Search found 18 matches

by davidbuzz
Thu Nov 15, 2018 12:28 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

Ok, I think I found the right reference ...

https://0x04.net/~mwk/doc/xtensa.pdf
"Xtensa® Instruction Set Architecture (ISA) Reference Manual For All Xtensa Processor Cores"
by davidbuzz
Thu Nov 15, 2018 12:19 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

This doc provides more in depth info on the cpu,memory,peripherals,interupt matrix,clocks, up, and all the on-board peripheral controllers... I think it's getting close to what u wanted...?

https://espressif.com/sites/default/fil ... ual_en.pdf
by davidbuzz
Wed Nov 14, 2018 5:10 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

I'd just like to also point out that as I understand it, the "hard" part of a port to a new chip is the context switching ( because the chibios wiki says so ).... and this particular goal ( getting it running on esp32) can benefit heavily from the fact that freeRTOS already runs on the chi...
by davidbuzz
Wed Nov 14, 2018 3:24 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

details of gcc available: xtensa-esp32-elf-* for linux here: https://dl.espressif.com/doc/esp-idf/latest/get-started/linux-setup.html ( windows is also available at a similar place). xtensa-esp32-elf/bin$ ./xtensa-esp32-elf-gcc --version xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-73-ge28...
by davidbuzz
Wed Nov 14, 2018 1:43 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

59page datasheet is here, including memory map, clocks, ram, pin descriptions, block diagram, and links to other good resources etc) http://espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf More details here: https://www.espressif.com/en/products/hardware/esp32/overview C and c+...
by davidbuzz
Tue Nov 13, 2018 3:17 pm
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

A forum area, and whatnot sounds great. I'm in. Who else?
by davidbuzz
Tue Nov 13, 2018 7:10 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

... there is clearly interest elsewhere too... eg: https://github.com/ArduPilot/ardupilot/issues/7751
by davidbuzz
Tue Nov 13, 2018 7:09 am
Forum: ESP32 Support
Topic: ESP32
Replies: 37
Views: 12518

Re: ESP32

I'm a competent esp32 developer, and an ardupilot developer ( runs on chibios), and would love to see chibios ported to esp32, but the low-level bring-up is beyond my skills to do on my own... is there a chat channel where we could try as a group to do this..?

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