Search found 3 matches

by Aircraft
Wed Feb 10, 2021 5:53 am
Forum: Hardware
Topic: ULP pulse counter not working properly
Replies: 0
Views: 1491

ULP pulse counter not working properly

Hello! I'm trying to use esp32 ulp to count pulses of an input signal on one of rtc gpio's. I'm using the example code from ESP-IDF so I assume it should work properly. However, it is not working to me. It counts more edges in the signal than it should. I thought it was a noise problem in the signal...
by Aircraft
Tue Sep 22, 2020 2:30 am
Forum: General Discussion
Topic: CPU Clock source and frequency
Replies: 0
Views: 1803

CPU Clock source and frequency

Hello!!! I'm trying to reduce esp32 cpu frequency in order to lower power consumption. If PLL Clock Source from internal oscillator is used I can reduce CPU frequency till 80 MHz, with freeRTOS support and project configuration found in menuconfig options. However, I want to use the 40 MHz On-Chip C...
by Aircraft
Mon Aug 31, 2020 9:54 pm
Forum: General Discussion
Topic: I2S Built-in ADC Mode Clock
Replies: 0
Views: 1384

I2S Built-in ADC Mode Clock

Hello to everyone!!!. I'm trying to use the I2S0 Module to receive data from the on-chip ADC. I'm new to the ESP32 so I'm not familiarized with the use of I2S controllers nor the internal ADC. I've already used the I2S0 Module to receive data from an external ADC using APLL clock source for Master C...