reset_core() infinite loop

[kjdtkd]

Operating System

Windows 11

Commit SHA

ae3864d

Board

Arduino Portenta H7 Lite

Firmware

examples/host/device_info

Using ZephyrRTOS

• Native Zephyr USB stack is disabled

What happened ?

Attempting to bring up the FS PHY on a Portenta H7 Lite (STM32H747XI) leads to an infinite loop in reset_core() similar to #2074

Edit: The same issue seems to occur when attempting to bring up the HS PHY. Is this a clock settings issue that I am having?

How to reproduce ?

1. Attempt to enable the Fullspeed PHY as a host device

Debug Log as txt file (LOG/CFG_TUSB_DEBUG=2)

00> TinyUSB Device Info Example
00> USBH init on controller 0, speed = Auto
00> sizeof(usbh_data_t) = 40
00> sizeof(usbh_device_t) = 94
00> sizeof(hcd_event_t) = 12
00> sizeof(tuh_xfer_t) = 24
00> sizeof(tu_fifo_t) = 20
00> sizeof(tu_edpt_stream_t) = 52
00> CDC init
00> sizeof(cdch_interface_t) = 264
00> MSC init
00> sizeof(msch_interface_t) = 52
00> sizeof(msch_epbuf_t) = 48
00> HUB init
00> guid, gsnpsid, ghwcfg1, ghwcfg2, ghwcfg3, ghwcfg4
00> 0x00002300, 0x4F54330A, 0x00000000, 0x229FE190, 0x03B8D2E8, 0xE3F00030
00> Fullspeed PHY init <--- Freezes here in reset_core()

Screenshots

No response

I have checked existing issues, discussion and documentation

• I confirm I have checked existing issues, discussion and documentation.

[kjdtkd]

relevent register values prior to initing USB:

J-Link>mem32 0x40080000, 20
40080000 = 03010000 00100000 00000000 00001410
40080010 = 80000000 14000020 00000000 00000000
40080020 = 00000000 00000400 04000400 00080400
40080030 = 00000000 00000000 00000000 00002300
40080040 = 4F54330A 00000000 229FE190 03B8D2E8
40080050 = E3F00030 00000000 0C000010 03B80400
40080060 = 00000000 00000000 00000000 00000000
40080070 = 00000000 00000000 00000000 00000000

Register values prior to calling reset core:

J-Link>mem32 0x40080000, 20
40080000 = 03010000 00100000 00000000 00001440
40080010 = 80000000 14000030 00000000 00000000
40080020 = 00000000 00000400 04000400 00080400
40080030 = 00000000 00000000 00010000 00002300
40080040 = 4F54330A 00000000 229FE190 03B8D2E8
40080050 = E3F00030 00000000 0C000010 03B80400
40080060 = 00000000 00000000 00000000 00000000
40080070 = 00000000 00000000 00000000 00000000

Register values post reset core:

J-Link>mem32 0x40080000, 20
40080000 = 03210000 00100000 00000000 00001440
40080010 = 80000001 04000021 00000000 00000000
40080020 = 00000000 00000400 04000400 00080400
40080030 = 00000000 00000000 00010000 00002300
40080040 = 4F54330A 00000000 229FE190 03B8D2E8
40080050 = E3F00030 00000000 0C000010 03B80400
40080060 = 00000000 00000000 00000000 00000000
40080070 = 00000000 00000000 00000000 00000000

[HiFiPhile]

Since it's not a offically supported board, I suggest you to compare BPS's clock init code:
https://github.com/hathach/tinyusb/blob/master/hw/bsp/stm32h7/boards/stm32h747disco/board.h
https://github.com/hathach/tinyusb/blob/master/hw/bsp/stm32h7/family.c