请教大神们关于GD32 USB问题

只看该作者 · 2015-10-10 15:42

准备换GD32 在调试USB时候

for (i = 0; i < num_channels; i++)
  {
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[i]->HCCHAR);
hcchar.b.chen = 1;
hcchar.b.chdis = 1;
hcchar.b.epdir = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[i]->HCCHAR, hcchar.d32);
do
{
   USB_OTG_READ_REG32(&pdev->regs.GREGS->GRXSTSP);
   hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[i]->HCCHAR);
   USB_OTG_BSP_uDelay (20);
}
while (hcchar.b.chen);
  }
USB初始化就死在这个循环里了

只看该作者 · 2015-10-10 15:50

uint32_t USB_OTG_ReadOtgItr (USB_OTG_CORE_HANDLE *pdev)
{
  return (USB_OTG_READ_REG32 (&pdev->regs.GREGS->GOTGINT));
}

/**
* @brief  USB_OTG_CoreInitHost : Initializes USB_OTG controller for host mode
* @param  pdev : Selected device
* @retval status
*/
USB_OTG_STS USB_OTG_CoreInitHost(USB_OTG_CORE_HANDLE *pdev)
{
  USB_OTG_STS                   status = USB_OTG_OK;
  USB_OTG_FSIZ_TypeDef          nptxfifosize;
  USB_OTG_FSIZ_TypeDef          ptxfifosize;
  USB_OTG_HCCHAR_TypeDef       hcchar;
  USB_OTG_HCFG_TypeDef          hcfg;


  uint32_t                      num_channels = 0, i = 0;

  nptxfifosize.d32 = 0;
  ptxfifosize.d32 = 0;

  hcfg.d32 = 0;


  /* configure charge pump IO */
  USB_OTG_BSP_ConfigVBUS();

  /* Restart the Phy Clock */
  USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, 0);

  /* Initialize Host Configuration Register */
  USB_OTG_InitFSLSPClkSel(pdev , HCFG_48_MHZ);

  hcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HCFG);
  hcfg.b.fslssupp = 1;
  USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HCFG, hcfg.d32);

  /* Configure data FIFO sizes */
  /* Rx FIFO */
  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_SIZE);

  /* Tx FIFO */
  nptxfifosize.b.depth    = TXH_NP_FIFOSIZ;
  nptxfifosize.b.startaddr = RX_FIFO_SIZE;
  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->HNPTXFSIZ, nptxfifosize.d32);

  ptxfifosize.b.startaddr = RX_FIFO_SIZE + TXH_NP_FIFOSIZ;
  ptxfifosize.b.depth    = TXH_P_FIFOSIZ;
  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->HPTXFSIZ, ptxfifosize.d32);



  /* Make sure the FIFOs are flushed. */
  USB_OTG_FlushTxFifo(pdev, 0x10 );       /* all Tx FIFOs */
  USB_OTG_FlushRxFifo(pdev);


  /* Flush out any leftover queued requests. */
  num_channels = pdev->cfg.host_channels;

  for (i = 0; i < num_channels; i++)
  {
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS->HCCHAR);
hcchar.b.chen = 0;
hcchar.b.chdis = 1;
hcchar.b.epdir = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS->HCCHAR, hcchar.d32);

/* Clear all pending HC Interrupts */
USB_OTG_WRITE_REG32( &pdev->regs.HC_REGS->HCINT, 0xFFFFFFFF );
  }
  /* Halt all channels to put them into a known state. */
  for (i = 0; i < num_channels; i++)
  {
hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS->HCCHAR);
hcchar.b.chen = 1;
hcchar.b.chdis = 1;
hcchar.b.epdir = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS->HCCHAR, hcchar.d32);
do
{
   USB_OTG_READ_REG32(&pdev->regs.GREGS->GRXSTSP);
   hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS->HCCHAR);
   USB_OTG_BSP_uDelay (20);
}
while (hcchar.b.chen);
  }
  /* Disable HALT interrupt Masks */
  for (i = 0; i < num_channels; i++)
  {
USB_OTG_HCGINTMSK_TypeDef  hcintmsk;
hcintmsk.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS->HCGINTMSK);
hcintmsk.b.chhltd = 0;
USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS->HCGINTMSK , hcintmsk.d32);
  }

  USB_OTG_DriveVbus(pdev, 1);


  USB_OTG_EnableHostInt(pdev);
  return status;
}

只看该作者 · 2015-10-10 23:05

要用新版本库

请教大神们关于GD32 USB问题

精华达人奖章

湍急之河流

七世轮回

技术奇才奖章