Install the driver

https://www.silabs.com/products/develop ... cp-drivers

and look in the device manager which COM port it uses

Thanks @WiFive The following pseudo code will do it #include "soc/cpu.h" #include "esp_clk.h" uint32_t cycle_counts; uint32_t cycle_counts_last = 0; int clock_freq = esp_clk_cpu_freq(); RSR(CCOUNT, cycle_counts); printf("Diff: %llu nsec\n", ((uint64_t)(cycle_counts - cycle_counts_last)*1000000000) /...

Thanks!

Hello, I know that with esp_timer_get_time() I can get a timestamp on µsec base. Is there an even better time base resolution possible? Idea behind: Build a low budget logic analyzer. For this the edges of a signal must have very exact timestamps. An other question: What is the highest frequency on ...

Hello, at the moment my project (nearly finished) is a Wake On LAN repeater. Problem: Most routers do not allow to send a broadcast message in the internal network from outside. Solution: The router forwards an UDP port to ESP32. The ESP32 validates the UDP packet and sends the broadcast message. Al...

Thanks !

I have build a web server on ESP32 and downloading files will be done in different tasks for each file

Hello,

is the SD access (via SPI) and the vsfatfs threadsafe ? So can I open / read / write on file from on thread and ano ther file from an other thread ?
IN lwip there are the functions with _r for being threadsafe.

Reiner

hello,

I have a general question about SPI modes.
Is there a difference in SPI, HSPI and VSPI, can I use every 4 pins for SPI (e.g. connecting a SD card or a display).
Or are there preferred pins for this (other routing inside the chip)

Thanks
Reiner

Hello,

how exactly works
esp_wifi_set_ps(WIFI_PS_MODEM)

As far as I understood it sleeps the WiFi and wake up periodically.

What happens when an UDP packet arrives during the sleep phase - I think it get lost ?
Correct ?

Reiner