Search found 27 matches
- Thu Nov 07, 2019 11:53 am
- Forum: General Discussion
- Topic: Adress 0x40060000-0x4006FFFF 64 KB Reserved adresses & ESP32-S2
- Replies: 2
- Views: 3693
Adress 0x40060000-0x4006FFFF 64 KB Reserved adresses & ESP32-S2
Hello, When running an esp32 application in qemu https://github.com/Ebiroll/qemu_esp32 I have noticed that it is not enough to dump only the official 384 KB of ROM as the ROM contains a call to adress 0x40062a6c which is contained in Reserved space. Does anyone have a hint to what is located here, s...
- Thu May 03, 2018 1:40 pm
- Forum: Showcase
- Topic: ARM single wire debug with black magic and the ESP32
- Replies: 4
- Views: 52984
Re: ARM single wire debug with black magic and the ESP32
Its almost complete, except for Jtag. You must use the SWD pins. 2 of them + ground. I am currently adding a web based log viewer/serial terminal. Wanted to use the SWO pin for that but will probably just use an extra UART instead. It seems easier to understand. I am amazed how well it works. It fee...
- Fri Apr 13, 2018 8:51 am
- Forum: Showcase
- Topic: ARM single wire debug with black magic and the ESP32
- Replies: 4
- Views: 52984
ARM single wire debug with black magic and the ESP32
If you are into ARM programming and your device has support for SWD you can now do it over wifi with the ESP32! https://github.com/Ebiroll/esp32_blackmagic I wanted to send it back as a pull request to, https://github.com/blacksphere/blackmagic but do not have the skills to fix the makefiles. This i...
- Wed Jan 31, 2018 9:36 am
- Forum: Showcase
- Topic: ESP32 as a logic analyzer.
- Replies: 5
- Views: 22550
Re: ESP32 as a logic analyzer.
Hi Olof, Is there a way to something else than the Wrover kit, so with something like the Devkit for example? I also saw on the Guthub, that the current sample rate is hard coded to 10kHz. For me it seems quite small, or maybe I'm missing something. Regards, Ben Hello, Sorry for the late reply. Yes...
- Thu Dec 21, 2017 10:19 am
- Forum: Showcase
- Topic: ESP32 as a logic analyzer.
- Replies: 5
- Views: 22550
Re: ESP32 as a logic analyzer.
Hello again. I did some more tests yesterday and it turns out that the reason why it was working so well was because I was using pin 12-15 on the WROVER-KIT. Sigrok was then able to use the JTAG, chip on the WROVER-KIT board for data acquisition. It was just a coincidence that I used these pins on t...
- Wed Dec 20, 2017 10:49 am
- Forum: Showcase
- Topic: ESP32 as a logic analyzer.
- Replies: 5
- Views: 22550
ESP32 as a logic analyzer.
By using sigrok and implementing the SUMP protocol over serial I was able to use the ESP32 as a logical analyzer. Quite a nice way to get a better understanding of the streams of bits running over the wires of the ESP32. https://en.wikipedia.org/wiki/Sigrok https://raw.githubusercontent.com/Ebiroll/...
- Tue Dec 05, 2017 1:59 pm
- Forum: Showcase
- Topic: I2S-parallel example: Drive a 64x32 display
- Replies: 61
- Views: 280364
Re: I2S-parallel example: Drive a 64x32 display
Thanks @rudi ;) I will get a 5V 4A supply. I ordered this LED panel https://www.aliexpress.com/item/P4-Indoor-RGB-Black-LED-SMD2121-64x32-Matrix-Full-Color-1-16scan-Module-for-HD-Indoor/32742067912.html?spm=a2g0s.9042311.0.0.c1pPY2 I also ordered this SALEAE clone https://www.aliexpress.com/item/New...
- Tue Dec 05, 2017 11:00 am
- Forum: Showcase
- Topic: I2S-parallel example: Drive a 64x32 display
- Replies: 61
- Views: 280364
Re: I2S-parallel example: Drive a 64x32 display
Hello Friends,
Really interesting application and example.
I just ordered a similar display from China.
It seems that you drive the display directly from the ESP32.
What Vcc-voltage for the display are you using 3.6V or 5.0V?
/Olof
Really interesting application and example.
I just ordered a similar display from China.
It seems that you drive the display directly from the ESP32.
What Vcc-voltage for the display are you using 3.6V or 5.0V?
/Olof
- Mon May 08, 2017 10:13 am
- Forum: General Discussion
- Topic: File System
- Replies: 5
- Views: 7960
Re: File System
For the record. This has been fixed in 33b8b78.
- Mon May 08, 2017 10:10 am
- Forum: General Discussion
- Topic: New LIbrary vfs_fat_spiflash not working
- Replies: 8
- Views: 11336
Re: New LIbrary vfs_fat_spiflash not working
For the record. It was an error in QEMU, now it works fine. You can also mount the FAT image, mkdir fat_partition sudo mount -o loop,offset=0x110000 esp32flash.bin fat_partition ls fat_partition ????? hello.txt However reading the file did not work. od -h fat_partition/hello.txt 0000000 0000 0000 00...