Search found 2830 matches

by ESP_Sprite
Mon Sep 09, 2019 3:29 am
Forum: General Discussion
Topic: [Q/BUG] ets_printf("\r") gives me never only \r (0x0D )
Replies: 3
Views: 263

Re: [Q/BUG] ets_printf("\r") gives me never only \r (0x0D )

That is technically true, but it doesn't mean you can't change its behaviour. From what I can see here (but the code I have here is not exactly the same as the ESP32 version, so take with a grain of salt.) ets_printf uses a callback function to actually output characters, and by default it is set to...
by ESP_Sprite
Sat Sep 07, 2019 3:59 am
Forum: ESP32 IDF
Topic: RTC Data reset/lost after sleep
Replies: 1
Views: 88

Re: RTC Data reset/lost after sleep

Can you see if the ESP32 successfully gets out of deep sleep all the time? Your RTC erasure may be caused by a reset for some reason.
by ESP_Sprite
Fri Sep 06, 2019 1:39 am
Forum: Report Bugs
Topic: taskENTER_CRITICAL Guru meditation error StoreProhibited
Replies: 1
Views: 1150

Re: taskENTER_CRITICAL Guru meditation error StoreProhibited

Hard to say, specifically without source code, but it looks like something is overwriting a pointer. Look at EXECVADDR in both examples; there should be an address (0x3Fxxxxxx ) in there, but there seems to be data in there. Can you try enabling heap debugging / canaries, see if that turns up someth...
by ESP_Sprite
Fri Sep 06, 2019 1:36 am
Forum: General Discussion
Topic: ESP32 boot
Replies: 3
Views: 387

Re: ESP32 boot

Not that I'm aware of.
by ESP_Sprite
Fri Sep 06, 2019 1:34 am
Forum: ESP32 IDF
Topic: [JTAG] [openocd] Error: DIR instruction generated an overrun!
Replies: 2
Views: 361

Re: [JTAG] [openocd] Error: DIR instruction generated an overrun!

Can you try reducing your jtag speed? Perhaps your cables are too long or prone to noise.
by ESP_Sprite
Fri Sep 06, 2019 1:29 am
Forum: General Discussion
Topic: LTS - Long Term Support for Software ( example ESP-IDF )
Replies: 2
Views: 448

Re: LTS - Long Term Support for Software ( example ESP-IDF )

This is new for 3.3, so there are no other documents describing this timeline. Non-LTS releases will be unsupported earlier, we will make an announcement before that happens. It's best to assume that an unsupported release will not receive any fixes from Espressif anymore, although we may still deci...
by ESP_Sprite
Thu Sep 05, 2019 3:10 am
Forum: ESP32 IDF
Topic: W (338406) wifi: mem fail : ESP32-WROVER-B
Replies: 7
Views: 656

Re: W (338406) wifi: mem fail : ESP32-WROVER-B

200 connections at full speed... to be honest, I think that's a fair bit outside of the normal use case for our chips. I'm not 100% sure as I'm not a WiFi guy, but he thing with WiFi and other connections is that the memory they need isn't all capable of being allocated in external memory, as the ES...
by ESP_Sprite
Thu Sep 05, 2019 3:02 am
Forum: ESP32 IDF
Topic: can esp32 program receive serial text via usb flashing cable?
Replies: 2
Views: 180

Re: can esp32 program receive serial text via usb flashing cable?

Yes, the 'usb flashing cable' you have normally ends up in an usb-to-serial converter on your devboard (separate chip from the ESP32), which is connected to UART0 of the ESP32. All in all, you can just access it like any other serial port.
by ESP_Sprite
Thu Sep 05, 2019 2:58 am
Forum: Hardware
Topic: Recommend some H Bridge chip with low voltage drop please
Replies: 3
Views: 318

Re: Recommend some H Bridge chip with low voltage drop please

Are you 100% sure you only need a few mA, and never more than that? In that case, you can even just use 2 GPIOs of the ESP32; just make sure to have good flyback protection. However, a BJT-based H-bridge, if built correctly, should also work. You said you used 2N2222 transistors, however, a proper H...
by ESP_Sprite
Thu Sep 05, 2019 2:55 am
Forum: Documentation
Topic: Documentation Requests/Feedback
Replies: 65
Views: 53348

Re: Documentation Requests/Feedback

Chalk another request for the ISA docs. I can get the ISA docs without an NDA for x86, amd64, ARM, and AVR. What's the hold up? The fact that it's not ours to release. We use the Xtensa architecture, which is owned by Cadence, and we can't freely release their ISA description as we're under an NDA.

Go to advanced search