MAX3421 Host on ESP32, issues during descriptor requests

[marco-04]

Hi, I'm trying to integrate the tinyusb stack in an ESP32 project using a MAX3421E host controller, but I'm experiencing frequent hangs. Most times the host stack doesn't even complete the mounting of the device. The only thing that I know is that the host stack seems to become "unreliable" with the Bluetooth controller enabled.

The usb code in my project is basically the hid_controller example code with slight modifications (i.e. the tuh_task runs in a freertos task) and without changing the callbacks.

I also tried building the example alone and it seems to work pretty reliably, but even in this condition I experienced some hangs (although very rarely).

Here are the logs, although many times they don't get past "Get 8 byte of Device Descriptor"

USBH init on controller 1, speed = Auto
sizeof(usbh_data_t) = 48
sizeof(usbh_device_t) = 93
sizeof(hcd_event_t) = 12
sizeof(tuh_xfer_t) = 28
sizeof(tu_fifo_t) = 20
sizeof(tu_edpt_stream_t) = 116
HID init
sizeof(hidh_interface_t) = 14
sizeof(max3421_ep_t) = 12
sizeof(max3421_data_t) = 196
offsetof(max3421_data_t, ep) = 100
revision = 0x13
jk = 0x80
[1:] USBH Device Attach
USBH schedule function after 150 ms
USBH invoke scheduled function
USBH schedule function after 50 ms
jk = 0x80
USBH invoke scheduled function
USBH schedule function after 2 ms
USBH invoke scheduled function
Full Speed
USBH schedule function after 10 ms
USBH invoke scheduled function
[1:0] Open EP0 with Size = 8
Get 8 byte of Device Descriptor
[1:0] Get Descriptor: 80 06 00 01 00 00 08 00
[:0] on EP 00 with 8 bytes: OK
[:0] on EP 80 with 8 bytes: OK
[1:0] Control data:
  0000:  12 01 00 02 00 00 00 40                          |.......@|
[:0] on EP 00 with 0 bytes: OK

Set Address = 1
[1:0] Set Address: 00 05 01 00 00 00 00 00
[:0] on EP 00 with 8 bytes: OK
[:0] on EP 80 with 0 bytes: OK

USBH schedule function after 2 ms
USBH invoke scheduled function
[1:1] Open EP0 with Size = 64
Get Device Descriptor
[1:1] Get Descriptor: 80 06 00 01 00 00 12 00
[:1] on EP 00 with 8 bytes: OK
[:1] on EP 80 with 18 bytes: OK
[1:1] Control data:
  0000:  12 01 00 02 00 00 00 40 4C 05 C4 05 00 01 01 02  |.......@L.......|
  0010:  00 01                                            |..|
[:1] on EP 00 with 0 bytes: OK

[1:1] Get Descriptor: 80 06 00 03 00 00 02 00
[:1] on EP 00 with 8 bytes: OK

[DevinJM3]

This feels like it should be an issue not a discussion post, you may get more eyes on it and they may be able to get you some help!