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by ESP_Sprite
Sun Oct 16, 2016 3:45 am
Forum: Hardware
Topic: Help in understanding the address mapping
Replies: 4
Views: 5410

Re: Help in understanding the address mapping

Aye. Which is a PITA for a bunch of my projects, and the map-the-entire-4MB is an evil workaround, so I'd really like to get this mmu driver working in esp-idf. With a bit of luck, I can work on it next week.
by ESP_Sprite
Sat Oct 15, 2016 8:39 am
Forum: Hardware
Topic: Help in understanding the address mapping
Replies: 4
Views: 5410

Re: Help in understanding the address mapping

The answer is that there is an MMU that basically can be configured for every 64K chunk (a page) in the address ranges you mention, to get you the data that resides at a certain 64K chunk in flash. I'm editting the technical reference chapter for the MMU right now, as soon as we release that, a lot ...
by ESP_Sprite
Thu Oct 13, 2016 2:05 pm
Forum: General Discussion
Topic: MD5 Error while Flashing the boot.bin to ESP32
Replies: 22
Views: 16572

Re: MD5 Error while Flashing the boot.bin to ESP32

The size is because esptool compresses the data first and the esp32 decompresses it on the fly. The size you see is the compressed size. Kind-of misleading, I agree.
by ESP_Sprite
Thu Oct 13, 2016 1:27 am
Forum: ESP32 IDF
Topic: [Solved] Newlines and logging output with printf ...
Replies: 4
Views: 4128

Re: Newlines and logging output with printf ...

it's a known bug for which we pushed a fix yesterday. Can you update your esp-idf and try again?
by ESP_Sprite
Mon Oct 10, 2016 4:35 pm
Forum: Showcase
Topic: NES emulator on an ESP32
Replies: 23
Views: 20102

NES emulator on an ESP32

Here's a new thing: a NES emulator for the ESP32. It's a proof of concept, does not have sound and the display driver is kinda hackish leading to a frame rate that is slightly sub-par, but it actually is playable. Video demonstrating it and some of the reasoning around it is here: https://youtu.be/y...
by ESP_Sprite
Sun Oct 09, 2016 4:54 am
Forum: ESP32 IDF
Topic: [Answered] Maximum number of open sockets supported
Replies: 4
Views: 6683

Re: Maximum number of open sockets supported

I can't comment on what exactly LWIP (which is the TCP/IP stack we currently use) does when it hits the socket limit (except for returning -1 on a socket() call). I do know that for the ESP8266, 4 also was the minimum, and I've not heard many complaints about that. I'm not sure why 16 is chosen as t...
by ESP_Sprite
Sun Oct 09, 2016 1:30 am
Forum: Hardware
Topic: strapping Pin clarification
Replies: 14
Views: 12305

Re: strapping Pin clarification

Yes. THe default pullups and -downs are documented in the pin list document: https://espressif.com/sites/default/fil ... t_en_0.pdf
by ESP_Sprite
Sat Oct 08, 2016 1:56 pm
Forum: Hardware
Topic: SPI as only input pins in slave mode
Replies: 11
Views: 6462

Re: SPI as only input pins in slave mode

Yes, it comes down to that, more or less. If you need 80MHz, you have some freedom in mapping the peripherals; see page 4 (table IO_MUX) of http://www.espressif.com/sites/default/files/documentation/esp32_chip_pin_list_en.pdf . If you can't make it work with these pins, you can route them through th...
by ESP_Sprite
Sat Oct 08, 2016 6:06 am
Forum: ESP32 IDF
Topic: Raspberry Pi JTAG
Replies: 4
Views: 4687

Re: Raspberry Pi JTAG

Thanks for updating. And weird; afaik there's nothing that should make debugging using the Pi impossible. We have at least building a toolchain for the Pi on our list of things to do: I'll also see if I can investigate what went wrong with your setup and perhaps create a known-to-work setup recipe.
by ESP_Sprite
Sat Oct 08, 2016 1:24 am
Forum: General Discussion
Topic: Location for cross platform source code
Replies: 2
Views: 2151

Re: Location for cross platform source code

Yes, you should be able to do this. Point the environment variable EXTRA_COMPONENT_DIRS to a directory containing your out-of-tree components and they should be included in the project as if they were located in the components/ subdirectory of your project. Ah, that does assume the out-of-tree stuff...

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