Search found 3 matches

by goldenDragon
Thu Nov 07, 2019 11:41 pm
Forum: Hardware
Topic: Connecting esp32 RMII to another MCU's RMII
Replies: 0
Views: 177

Connecting esp32 RMII to another MCU's RMII

Is it possible to connect esp32 ethernet RMII to another MCU's ethernet RMII without having to put a PHY chip in between? We are using SPI as an interface between a PIC32 and the ESP32, but looking forward we might want to take advantage of ethernet's faster speeds. Both of the MCUs have RMII interf...
by goldenDragon
Mon Feb 25, 2019 8:30 pm
Forum: ESP32 IDF
Topic: I2S_read missing bytes from external ADC
Replies: 0
Views: 470

I2S_read missing bytes from external ADC

Hi all, I am trying to interface the ESP32 DevkitC to an ADC (ADS127L01) that is currently running on another custom PCB board. I have the required signals of SCK (clock), WS (word select), and SD (data) for the I2S interface jumped over from the ADC to the esp32. The esp32 is a slave and is only re...
by goldenDragon
Tue Jan 29, 2019 5:32 pm
Forum: ESP32 IDF
Topic: Store I2S bytes in different order
Replies: 1
Views: 464

Store I2S bytes in different order

Hi, I am using I2S to retrieve data from an ADC. Each sample is 32 bits and comes MSB first with the frame sync frequency equaling the ADC sampling speed. The two most significant bytes come in as the frame sync signal is high and then the two least significant bytes come in as frame sync is low. Th...

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