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by sc_paul2002
Tue Aug 04, 2020 5:27 am
Forum: Beginners
Topic: How I setup Raspberry pi to check performance with 8GB RAM usage ?
Replies: 0
Views: 195

How I setup Raspberry pi to check performance with 8GB RAM usage ?

... single board computer Raspberry Pi 4B with 8 GB RAM version. They also released launched their Raspberry Pi 64bit OS (Beta Version which is under test now) for the first time!! During this weekend I prepared some set up with the new OS and Hardware and did a performance check of this new device ...
by rclark
Tue Aug 04, 2020 3:55 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 228
Views: 39497

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

So far so good on PI OS x64. I've it installed on an RPI4-8G loaded on an SD card and now on a RPI4-4G booting from a Samsung T5 500GB SSD (without an SD card installed!). Haven't come up against a real show stopper yet. However, tonight I tried to use fstrim command on the T5 and it says the discar...
by GarraTheWinnie
Tue Aug 04, 2020 2:28 am
Forum: Beginners
Topic: Testing gpio and MCP8003
Replies: 11
Views: 275

Testing gpio and MCP8003

Hey everyone, I soldered my headers onto my Raspberry Pi 0, and have tried a circuit with my MCP8003. I’m wondering if there is any way to test them. How do I know that all my pins were soldered well? Is there a program or a circuit I can use to Verify it? Also, my MCP3008 keeps shooting out ...
by BanjoApocalypse
Tue Aug 04, 2020 1:01 am
Forum: Camera board
Topic: Struggling with Sensor Mode
Replies: 1
Views: 82

Struggling with Sensor Mode

I bought a high quality camera and a couple adapters to mount it on a telescope. I took it for a test drive last night and was somewhat impressed by the results with a little tweaking. However, I could not seem to change the sensor mode. Here's the command I was using: ...
by pcmanbob
Mon Aug 03, 2020 11:05 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2 Model B keeps dying!
Replies: 10
Views: 289

Re: Raspberry Pi 2 Model B keeps dying!

... sake of it! ;) It's ok we learn by asking questions, We have to start somewhere in trying to decide if it's a hardware or software problem and a test of the SD card is simple and can be left running while doing other things.
by LucasBC
Mon Aug 03, 2020 7:03 pm
Forum: Camera board
Topic: Trouble locking image colour in HQ camera video
Replies: 16
Views: 527

Re: Trouble locking image colour in HQ camera video

... try now. Hmmm... so far I'm unable to get raspistill to take a JPG with manual exposure. Although this command works: raspistill -t 5000 -o image_test6.jpg -w 1920 -h 1080 -awb off -awbg 2.4296875,2.3203125 auto exposure is still active, which isn't a true test. But the moment I add these values ...
by trejan
Mon Aug 03, 2020 6:56 pm
Forum: General discussion
Topic: Pi4 EEPROM not recoverable / bricked
Replies: 18
Views: 683

Re: Pi4 EEPROM not recoverable / bricked

... The GPIO expander only lists 7 outputs so there is still 1 spare. It may be muxed with something else as well. Get the multimeter out and test to see if the switch works.
by idcidc
Mon Aug 03, 2020 6:25 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: [UPDATED, SOLVED] Why "cheap" Chinese HDMI-to-CSI2 adapters (e.g.18810-1 C779) doesn't provide I2S sound
Replies: 19
Views: 725

Re: [UPDATED, SOLVED] Why "cheap" Chinese HDMI-to-CSI2 adapters (e.g.18810-1 C779) doesn't provide I2S sound

... picture (yavta -> mmal), sound via I2S is present, as expected. Video source is HXR-NX5U camcorder by Sony, running at 720p, 60fps. Color bars & test tone generator is enabled. Logs of "normal" execution with original B100: CTA-861 Header IT Formats Underscanned: yes Audio: yes YCbCr 4:4:4: no ...
by BNK10
Mon Aug 03, 2020 6:04 pm
Forum: Graphics, sound and multimedia
Topic: 12" Toshiba TFT LCD via GPIO
Replies: 3
Views: 308

