Hello all can someone help me to understand what is happening during the ESP32 start? lets talk about the IO33 i wrote a simple code to set IO33 to output pin and set high level after start. but on the osciloscope I can see this: picture in attachment I do not understand why the pin goes to 2V for 8...

thanks

Hi there

is there way how to clear the queue ? I mean , I wand to delete all items in queue.

Thanks

Roman

Hi there I am trying to upload the FW through the JTAG adapter ( FTDI 2232hl) with the MS code and espressif add-on. I am able to upload new FW to ESP from the command line with openocd -f board/esp32-wrover-kit-3.3v.cfg -c "program_esp filename.bin 0x10000 verify exit" so wiring must be ok and JTAG...

Check if your GPIO library refers to the physical pin numbers or the IO numbers, that's always something that can be mixed up. (If you were telling it to toggle physical pin 13 and you're probing on IO13, they're different pins). Maybe search for some other SPI examples, see if you can get MOSI to ...

I wrote a small program which has to test the MOSI(IO13 pin in my case) pin and I can see there is not ticking on IO13 #define PIN_NUM_MOSI 13 void app_main() { gpio_reset_pin(PIN_NUM_MOSI); /* Set the GPIO as a push/pull output */ gpio_set_direction(PIN_NUM_MOSI, GPIO_MODE_OUTPUT); while(1) { /* Bl...

hmm, data ready pin is normally at high level .. no that is ok ... but no outgoing data on data lines :/

yes :) you are right :) I have added some code ( copy-paste from LCD example) void lcd_cmd(spi_device_handle_t spi, const uint8_t cmd) { esp_err_t ret; spi_transaction_t t; memset(&t, 0, sizeof(t)); //Zero out the transaction t.length=8; //Command is 8 bits t.tx_buffer=&cmd; //The data is the cmd it...

Hi there I am starting with ESP32 I am trying to connect ESP32 with ADC1120 over SPI. But without success so far. When I probe the SCLK pin with an oscilloscope I can see there is not any clock signal. I am using a GPIO matrix to route the signals. I have 5 LEDs on board so I use them as debug signa...