STM32L4 USB double buffer HAL bug

[Darius B]

Posted on March 02, 2018 at 11:30

After some days investigation and debugging, I found bug at HAL definition.

Project was generated with CubeX v4.24, STM32L4 package version 1.11.0

@file    stm32l4xx_hal_pcd.h

#if 1 //darius

#define PCD_SET_EP_DBUF1_CNT(USBx, bEpNum, bDir, wCount)  { \

    if((bDir) == PCD_EP_DBUF_OUT)\

    {/* OUT endpoint */                                       \

      PCD_SET_EP_RX_CNT((USBx), (bEpNum),(wCount));           \

    }                                                         \

    else if((bDir) == PCD_EP_DBUF_IN)\

    {/* IN endpoint */                                        \

      *PCD_EP_RX_CNT((USBx), (bEpNum)) = (uint32_t)(wCount); \

    }                                                         \

  } /* SetEPDblBuf1Count */

#else// error her below

#define PCD_SET_EP_DBUF1_CNT(USBx, bEpNum, bDir, wCount)  { \

    if((bDir) == PCD_EP_DBUF_OUT)\

    {/* OUT endpoint */                                       \

      PCD_SET_EP_RX_CNT((USBx), (bEpNum),(wCount));           \

    }                                                         \

    else if((bDir) == PCD_EP_DBUF_IN)\

    {/* IN endpoint */                                        \

      *

PCD_EP_TX_CNT

((USBx), (bEpNum)) = (uint32_t)(wCount); \

    }                                                         \

  } /* SetEPDblBuf1Count */

#endif

Note:

Not found this bug at stm32L0 HAL  at file  stm32l0xx_hal_pcd.h ! Its Ok her and same like my correction.

#define PCD_SET_EP_DBUF1_CNT(USBx, bEpNum, bDir, wCount)  { \

    if(bDir == PCD_EP_DBUF_OUT)\

      /* OUT endpoint */ \

    {PCD_SET_EP_RX_CNT(USBx, bEpNum,wCount);}\

    else if(bDir == PCD_EP_DBUF_IN)\

      /* IN endpoint */\

      *PCD_EP_RX_CNT(USBx, bEpNum) = (uint32_t)wCount; \

  } /* SetEPDblBuf1Count */

I hope, then in next release this bug will be corrected in all packages.

BR

Darius Babrauskas

[Khouloud GARSI]

Posted on March 07, 2018 at 14:46

Hello

sqlsql

‌,

Thanks for bringing this point to our attention. I have highlighted it internally and I will get back to you with any further update.

Best regards,

Khouloud.

[Pavel A.]

Posted on March 07, 2018 at 15:47

Same in F0 library, ver, 1.9.0

STM32Cube_FW_F0_V1.9.0\Drivers\STM32F0xx_HAL_Driver\Inc\stm32f0xx_hal_pcd.h, line 776

--pa

[Khouloud GARSI]

Posted on March 07, 2018 at 17:50

Hi

pavel_a

‌,

This was also reported When an issue is highlighted on a Cube package, allother packages are also reviewed.

Thank you both for your feedback. This helps us to enhance the quality of our resources.

Khouloud.