- Welcome to Olimex Support Forum.
Olimex Support Forum
Recent posts
#1
ESP32 / ESP-POE-ISO and TFT_eSPI
Last post by Drjaymz - May 03, 2024, 01:08:15 PMAll, I'm hoping I haven't run into an issue that can't be overcome.
I have used the POE board a few times for remote sensing and not had any issues.
A current project requires an LCD display for feedback to the user. The LCD I have requires SPI. I didn't have the normal SPI pins I usually use for the LCD but I did configure it to use the following. And you'll be glad to know that yes the LCD works.
When I then combine it with the ethernet it kills the ethernet. As far as I can see they are NOT using the same SPI bus but I am not overly familiar with the ethernet setup.
I will look into SPI bus contention but ideally with chip select you should be able to do this.
If anyone has any information that would help save me time on where I shoudl look please help! If not I'll update the post with whether or not this was possible.
I have used the POE board a few times for remote sensing and not had any issues.
A current project requires an LCD display for feedback to the user. The LCD I have requires SPI. I didn't have the normal SPI pins I usually use for the LCD but I did configure it to use the following. And you'll be glad to know that yes the LCD works.
When I then combine it with the ethernet it kills the ethernet. As far as I can see they are NOT using the same SPI bus but I am not overly familiar with the ethernet setup.
I will look into SPI bus contention but ideally with chip select you should be able to do this.
If anyone has any information that would help save me time on where I shoudl look please help! If not I'll update the post with whether or not this was possible.
#2
New Product Ideas / Outstanding Сasual Dating - Tr...
Last post by speadup - May 03, 2024, 09:02:21 AMDiscover the ultimate in relaxed romance with the best casual dating platform!
Actual Girls
Optimal casual Dating
Actual Girls
Optimal casual Dating
#3
STMP1 / Re: Olimex STMP1 SOM - Error s...
Last post by Gaël - May 02, 2024, 10:51:04 AMHi!
I don't know if it's the same problem or if I have to create a new topic.
I have random boot error at starting up with SMTP1 LIME.
On thunderstorm power cuts, some boards don't restart.
On 20 STMP157-OLinuXino-LIME2H-EXT (Rev_B) boards in production approximately 5 boards remain frozen (its are distributed in several places so its do not suffer exactly the same power cuts).
I never have this problem when I reboot a board with a "shutdown -r now" (or "shutdown -r 00:00").
I did some tests and after some power cuts, the board stay frozen on :
When the board is frozen, the reset button don't help, the error returns.
A quick power cut doesn't help either.
For the error to disappear, the board need to be unplugged several seconds.
Quick power cuts seems to cause the problem every time.
NB : I tried with 1 A and 2 A power supply.
I don't know if it's the same problem or if I have to create a new topic.
I have random boot error at starting up with SMTP1 LIME.
On thunderstorm power cuts, some boards don't restart.
On 20 STMP157-OLinuXino-LIME2H-EXT (Rev_B) boards in production approximately 5 boards remain frozen (its are distributed in several places so its do not suffer exactly the same power cuts).
I never have this problem when I reboot a board with a "shutdown -r now" (or "shutdown -r 00:00").
I did some tests and after some power cuts, the board stay frozen on :
Code Select
U-Boot SPL 2021.04+olimex-1-20240312.134658 (Mar 12 2024 - 13:48:01 +0000)
Model: STM32MP1 OLinuXino-LIME
Init AXP209 PMIC
VDD Core set to: 1350 mvWhen the board is frozen, the reset button don't help, the error returns.
A quick power cut doesn't help either.
For the error to disappear, the board need to be unplugged several seconds.
Quick power cuts seems to cause the problem every time.
NB : I tried with 1 A and 2 A power supply.
#4
A64 / Re: Bookworm upgrade availabil...
Last post by mossroy - May 02, 2024, 10:43:01 AMI have several A20 and A64 boards that are still running on Debian Buster.
As major debian upgrades are not officially supported by Olimex, I will have to reinstall them.
Debian Buster long-term support will end on June 30, 2024. Will the Bookworm image be available by this time? Or shortly after? It would save much time for me to skip Bullseye, and do only one reinstall instead of two.
BTW, supporting debian major upgrades (like on any regular debian) would be even better
As major debian upgrades are not officially supported by Olimex, I will have to reinstall them.
Debian Buster long-term support will end on June 30, 2024. Will the Bookworm image be available by this time? Or shortly after? It would save much time for me to skip Bullseye, and do only one reinstall instead of two.
BTW, supporting debian major upgrades (like on any regular debian) would be even better
#6
ESP32 / Re: ESP32-POE RESET
Last post by LubOlimex - April 30, 2024, 08:42:47 AMYou can't reset memory contents via button. You can change the button BUT function to force bootloader entry to - you need to solder the pads of R49 together (or place 0R resistor). Refer to the schematic, the idea is to have D_Com connected to the button BUT. After this modification you can force bootloader by holding button BUT down, pressing reset and releasing BUT. Try if that makes the board programmable.
#7
ESP32 / ESP32-POE RESET
Last post by RiPi111 - April 30, 2024, 07:31:03 AMHello, unfortunately I have flashed an incorrect ESPHome code on my ESP and it probably reaches 100% CPU load immediately after switching it on and after a short time it becomes so hot that you can no longer touch it. Can you delete it at the push of a button?
Erasing with a flash tool doesn't work.
Thank you
Erasing with a flash tool doesn't work.
Thank you
#8
SHIELDS / Re: LCD16x2 compatibility Uno ...
Last post by LubOlimex - April 29, 2024, 09:51:41 AMThe combo will probably not work out-of-the-box. There is a hardware compatibility issue, SHIELD-LCD-16x2 uses 3.3V level I2C while the levels of the new UNO board are 5V. This means 3.3V I2C would meet 5V I2C which might be a problem for proper communication. This can be resolved if level translators are installed on the I2C line. There is a ton of information online about how you can translate 3.3V I2C and 5V I2C since it is a commonly encountered issue.
Maybe check this blog post on how UNO R4 WiFi can achieve 3.3V shield compatibility:
https://community.element14.com/products/arduino/arduino-projects/b/blog/posts/modifying-the-arduino-uno-r4-making-it-3-3v-friendly
About the software, it should work fine without changes.
Alternatively either use shield that has 5V levels for communication or use Arduino board that has 3.3V levels (you can tell if main chip is powered by 3.3V or if there are build-in translators on the communication lines).
Maybe check this blog post on how UNO R4 WiFi can achieve 3.3V shield compatibility:
https://community.element14.com/products/arduino/arduino-projects/b/blog/posts/modifying-the-arduino-uno-r4-making-it-3-3v-friendly
About the software, it should work fine without changes.
Alternatively either use shield that has 5V levels for communication or use Arduino board that has 3.3V levels (you can tell if main chip is powered by 3.3V or if there are build-in translators on the communication lines).
#9
STMP1 / Re: Olimex STMP1 SOM - Error s...
Last post by LubOlimex - April 29, 2024, 08:24:19 AMYes, R62. I have edited previous post.
#10
A64 / Re: Bookworm upgrade availabil...
Last post by mossroy - April 27, 2024, 06:22:22 PMQuote from: LubOlimex on June 14, 2023, 01:27:39 PMWe plan to upgrade but we don't have a timeline. As soon as we test how it works and apply all fixes needed.
@LubOlimex do you now have a timeline? Bookworm is the stable debian version since more than 10 months