Recent posts

#91

A20 / Re: Interrupt EINT31(PI19)

Last post by Starkafan - April 25, 2024, 10:40:19 AM

It is similar to this:

https://www.olimex.com/forum/index.php?topic=4400.0

EINT are already supported in older sunxi images, and can be used as described in here:

https://github.com/OLIMEX/OLINUXINO/blob/master/SOFTWARE/A20/A20-build-3.4.103-release-7/USAGE-AND-COMMON-PRACTICEs-A20-Olimex_kernel_3.4.103%2B_Jessie_rel_3.txt

Older sunxi images can be found at our FTP.

Thank You. I'm sorry to be late with the reply.
Used a hardware timer instead

#92

ESP32 / Olimex ESP32-EVB Rev H DC powe...

Last post by jameslopp - April 25, 2024, 10:39:10 AM

Hello,
I am having an issue with our Rev H board not booting up when powered via the DC jack. If powered over USB, they work fine, and also previous versions work.
minecraftle game
Any ideas to get the Rev H boards working properly, other than power them via USB?

#93

A20 / Real Time Clock "OLIMEX" A20-O...

Last post by Starkafan - April 25, 2024, 07:57:23 AM

I connect battery 3V to BACKUP contacts near with LAN connector (net AXP_BACKUP, connected to U13:30, IC AXP209)

I synchronized the time in the evening with my work computer at 16:22.
Turned off Olimex.
In the morning, Olimex time is 07:10, and the time on the work computer is 06:59. Difference 11 minutes.

Why might this happen?

But when Olimex is turned on, every 10 minutes the clock lags by about 14 seconds.

If I'am run my program and every second execute command "hwclock -w" (set hardware clock from system time), the clock stops slowing down. The clock speeds up by about 6 seconds every half hour.

#94

A20 / Re: Interrupt EINT31(PI19)

Last post by horroraround - April 25, 2024, 07:12:04 AM

It is similar to this:

https://www.olimex.com/forum/index.php?topic=4400.0

EINT are already supported in older sunxi images, and can be used as described in here:

slice master

https://github.com/OLIMEX/OLINUXINO/blob/master/SOFTWARE/A20/A20-build-3.4.103-release-7/USAGE-AND-COMMON-PRACTICEs-A20-Olimex_kernel_3.4.103%2B_Jessie_rel_3.txt

Older sunxi images can be found at our FTP.

Thanks for your solution admin LubOlimex. I'm also looking to configure the interrupt from EINT31.

#95

ESP32 / Re: ESP32-C3 Dev Kit LiPo can...

Last post by LubOlimex - April 24, 2024, 08:18:55 AM

Nice thanks for the update and the info, might help others in future.

#96

ESP32 / Re: ESP32-C3 Dev Kit LiPo can...

Last post by 38Super - April 23, 2024, 10:11:37 PM

Yay.
Got both boards working.
Connected pin 9 to GND with a 10K resistor. Upload successful once and now working normally without the resistor.

Appears to be sorted.

Thanks.

#97

ESP32 / Re: ESP32-C3 Dev Kit LiPo can...

Last post by LubOlimex - April 23, 2024, 04:44:54 PM

Maybe try with better, shorter USB cable and another USB port. Avoid splitters, connect directly to USB port.

#98

ESP32 / Re: ESP32-C3 Dev Kit LiPo can...

Last post by LubOlimex - April 23, 2024, 04:40:30 PM

There is something very wrong with your setup or usage. Are you selecting the proper COM port? Here are three pictures of my setup:

https://imgur.com/a/CYni2e6

Unit is listed as:

BN: ESP32H2 Dev Module
VID: 303a
PID: 1001

And it is listed as USB Serial Device in device manager.

Also this is the Arduino log I get:

Code Select Expand

esptool.py v4.6
Serial port COM18
Connecting...
Chip is ESP32-C3 (revision v0.3)
Features: WiFi, BLE
Crystal is 40MHz
MAC: a0:76:4e:7c:4f:70
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Flash will be erased from 0x00000000 to 0x00003fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x0000e000 to 0x0000ffff...
Flash will be erased from 0x00010000 to 0x0004afff...
Compressed 13632 bytes to 9886...
Writing at 0x00000000... (100 %)
Wrote 13632 bytes (9886 compressed) at 0x00000000 in 0.3 seconds (effective 387.8 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 146...
Writing at 0x00008000... (100 %)
Wrote 3072 bytes (146 compressed) at 0x00008000 in 0.1 seconds (effective 262.1 kbit/s)...
Hash of data verified.
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.1 seconds (effective 524.3 kbit/s)...
Hash of data verified.
Compressed 240448 bytes to 135039...
Writing at 0x00010000... (11 %)
Writing at 0x0001aff8... (22 %)
Writing at 0x00021f71... (33 %)
Writing at 0x00028ce2... (44 %)
Writing at 0x0002ed6a... (55 %)
Writing at 0x00034e81... (66 %)
Writing at 0x0003c050... (77 %)
Writing at 0x00042fbe... (88 %)
Writing at 0x00049086... (100 %)
Wrote 240448 bytes (135039 compressed) at 0x00010000 in 2.4 seconds (effective 809.9 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...


#99

ESP32 / Re: ESP32-C3 Dev Kit LiPo can...

Last post by 38Super - April 22, 2024, 10:15:02 PM

The only version number I can find under boards manager is under:-

"ESP32 by espressif sysyems"
3.0.0-rc1

in additional board manager I have installed:-
https://espressif.github.io/arduino-esp32/package_esp32_dev_index.json

I couldn't see the Olimex ESP32 C3 Devkit LiPo listed in the 'stable' version but I can see it and set it from the developer version.
It is correctly listed at the bottom of the Arduino IDE screen on com6.
Arduino IDE is version 2.3.2

The board info is now showing an Adafruit C3.

I'm trying to upload an image but can't get it to work.

Is there any chance your ESP-PROG board might help?

#100

STMP1 / Re: Olimex STMP1 SOM - Error s...

Last post by thom_nic - April 22, 2024, 09:21:46 PM

Edit: disregard, I was looking at the wrong SOM product page.

Hi Lub - I do not see the updated PDF schematic on the product page and I also cannot find any repo on https://github.com/OLIMEX/ for the STMP1 SOM hardware.  In addition to just schematic it would be helpful to know where to find the hardware changelog for this SOM.  For example many of the SOMs are here but not the STMP1.  Thanks.