Search found 2672 matches

by ESP_Sprite
Thu Jun 20, 2019 7:24 am
Forum: Hardware
Topic: ESP32: Power On status of the pins during power-on/ boot up process.
Replies: 6
Views: 114

Re: ESP32: Power On status of the pins during power-on/ boot up process.

18 and 19 aren't used by the chip on boot as far as I know. Do you have pullups/downs on the gates of your mosfets?
by ESP_Sprite
Thu Jun 20, 2019 5:05 am
Forum: Showcase
Topic: HC-SR04 using RMT - very fast
Replies: 10
Views: 2424

Re: HC-SR04 using RMT - very fast

It possibly needs

Code: Select all

 rmt_config_t rmt_rx;
changed into

Code: Select all

 rmt_config_t rmt_rx={0};
.
by ESP_Sprite
Thu Jun 20, 2019 4:57 am
Forum: ESP32 IDF
Topic: switch spi mode at run time
Replies: 1
Views: 20

Re: switch spi mode at run time

You can set the SPI mode per device if you use the ESP-IDF SPI driver. The driver will handle switching for you.
by ESP_Sprite
Thu Jun 20, 2019 4:55 am
Forum: ESP32 IDF
Topic: High Level Interrupt on external GPIO Interrupt
Replies: 15
Views: 1384

Re: High Level Interrupt on external GPIO Interrupt

Filzek: Sorry, I have no idea what you're on about. Perhaps you want to start a new topic for this, with a bit more information?
by ESP_Sprite
Thu Jun 20, 2019 4:51 am
Forum: Hardware
Topic: ESP32: Power On status of the pins during power-on/ boot up process.
Replies: 6
Views: 114

Re: ESP32: Power On status of the pins during power-on/ boot up process.

You could try to hack the bootloader to set the GPIOs as soon as possible.... but that would be a workaround at best. What GPIOs are your mosfets connected to? Can you move them to IOs that aren't used during boot, and add a pull-up / pull-down resistor to force them to the correct level around that...
by ESP_Sprite
Thu Jun 20, 2019 4:42 am
Forum: Hardware
Topic: Using LEDC for generating two pulses
Replies: 6
Views: 138

Re: Using LEDC for generating two pulses

Sure, but the API doesn't look at the name of the variable, it looks at the number stored in it to figure out which channel to configure.
by ESP_Sprite
Thu Jun 20, 2019 4:38 am
Forum: General Discussion
Topic: watchdog test code
Replies: 1
Views: 65

Re: watchdog test code

Example test code is not suddenly going to appear when you post your question for the x'th time. We still may be able to help you, but we'd need a lot more information on what you want to use it for.
by ESP_Sprite
Thu Jun 20, 2019 4:36 am
Forum: General Discussion
Topic: Is eternal spinlock possible?
Replies: 4
Views: 103

Re: Is eternal spinlock possible?

Please do not do that. ESP-IDF is not made to have interrupts disabled for a long time while you're bitbanging data; the watchdog timer is there for a reason. Have you tried using one of the many, many peripherals the ESP32 has to do stuff like this fully automatically instead?
by ESP_Sprite
Wed Jun 19, 2019 7:29 am
Forum: General Discussion
Topic: Is eternal spinlock possible?
Replies: 4
Views: 103

Re: Is eternal spinlock possible?

Normally, this should not reboot. Can you give a bit more context: the SDK you use, the actual code that reboots?
by ESP_Sprite
Wed Jun 19, 2019 2:28 am
Forum: ESP32 Arduino
Topic: ESP8266 reset (wdt reset)
Replies: 2
Views: 64

Re: ESP8266 reset (wdt reset)

Note that this is a forum for the ESP32, not the ESP8266. You may have better results asking somewhere else instead.

Go to advanced search