Posted on September 24, 2015 at 14:45I�m trying to use the STM32F407 as Host, i use Olimex STM32-P407 eval, my hardware configuration is the following:
- PB14, PB15, PB13 (DM, DP, VBUS) OTG HS as a Host with Embedded PHY
I
'm trying to
initialize
the mini USB-
OTG HS
present
on OLIMEX and use FS Mode.
This is my
initialization
present on file ''usbh_conf.c'':
void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hhcd->Instance == USB_OTG_HS)
{
/* Configure USB HS GPIOs */
__GPIOB_CLK_ENABLE();
__GPIOC_CLK_ENABLE();
/* Configure DM DP Pins */
GPIO_InitStruct.Pin = GPIO_PIN_14 | GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_OTG_HS_FS;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* This for ID line debug */
GPIO_InitStruct.Pin = GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS_FS;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Configure Power Switch Vbus Pin */
GPIO_InitStruct.Pin = GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Enable USB HS Clocks */
__USB_OTG_HS_CLK_ENABLE();
HAL_NVIC_SetPriority(OTG_HS_IRQn, 0, 0);
/* Enable USB HS Interrupt */
HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
}
}
The Power Switch configuration is:
USBH_StatusTypeDef USBH_LL_DriverVBUS(USBH_HandleTypeDef *phost, uint8_t state)
{
if(state == 0)
{
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_2, GPIO_PIN_SET);
}
else
{
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_2, GPIO_PIN_RESET);
}
HAL_Delay(200);
return USBH_OK;
}
The Initialization of the Low Level portion of the Host driver is:
USBH_StatusTypeDef USBH_LL_Init(USBH_HandleTypeDef *phost)
{
/* Set the LL driver parameters */
hhcd.Instance = USB_OTG_HS;
hhcd.Init.Host_channels = 11;
hhcd.Init.dma_enable = 0;
hhcd.Init.low_power_enable = ENABLE;
hhcd.Init.phy_itface = HCD_PHY_EMBEDDED;
hhcd.Init.Sof_enable = 0;
hhcd.Init.speed = HCD_SPEED_FULL;
hhcd.Init.vbus_sensing_enable = DISABLE;
/* Link the driver to the stack */
hhcd.pData = phost;
phost->pData = &hhcd;
/*Initialize the LL Driver */
HAL_HCD_Init(&hhcd);
USBH_LL_SetTimer(phost, HAL_HCD_GetCurrentFrame(&hhcd));
return USBH_OK;
}
QUESTION
:
1) It's correct configuration? In this mode i see 5V on VBUS, but my phone don't charge when i connect it.
2)
Why
VBUS
is
configured
in this mode
(
GPIO_MODE_INPUT
)?
3) T
he
configuration
for the Power
switch
is correct?
4)
My goal
is that
by connecting the
phone to
OLIMEX
she
finds out that the
phone is connected and charge it
. H
ow can I
manage and
configure
the interrupt
?
Thanks for your help.
#vbus #stm32f4 #usb #otg #host #cell
