Search found 563 matches

by ESP_Sprite
Fri Apr 28, 2017 2:09 am
Forum: General Discussion
Topic: same sdkconfig but different memory layouts
Replies: 2
Views: 37

Re: same sdkconfig but different memory layouts

ESP-IDF gives back memory used for BT Classic to the heap pool when Classic is not needed, but only does this since pretty recent ESP-IDF versions. One of the reasons for what you're seeing is that one of the examples is compiled with an old esp-idf version. Run make clean && make flash in b...
by ESP_Sprite
Fri Apr 28, 2017 2:04 am
Forum: General Discussion
Topic: Sleep timer motion sensitivity
Replies: 3
Views: 65

Re: Sleep timer motion sensitivity

What hardware did you use, by the way? The only things I can think of that are sensitive to motion that would be found on a normal PCB are ceramic caps; maybe they do something weird on your PCB triggering something in the ESP32.
by ESP_Sprite
Wed Apr 26, 2017 7:42 am
Forum: ESP32 Arduino
Topic: Direct IO Port Manipulation
Replies: 3
Views: 62

Re: Direct IO Port Manipulation

Ah yes, using OUT0 is also an option, but it's usually not recommended because it's not atomic.
by ESP_Sprite
Wed Apr 26, 2017 2:05 am
Forum: ESP32 Arduino
Topic: Direct IO Port Manipulation
Replies: 3
Views: 62

Re: Direct IO Port Manipulation

The GPIOs have a configuration register each, but the value is set using 4 32-bit registers, namely GPIO_OUT_W1TS/W1TC and GPIO_OUT1_W1TS/W1TC. You use the GPIO_OUT_* register to modify GPIO0-31, you use GPIO_OUT1_* to modify GPIO32 and higher. When you write an 1 in a bit in a W1TC register, you'll...
by ESP_Sprite
Wed Apr 26, 2017 1:51 am
Forum: ESP32 SDK
Topic: LCD SPI & I2S - Serial & Parallel - Speed vs Ressources
Replies: 2
Views: 75

Re: LCD SPI & I2S - Serial & Parallel - Speed vs Ressources

FYI, if you use the esp-idf SPI driver, the transfer should be done entirely in DMA, freeing up the CPU to do other tasks. We're aware of the 4K limitation in that driver, and I expect a MR that amongst others fixes this limitation to come through within a few days. Wrt 8-bit LCD mode: there used to...
by ESP_Sprite
Wed Apr 26, 2017 1:35 am
Forum: General Discussion
Topic: when use ESP-WROVER-KIT,always getting the message"Localhost:3333:Connection timed out."
Replies: 13
Views: 456

Re: when use ESP-WROVER-KIT,always getting the message"Localhost:3333:Connection timed out."

Sorry, that's not possible. The SDMMC and JTAG pins conflict, so if you use the SDMMC pins to drive a SD-card, you cannot use JTAG. On the WROVER at least, the hardware does not interfere, so if you do not use SDMMC, JTAG works fine.
by ESP_Sprite
Tue Apr 25, 2017 6:24 am
Forum: General Discussion
Topic: EZSBC esp32 dev board spi pins?
Replies: 12
Views: 311

Re: EZSBC esp32 dev board spi pins?

I don't do too much with Arduino, but the plain esp-idf has an spi-master example controlling an ILI9341 LCD. Maybe you can use that to see if your hardware works?
by ESP_Sprite
Tue Apr 25, 2017 6:22 am
Forum: ESP32 Arduino
Topic: Laboris ESP32_new_spi_master_example help
Replies: 6
Views: 190

Re: Laboris ESP32_new_spi_master_example help

Wrt Arduino, I can't help you, I fear. If you just want to get something to work, however, there's a SPI-master example in the esp-idf that controls an ILI9341 LCD. Maybe you can use that to check your hardware.
by ESP_Sprite
Tue Apr 25, 2017 2:14 am
Forum: ESP32 SDK
Topic: 100microsecond timer in esp32
Replies: 3
Views: 120

Re: 100microsecond timer in esp32

You can probably use any of the timer sources for this... one of the timer groups, the LED PWM controller timers, maybe even the built-in Xtensa timers if you do not need clock switching... For what exactly do you require this, however? It might be that using a dedicated hardware peripheral is more ...
by ESP_Sprite
Tue Apr 25, 2017 2:11 am
Forum: ESP32 Arduino
Topic: Laboris ESP32_new_spi_master_example help
Replies: 6
Views: 190

Re: Laboris ESP32_new_spi_master_example help

What problem do you have that causes you to need to disable HAL locks, even if you do not even know what they are?

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