Re: 12" Toshiba TFT LCD via GPIO

... My experience with this configuration via DPI is zero, but I managed to make CCFL work 12v and today I will try to make the connection on GPIO and test the settings. I'll post the progress here if it works! :D
by mogo4414
Mon Aug 03, 2020 4:52 pm
Forum: Python
Topic: Threading
Replies: 3
Views: 143

Re: Threading

ghp, Thank you for taking the time do detail that all out! And yes that is very helpful. In my test code I have some local and global variables, so it would make sense that I was getting mixed results. I'm going to redesign the code a little to remove the global variables, ...
by ZanderMJW
Mon Aug 03, 2020 3:11 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2 Model B keeps dying!
Replies: 10
Views: 289

Re: Raspberry Pi 2 Model B keeps dying!

I would suggest you test your new SD card using a program like H2testW https://h2testw.en.lo4d.com/windows make sure you have everything off the SD card that you want first as H2testW will over right the entire card while testing. ...
by pcmanbob
Mon Aug 03, 2020 2:58 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2 Model B keeps dying!
Replies: 10
Views: 289

Re: Raspberry Pi 2 Model B keeps dying!

I would suggest you test your new SD card using a program like H2testW https://h2testw.en.lo4d.com/windows make sure you have everything off the SD card that you want first as H2testW will over right the entire card while testing. ...
by cleverca22
Mon Aug 03, 2020 1:42 pm
Forum: General discussion
Topic: Pi4 EEPROM not recoverable / bricked
Replies: 18
Views: 683

Re: Pi4 EEPROM not recoverable / bricked

... set the SPI port up right, you can talk to the chip with flashrom, and that tells you the model# of the chip @cleverca22: -I have no other RPI4 to test it on. are you on linux or windows? what does `fdisk -l` report for the SD card with recovery.bin?
by nutron
Mon Aug 03, 2020 1:37 pm
Forum: General discussion
Topic: Pi4 EEPROM not recoverable / bricked
Replies: 18
Views: 683

Re: Pi4 EEPROM not recoverable / bricked

@ cleberca22: -I have no other RPI4 to test it on. -inserted the recovery sd card and shorted RUN and GND , no ACT LED flash. -adding "uart_2ndstage=1" to raspbian config.txt didn't do anything either. -voltages on rails are all OK. @trejan: ...
by ZanderMJW
Mon Aug 03, 2020 1:35 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2 Model B keeps dying!
Replies: 10
Views: 289

Re: Raspberry Pi 2 Model B keeps dying!

I would suggest you test your new SD card using a program like H2testW https://h2testw.en.lo4d.com/windows make sure you have everything off the SD card that you want first as H2testW will over right the entire card while testing. ...
by bowen73
Mon Aug 03, 2020 12:50 pm
Forum: HATs and other add-ons
Topic: Waveshare GSM-GPRS-GNSS Hat Guidance
Replies: 4
Views: 425

Re: Waveshare GSM-GPRS-GNSS Hat Guidance

with mine i get errors with nearly all. the gps.py just seams to hang and i have to ctrl-c out of it when i do sms.py it shows 'test mode enabled' sending message, then message sent. but no message received :-s have searched hi and low to see if others work but for some reason they dont. ...
by JMK8
Mon Aug 03, 2020 12:16 pm
Forum: General discussion
Topic: Enabling HW watchdog timer on RaspiOS Buster Pi 4B
Replies: 2
Views: 230

Re: Enabling HW watchdog timer on RaspiOS Buster Pi 4B

OK, so I think I have enabled the watchdog timer on my Pi 4B (Buster) but now I cannot seem to get RaspiOS to hang with a fork bomb. Good in a way, it shows how resilient it is but I want it to hang to test the watchdog timer. Any ideas?
by pcmanbob
Mon Aug 03, 2020 10:36 am
Forum: Troubleshooting
Topic: Raspberry Pi 2 Model B keeps dying!
Replies: 10
Views: 289

Re: Raspberry Pi 2 Model B keeps dying!

