Search found 499 matches

by ESP_Sprite
Thu Mar 23, 2017 6:01 am
Forum: ESP32 SDK
Topic: menuconfig - eplanation of menu items appreciated
Replies: 3
Views: 41

Re: menuconfig - eplanation of menu items appreciated

You have seen the 'help' option in Menuconfig? For every item in esp-idf, if you use up/down to move to that item to select it and then use left/right to highlight the 'Help' button on the bottom and press enter, you get a screen with a few lines explaining what the option does. Is that what you wan...
by ESP_Sprite
Thu Mar 23, 2017 5:58 am
Forum: ESP32 SDK
Topic: SPI Usage
Replies: 6
Views: 392

Re: SPI Usage

No, not yet, sorry.
by ESP_Sprite
Thu Mar 23, 2017 5:55 am
Forum: General Discussion
Topic: [Q] github add Contributor License Agreement
Replies: 4
Views: 59

Re: [Q] github add Contributor License Agreement

Still, legally I don't think we will be able to accept that. From memory, the contributor license agreement essentially grants a perpetual license between the two parties involved to distribute the code; it does not transfer the copyright of the code itself. I'm not sure if being a licensee also all...
by ESP_Sprite
Wed Mar 22, 2017 10:05 am
Forum: General Discussion
Topic: [help]spi pin number
Replies: 3
Views: 59

Re: [help]spi pin number

GPIO 8 is reserved for the SPI flash. If you re-define this GPIO as a general-purpose SPI pin, running code from flash will break. Use a different GPIO.
by ESP_Sprite
Wed Mar 22, 2017 4:03 am
Forum: General Discussion
Topic: Third party IDF components list
Replies: 1
Views: 228

Re: Third party IDF components list

As Rudi pointed out: there's a CAN driver here: https://github.com/ThomasBarth/ESP32-CAN-Driver
by ESP_Sprite
Wed Mar 22, 2017 4:02 am
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 55
Views: 5117

Re: About the CAN controller.

Rudi: That would be the choice of the author of that driver. If he wants, he can file a pull request in the esp-idf github and we'll check the code quality and such and if that's OK, we will integrate it into esp-idf. If he prefers to have the driver as a separate component, that is fine too.
by ESP_Sprite
Wed Mar 22, 2017 3:44 am
Forum: ESP32 SDK
Topic: Deep sleep wake up time
Replies: 5
Views: 70

Re: Deep sleep wake up time

Depending on the amount of code, you may use the deep sleep wake-up stub for this. This is essentially 8KiB of RTC memory where you can stash code that *immediately* gets executed when the CPU wakes from deep sleep. I'm not sure if 8KiB is enough to hold whatever you want to execute plus the data it...
by ESP_Sprite
Wed Mar 22, 2017 3:40 am
Forum: General Discussion
Topic: [Q] github add Contributor License Agreement
Replies: 4
Views: 59

Re: [Q] github add Contributor License Agreement

So, if I understand it correctly, you want others to be able to push to *your* repo to have to sign the contributors license agreement, so you can then push from your to *our* repo without needing them to sign the contributors license agreement that is connected to *our* repo? Apart from technical d...
by ESP_Sprite
Wed Mar 22, 2017 3:33 am
Forum: ESP32 SDK
Topic: Multiple flash chips on same the SPI line
Replies: 6
Views: 65

Re: Multiple flash chips on same the SPI line

Ah, sorry, I thought you meant RAM, not flash. Yes, the ESP32 supports up to 16MiB of flash in one IC. If you have multiple flash ICs, as far as I am aware you can memory map only one, the rest needs to be controlled using the generic SPI DMA drivers.
by ESP_Sprite
Tue Mar 21, 2017 6:52 am
Forum: ESP32 SDK
Topic: Multiple flash chips on same the SPI line
Replies: 6
Views: 65

Re: Multiple flash chips on same the SPI line

You can add an arbitrary (well, with the current driver, 3 per host) SPI memory devices to the ESP32 and you can access them using DMA transfers. However, only one device can be memory mapped, and you're limited to 4MiB of memory mapped memory. Also, at the moment memory mapping is not supported in ...

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