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854127a57c
This commit updates the USB Host stack to use the USB PHY driver. The
USB PHY and the OTG Controller should now both be setup/deleted using
usb_new_phy() and usb_del_phy() respectively.
- The hcd_install() now expects the USB PHY and OTG Contorller to be
already setup before it is called
- usb_host_install() now has an option to skip calling usb_del_phy() if
the user wants to setup their own USB PHY (e.g., in the case of using
and external PHY).
- CDC-ACM and MSC examples/test updated to use internal PHY
Closes https://github.com/espressif/esp-idf/issues/8061
| Supported Targets | ESP32-S2 | ESP32-S3 |
|---|
USB Mass Storage Class example
Overview
This example demonstrates usage of Mass Storage Class to get access to storage on USB memory stick. Example caries out read and write file operations, as USB storage is mounted to Virtual filesystem.
Hardware Required
- Development board with USB capable ESP SoC (ESP32-S2/ESP32-S3)
- A USB cable for Power supply and programming
- A USB memory stick
Common Pin Assignments
If your board doesn't have a USB A connector connected to the dedicated GPIOs, you may have to DIY a cable and connect D+ and D- to the pins listed below.
ESP BOARD USB CONNECTOR (type A)
--
| || VCC
[GPIO19] ------> | || D-
[GPIO20] ------> | || D+
| || GND
--
Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
idf.py -p PORT flash monitor
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
Example Output
...
I (274) cpu_start: Starting scheduler on PRO CPU.
I (339) APP: Waiting for USB stick to be connected
Device info:
PID: 0x5678
VID: 0xFFFF
iProduct: Disk 2.0
iManufacturer: USB
iSerialNumber: 92072836B2589224378
I (719) APP: Writing file
I (749) APP: Reading file
I (749) APP: Read from file: 'Hello World!'
I (759) APP: Done