ESP32 Forum

ESP32 Official Forum
https://esp32.com/

I2C buffer memory requirements

https://esp32.com/viewtopic.php?t=44846

Page 1 of 1

I2C buffer memory requirements

Posted: Wed Mar 12, 2025 11:19 am
by floitsch_toit
When using I2C operations like 'i2c_master_transmit', 'i2c_master_transmit_receive', or 'i2c_master_receive' are there any requirements on the buffers?

Can they be in SPIRAM, or do they need to be internal?

Re: I2C buffer memory requirements

Posted: Wed Mar 12, 2025 1:50 pm
by MicroController
No requirements there. Data is moved to and from the I2C peripheral by the CPU, so data can reside in internal or external RAM, or even in flash.
All times are UTC
Page 1 of 1
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/