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felis / USB_Host_Shield_2.0

Revision 2.0 of USB Host Library for Arduino.
https://chome.nerpa.tech
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OSC did not start on DOIT ESP32 Dev Kit V1 #511

Open Mikegyver opened 4 years ago

Mikegyver commented 4 years ago

hi felis. i tried to use USB host shield with DOIT ESP32 Dev Kit V1. i did the connection as in the commit a7f67cdfc6a1b0fde114cad4771ae6fe8060b104

GPIO5 : SS, GPIO17 : INT, GPIO18 : SCK, GPIO19 : MISO, GPIO23 : MOSI while for the RST i connected it to EN pin of the DOIT ESP32 Dev Kit V1. for the power, 5V is supplied only to the VBUS (the MAX3421E is supplied by 3.3V)

FYI, i using USB_desc example code however, on my serial monitor showing OSC did not start. below is the screenshot of my serial monitor.

esp32 serial monitor

i'm using the following usb host shield.

esp32

at the first place i thought the usb host shield might be broken or damaged. but later i try with arduino nano. and it works fine with the nano. on my serial is shown description of the USB device which is attached to it.

nano serial monitor

below is the picture of arduino nano connected to the usb host shield.

nano

i have been trying different approach like supplying direct 3.3V to the reset pin of the USB host shield and tried toggle high to low and back to high to one of the dev kit pin to the reset pin of the usb host shield but yet still got same OSC did not start.

hope u can help me out regarding this issue. thanks in advance, felis.

best regards.

tmk commented 4 years ago

I don't[Edited] have any experience of ESP32, so this is just my thought.

Full-size USB host shield is designed for 5V board while ESP32 is powered with 3.3V and its IO is not 5V tolerant. I'm not sure this setup is safe. Especially GPIO18(INT) and GPIO19(MISO) pin will be driven with 5V by level shifter, this may give the pins damage or just won't work, I guess. If the pins are the causes you may want to connect the pins directly to MAX3421e without level shifter.

Or just try to give 3.3V power to 5V pin on the Shield, this will make the pins driven 3.3V instead of 5V.

Mikegyver commented 4 years ago

I have any experience of ESP32, so this is just my thought.

Full-size USB host shield is designed for 5V board while ESP32 is powered with 3.3V and its IO is not 5V tolerant. I'm not sure this setup is safe. Especially GPIO18(INT) and GPIO19(MISO) pin will be driven with 5V by level shifter, this may give the pins damage or just won't work, I guess. If the pins are the causes you may want to connect the pins directly to MAX3421e without level shifter.

Or just try to give 3.3V power to 5V pin on the Shield, this will make the pins driven 3.3V instead of 5V.

hi @tmk thanks for the reply. anyway, i don't think there should be an issue since by default, the max 3421E is driven by the 3.3V. 5V rail is just go to the USB port. kindly refer this pcb schematic.

UHS2 0

since 5V is no the operating voltage for the max 3421E, the pcb is already design to avoid the 5V to be supply that IC in order to avoid damage on that IC. regards.

gdsports commented 4 years ago

The upper right corner shows pads for a chip name HCT something. This chip converts 3.3V to 5V for MISO and INT. You could cut the chip out and bridge the 2 signals to bypass the converter.

Mikegyver commented 4 years ago

The upper right corner shows pads for a chip name HCT something. This chip converts 3.3V to 5V for MISO and INT. You could cut the chip out and bridge the 2 signals to bypass the converter.

hi @gdsports i have already remove the level shifter IC which convert 3.3V to 5V for SPI. unfortunately still stuck with OSC did not start. kindly refer the photo below.

image

i did test the USB host shield with arduino nano for funtionality. it seems works fine with arduino nano.

image

basically i don't any idea anymore. seems to be it such like dead end for it.

jacobsoftwares commented 4 years ago

I also face exactly the same problem with ESP32 WROOM with USB Host Sheild (for Arduino Uno)

xxxajk commented 4 years ago

Are you supplying 5v to the VBUS line?

jacobsoftwares commented 4 years ago

yes i'm... when i run board_qc i get Reading REVISION register... Die revision invalid. Value returned: 09

dharmik768 commented 3 years ago

Same thing happening I got "OSC did not start." Using ESP32 dev board and USB host mini. It would be really helpful if someone has some solution for this.

LalithkumarReddy10 commented 2 years ago

Even iam facing the same issue with esp32devkit v1..But, the problem is solved by using ESP32S. The usb host shield is working perfectly fine with ESP32S. Maybe the issue is with the "usb host shield 2.0" library which is supporting ESP32S but not esp32devkit v1 board. Below is the link to purchase ESP32S... https://www.amazon.in/dp/B075YSNVPJ/ref=cm_sw_r_apan_glt_i_D75Q275Y8VE96JJF1WK6?_encoding=UTF8&psc=1

Romeo117g commented 2 years ago

Hello how are you, the error you have is in the connection of pins 9 and 10, since in the usb host shield they do not have any connection, check the schematic that Mikegyver is showing

nagatho commented 2 years ago

Still I am having problem with this shield. Is there any solid answer for this problem?

xxxajk commented 2 years ago

try tying shield's rst to 3.3v directly instead of using the reset from the MCU? Don't worry, the max chip is reset via software...

nagatho commented 2 years ago

Hi, I figure out the solutions. Should change SPI speed. Now it works fine

xxxajk commented 2 years ago

long wires causes that :-) Glad you found the fix.

allefrodrigo commented 1 year ago

How can I change the SPI?

golf1481 commented 1 year ago

How to change SPI Speed ?

xxxajk commented 1 year ago

SPI speed is here: https://github.com/felis/USB_Host_Shield_2.0/blob/59cc3d287dd1afe8d89856a8d4de0ad8fe9ef3c7/usbhost.h#L182

HTH...

As far as UHS30, I did something smarter, since this problem crops up often when people use wires that are too long. UHS30 fixes this problem by finding the most reliable spi speed for you, automatically.