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by ESP_Sprite
Tue May 26, 2020 7:06 am
Forum: General Discussion
Topic: Recommended OS
Replies: 1
Views: 147

Re: Recommended OS

ESP-IDF (based on FreeRTOS) is the SDK we recommend, as we're actively developing it and the ESP series is it's main target.
by ESP_Sprite
Sun May 24, 2020 7:49 am
Forum: Hardware
Topic: UART Flow Control
Replies: 7
Views: 1047

Re: UART Flow Control

Support like this is entirely on a as-needed basis, imo. I can write an entire book about hardware handshaking and then find out the other guy only needs a little bit of it (or none at all as they might have an X/Y problem), but I'd rather just help people solve the problem at hand. If you need to k...
by ESP_Sprite
Sat May 23, 2020 12:52 pm
Forum: ESP32 IDF
Topic: Measure the duration of the wifi ISR
Replies: 1
Views: 98

Re: Measure the duration of the wifi ISR

What is your purpose of measuring this? The 'WiFi ISR' is pretty much wrapped up in the WiFi driver itself, so it's probably not that useful to know...
by ESP_Sprite
Sat May 23, 2020 12:50 pm
Forum: Hardware
Topic: UART Flow Control
Replies: 7
Views: 1047

Re: UART Flow Control

You could also, y'know, ask your own question related to this instead of hoping to glance information from the failures of others?
by ESP_Sprite
Fri May 22, 2020 7:33 am
Forum: Hardware
Topic: ESP32D2WD SPI and JTAG pin with MUX
Replies: 4
Views: 203

Re: ESP32D2WD SPI and JTAG pin with MUX

Mod note: Merged two duplicate topics.
by ESP_Sprite
Thu May 21, 2020 8:07 am
Forum: ESP32 Arduino
Topic: I2C and UART parallel
Replies: 1
Views: 129

Re: I2C and UART parallel

Yes. You should even be able to do both on the same core.
by ESP_Sprite
Thu May 21, 2020 8:06 am
Forum: ESP32 IDF
Topic: ESP32 hanging forever
Replies: 4
Views: 245

Re: ESP32 hanging forever

Nothing hardware-wise comes to mind that could cause a symptom like this, sorry... most I can come up with is that you might be able to check the 40MHz crystal, see if it oscillates when the chip is hung like that.
by ESP_Sprite
Thu May 21, 2020 8:03 am
Forum: ESP32 IDF
Topic: Can't program ESP-WROVER-B: Invalid head of packet
Replies: 1
Views: 117

Re: Can't program ESP-WROVER-B: Invalid head of packet

Hard to say, except that something is going wrong in the serial communication... perhaps a ground wire came loose or something?
by ESP_Sprite
Thu May 21, 2020 8:01 am
Forum: Hardware
Topic: Where is Bluetooth?
Replies: 4
Views: 227

Re: Where is Bluetooth?

Wrt modules: It depends on the chip inside them. There are older modules not recommended for new design, but that's mostly because they are using an obsolete PCB design, IC packaging, etc. There will always be equivalent, current variations of them (at least for the 12 year minimum that we support t...
by ESP_Sprite
Wed May 20, 2020 1:12 pm
Forum: ESP32 IDF
Topic: Problem with converting arduino SPI into IDF
Replies: 12
Views: 696

Re: Problem with converting arduino SPI into IDF

Yes. You take a scope or LA and stick it on the SPI pins and see if that looks correct.

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