I would suggest you test your new SD card using a program like H2testW https://h2testw.en.lo4d.com/windows

make sure you have everything off the SD card that you want first as H2testW will over right the entire card while testing.
by bill.damage
Mon Aug 03, 2020 10:28 am
Forum: Graphics, sound and multimedia
Topic: Pi 2 / Pi 4 video overlay differences
Replies: 9
Views: 395

Re: Pi 2 / Pi 4 video overlay differences

Hi, and thanks again. I'm definitely not knowingly trying to display a 1x1 image, it must be a side effect of the framework I guess. I made a more representative min app, and the only way I could think of showing what happens is to make a video of the same app running on both platforms. Heres the pi...
by timg236
Mon Aug 03, 2020 10:25 am
Forum: Troubleshooting
Topic: BUG: ERROR 44 with Freshly Imaged USB Devices and Unsuccessful Initial Boot(s) using Pi 4Bs
Replies: 3
Views: 190

Re: BUG: ERROR 44 with Freshly Imaged USB Devices and Unsuccessful Initial Boot(s) using Pi 4Bs

... give more context including the hash of the firmware being booted. However, it sounds like the start4.elf file is either missing or too old. For test purposes (and USB MSD is still under beta test until the next Raspberry Pi OS) nightly builds with latest rpi-update kernel and firmware pre-installed ...
by anderhoff
Mon Aug 03, 2020 9:50 am
Forum: Troubleshooting
Topic: BUG: ERROR 44 with Freshly Imaged USB Devices and Unsuccessful Initial Boot(s) using Pi 4Bs
Replies: 3
Views: 190

BUG: ERROR 44 with Freshly Imaged USB Devices and Unsuccessful Initial Boot(s) using Pi 4Bs

... image the USB drive (seems fine this way from Pi 4B). What clued me in? Tried moving the then working SSD to the 8GB model - No dice! Is it dead? Test booting with SD card - No issue booting the Pi 4B with the SD card. Checked a few things - realized I needed to update the 8GB Pi 4B's firmware ...
by zeros
Mon Aug 03, 2020 8:26 am
Forum: Graphics, sound and multimedia
Topic: Dual displays 4K output - are the two equal?
Replies: 20
Views: 1033

Re: Dual displays 4K output - are the two equal?

I have tested these different variants with the same not working results (only one monitor is OK): hdmi_ignore_edid:0=0xa5000080 hdmi_group:0=1 hdmi_mode:0=76 hdmi_ignore_edid:1=0xa5000080 hdmi_group:1=2 hdmi_mode:1=82 --AND ...
by drgeoff
Mon Aug 03, 2020 8:08 am
Forum: General discussion
Topic: Pi4 won't boot with GPIO connections (lcd display) after wire mix up
Replies: 8
Views: 269

Re: Pi4 won't boot with GPIO connections (lcd display) after wire mix up

... display connected via GPIO however will light up and stay lit. When I unplug all connections from the GPIO board, the pi powers up fine. I have tested the GPIO using gpiotest and there are not problems flagged but I also noticed that this particular script does not test gpio pins 1 and 39 (the ...
by aBUGSworstnightmare
Mon Aug 03, 2020 8:01 am
Forum: Troubleshooting
Topic: Reducing the amount of display detection/flashing?
Replies: 6
Views: 253

Re: Reducing the amount of display detection/flashing?

How can one test this app? found several websites which state 'openauto pro' .. some of them offer download packages, other paid SDcard images ...
by mogo4414
Mon Aug 03, 2020 4:09 am
Forum: Python
Topic: Threading
Replies: 3
Views: 143

Threading

... "C()" and also changes variable "c", but this time to 2. Would thread A, on its next iteration, now read a "c" value of 2? (I was trying to test this myself but ending up running into some results that were a bit perplexing. So just hoping to get a second opinion.) Thanks in advance for ...

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