Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

input_delay_phase not available on EMMC driver config #11125

Open
1 task done
marchingband opened this issue Mar 15, 2025 · 0 comments
Open
1 task done

input_delay_phase not available on EMMC driver config #11125

marchingband opened this issue Mar 15, 2025 · 0 comments
Labels
Type: Feature request Feature request for Arduino ESP32

Comments

@marchingband
Copy link

marchingband commented Mar 15, 2025

Board

ESP32-S3

Device Description

DevKitC

Hardware Configuration

NA

Version

v3.1.2

IDE Name

Arduino IDE

Operating System

NA

Flash frequency

NA

PSRAM enabled

yes

Upload speed

NA

Description

Because the mux offsets timing, many eMMCs need the phase to be adjusted, to obtain high transfer speeds.
see espressif/esp-idf#12952

in esp-idf I can do :

sdmmc_host_t host = SDMMC_HOST_DEFAULT();
host.input_delay_phase = SDMMC_DELAY_PHASE_1; 

Which will work at high speed with my eMMC, which is KLM8G1GETF-B041.

In Arduino this is not possible, so many eMMCs will not work at high speed, and with DDR.

Would it be possible to add this property to the next release?

thank you!

Sketch

NA

Debug Message

NA

Other Steps to Reproduce

NA

I have checked existing issues, online documentation and the Troubleshooting Guide

  • I confirm I have checked existing issues, online documentation and Troubleshooting guide.
@marchingband marchingband added the Status: Awaiting triage Issue is waiting for triage label Mar 15, 2025
@Jason2866 Jason2866 added Type: Feature request Feature request for Arduino ESP32 and removed Status: Awaiting triage Issue is waiting for triage labels Mar 15, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
Type: Feature request Feature request for Arduino ESP32
Projects
None yet
Development

No branches or pull requests

2 participants