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The usb can not init OK, and error in USB_DevInit.

jimmy_cheng
Associate II

USB_FlushTxFifoc & USB_FlushRxFifo API flag USB_OTG_GRSTCTL_TXFFLSH & USB_OTG_GRSTCTL_RXFFLSH can not clear when set.

5 REPLIES 5
FBL
ST Employee

Hi @jimmy_cheng 

Typically, you have an issue to initialize your USB PHY consequently core init. Check you clock configuration, your sequence to configure the PHY. 

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Hi, @FBL 

I use the USB3340-EZK and checked the clock configuration is correct,and the USB_CoreInit API can return HAL_OK.

It's run OK last week, but get the HAL_TIMEOUT in "Flush TX /RX Fifo " this week. I have no change.

 

jimmy_cheng_0-1721060898712.png

The local variables below when break stop on 469 line.

numuint32_t0x10
USBxUSB_OTG_GlobalTypeDef *0x40040000
GOTGCTL volatile uint32_t 0x30100c0
GOTGINT volatile uint32_t 0x100000
GAHBCFG volatile uint32_t 0x0
GUSBCFG volatile uint32_t 0x40001410
GRSTCTL volatile uint32_t 0x80000000
GINTSTS volatile uint32_t 0x14000020
GINTMSK volatile uint32_t 0x0
GRXSTSR volatile uint32_t 0x0
GRXSTSP volatile uint32_t 0x0
GRXFSIZ volatile uint32_t 0x400
DIEPTXF0_HNPTXFSIZ volatile uint32_t 0x4000400
HNPTXSTS volatile uint32_t 0x80400
Reserved30 uint32_t [2] 0x40040030
GCCFG volatile uint32_t 0x0
CID volatile uint32_t 0x2300
GSNPSID volatile uint32_t 0x4f54330a
GHWCFG1 volatile uint32_t 0x0
GHWCFG2 volatile uint32_t 0x229fe190
GHWCFG3 volatile uint32_t 0x3b8d2e8
Reserved6 uint32_t 0xe3f00030
GLPMCFG volatile uint32_t 0x0
GPWRDN volatile uint32_t 0xc200010
GDFIFOCFG volatile uint32_t 0x3b80400
GADPCTL volatile uint32_t 0x0
Reserved43 uint32_t [39] 0x40040064
HPTXFSIZ volatile uint32_t 0x0
DIEPTXF volatile uint32_t [15] 0x40040104
countvolatile uint32_t0x0

 

FBL
ST Employee

Hi @jimmy_cheng 

I have seen a similar issue on F4, could you confirm inserting __DSB(); resolves the issue to ensure transaction is complete.

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Hi, @FBL 

I inserted the __DSB(), but can not solve my issue. But still get the HAL_TIMEOUT return.

jimmy_cheng_0-1721125571473.png

 

FBL
ST Employee

Hi @jimmy_cheng 

Did you update the latest version of CubeH7? 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.