereo audio. I tried selecting things individually (or in stereo pairs) with no success. In desperation I just turned everything on in sequence and now it works. Not touching it any more! Didn't know about it or touch it after install I promise P.S. Heatpad confirmed as NVG (Not Very Good!). I'm using 2 * 1mm copper spacers, thermal compound and thin fibre washers under the PCB on the mounting points. Two 1mm spacers would put too much bend on the PCB otherwise. A fan is required as the heatsink has a long thermal inertia, but eventually reaches 55C or more. Gelid silent 50mm fan on 5V is almost inaudible and results in ~35C Maximum. A 30mm fan would be enough. 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 26, 2018 Share Posted October 26, 2018 1 hour ago, dogshome said: So I opened alsa mixer and started fiddling. I don't know exactly what happened, but my meddling with the M key and enabling everything from left to right and I have clean stereo audio. I tried selecting things individually (or in stereo pairs) with no success. In desperation I just turned everything on in sequence and now it works. It doesn't use alsa-mixer in Armbian but pulseaudio instead. There you had to select the right channel. All Armbian images use pulseaudio. Cheers. 0 Quote Link to comment Share on other sites More sharing options...
Seasalt Posted October 27, 2018 Share Posted October 27, 2018 8 hours ago, NicoD said: It doesn't use alsa-mixer in Armbian but pulseaudio instead. There you had to select the right channel. All Armbian images use pulseaudio. Cheers. Hey Nico when are yo doing another excellent NanoPi M4 Youtube video? I just order the 2Gb version. 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 27, 2018 Share Posted October 27, 2018 3 hours ago, Seasalt said: Hey Nico when are yo doing another excellent NanoPi M4 Youtube video? I just order the 2Gb version. Hi. I`m now benchmarking all my sbc`s for a next video. After that I think it`s Video Editing on SBC`s with the M4. I`ve got another board on the way too. So it will take some time. I`ve done some research on gaming on the M4, but it will take some time before it all works well enough. What would you like to see in a video? Thank you. Greetings 0 Quote Link to comment Share on other sites More sharing options...
Seasalt Posted October 27, 2018 Share Posted October 27, 2018 3 hours ago, NicoD said: What would you like to see in a video? Ok for me this NanoPi M4 @2GB is goiing to be a Amatuer / HAM radio, low power / solar Powered Ham Shack always on computer. I will expect it to run my Linux based Software defined Radio software. My main program is GQRX. The biggest issue I usually have is getting sound to work with Linux radio programs. So if you are looking for something to do maybe set yup 5 different programs and see if they can all play sound at the same time. Also see if they can Mic in at the same tiome. If you have a RTL-SDR dongle please try and bench mark GQRX. Seasalt. 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 27, 2018 Share Posted October 27, 2018 5 hours ago, Seasalt said: Ok for me this NanoPi M4 @2GB is goiing to be a Amatuer / HAM radio, low power / solar Powered Ham Shack always on computer. I will expect it to run my Linux based Software defined Radio software. My main program is GQRX. The biggest issue I usually have is getting sound to work with Linux radio programs. So if you are looking for something to do maybe set yup 5 different programs and see if they can all play sound at the same time. Also see if they can Mic in at the same tiome. If you have a RTL-SDR dongle please try and bench mark GQRX. Seasalt. Nice project. Certainly do-able to power it with solar panels. I've got solar panels too, and great power banks that work as UPS. So you can charge while using it. I think with a 4A 5V solar panel you'd be good(more is ofcourse better). The M4 uses almost nothing when in idle (0.3A). So you don't need that much to run it for 24 hours. I'm sorry but now I can't test those things. I'm too bussy benchmarking all my sbc's. For the moment I'm not using the M4, already done it. Not much can tip on the performance of the M4. Only the Odroid XU4 and the NanoPC T3+ do better with some tasks. Good luck with your M4. I hope the software you'll use is available for ARM. I don't know that software. Greetings. NicoD 0 Quote Link to comment Share on other sites More sharing options...
dogshome Posted October 29, 2018 Share Posted October 29, 2018 Cable and bench-friendly heatsink. 0 Quote Link to comment Share on other sites More sharing options...
NicoD Posted October 29, 2018 Share Posted October 29, 2018 @dogshome Not pretty, but functional. I don't think you'll have an overheating problem. 0 Quote Link to comment Share on other sites More sharing options...
Tido Posted October 30, 2018 Share Posted October 30, 2018 23 hours ago, dogshome said: Cable and I like the USB Micro to USB-C adapter 0 Quote Link to comment Share on other sites More sharing options...
TonyMac32 Posted November 1, 2018 Share Posted November 1, 2018 On 10/30/2018 at 3:43 PM, Tido said: I like the USB Micro to USB-C adapter 1 Quote Link to comment Share on other sites More sharing options...
Tantalum Posted November 1, 2018 Share Posted November 1, 2018 Hello Can someone explain me the purpose of the PWR_KEY on the M4/NEO board please? Even after checking the schema and the PMIC datasheet I still don't fully understand how it works exactly. Does it act as an reset? Or does it act like a regular power button on a PC, in other words, it tells the OS to properly shutdown, to avoid data corruption. Thank you 0 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.