Hello,

I have this problem when I use Uart 2. It starts reading fine, but in the middle it starts reading strange characters.
using an FTD1232 interface read everything correctly.


Serial2.setRxBufferSize(4096);
Serial2.setTimeout(512);
delay(100);
Serial2.begin(115200, SERIAL_8N1, RX_PIN, TX ...

Hi ligteltelecom,

You must use these two pins for the frequency meter to work.
#define PCNT_INPUT_CTRL_IO GPIO_NUM_35 // Set Pulse Counter Control GPIO pin - HIGH = count up, LOW = count down
#define OUTPUT_CONTROL_GPIO GPIO_NUM_32 // Timer output control port - GPIO_32

Why don't you want to ...

Hi, when I set pcnt_config.ctrl_gpio_num = -1, to not use ports 35 and 32 it becomes inaccurate. example I will measure 500khz it shows 550khz

Can someone help me?

Hello everyone, can I use i2s with callback? to send the data within this callback?


I mean, that depends on the callback?

Can you step back a bit and give us an overview of what you're trying, rather than posting one-off questions to the forum that we can't really answer without context ...

Bitbanging on an ESP32 is generally not a good idea and it's unlikely you'll be able to do it at 25MHz. Are you absolutely 200% sure there's not a peripheral in the ESP32 (e.g. I2S, SPI, RMT, ...) that can be convinced to generate that protocol for you?


Hello everyone, can I use i2s with ...

What is the maximum frequency I can achieve using this function?
esp_timer_start_periodic()

Hi guys. I'm not using a loop inside the callback. but I need to generate frequency between 32khz - 25mhz. within this callback I will send the bits I need

Hello, is it possible to generate clock and date between 32khz and 10mhz.
I tried use, but the maximum I could reach was 10khz

#define DT 0.0001
esp_timer_start_periodic(timer1Handle, (int)(1000 * 1000 * DT));

I dont want use LEDC for generate this clock.

Anyone help me how solve this issue?
Need setting config -> FreeRTOS -> Tick rate (hz) ?
https://www.freertos.org/FreeRTOS_Suppo ... 4ac4j.html

Hi Guys

How can i solve this issue below:
i got erro here portTICK_PERIOD_MS
Code:

vTaskDelay(500 / portTICK_PERIOD_MS);

Erro:

the identifier "CONFIG_FREERTOS_HZ" is not definedC/C++(20)