USB on STm32F411RE

[quentin23]

Posted on April 07, 2016 at 11:07

Hi,

I'm trying to handle a printer via USB with my 

http://www.st.com/web/en/catalog/tools/PF260320

 but I'm facing a problem. Indeed, when my board send the first request for the enumeration, it goes in a waiting time forever :phost -> gState                = HOST_ENUMERATIONphost -> EnumState        = ENUM_IDLEphost -> RequestState     = CMD_WAITandphost -> Control -> state = CTRL_SETUP_WAITWhen I check the DP and DM line, there are indeed communication between my printer and the board but I don't know what the message means.For the Hardware, I have 

http://i.imgur.com/7EWn2w6.png?1

 (sorry but there is a bug when I try  to put a picture or a code block...). The LP2980-5 is a linear regulator supplied with 10V.For the Code, I'm inspired by a MSC_HOST application from STM324xG_Eval. Here the main part of usb_conf.c (I attach the complete file just in case):void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd){    GPIO_InitTypeDef  GPIO_InitStruct;   /* Configure USB FS GPIOs */ __HAL_RCC_GPIOA_CLK_ENABLE(); //__HAL_RCC_GPIOH_CLK_ENABLE(); GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12); GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);  GPIO_InitStruct.Pin = GPIO_PIN_6; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);  /* Enable USB FS Clocks */  __HAL_RCC_USB_OTG_FS_CLK_ENABLE(); /* Set USBFS Interrupt to the lowest priority */ HAL_NVIC_SetPriority(OTG_FS_IRQn, 5, 0); /* Enable USBFS Interrupt */ HAL_NVIC_EnableIRQ(OTG_FS_IRQn);}USBH_StatusTypeDef USBH_LL_Init(USBH_HandleTypeDef *phost){    /* Set the LL driver parameters */  hhcd.Instance = USB_OTG_FS;  hhcd.Init.Host_channels = 11;   hhcd.Init.dma_enable = 0;  hhcd.Init.low_power_enable = 0;  hhcd.Init.phy_itface = HCD_PHY_EMBEDDED;   hhcd.Init.Sof_enable = 0;  hhcd.Init.speed = HCD_SPEED_FULL;  /* 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;}USBH_StatusTypeDef USBH_LL_DriverVBUS(USBH_HandleTypeDef *phost, uint8_t state){    if(state == 0)   {        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_RESET);    }    else   {        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_SET);    }        HAL_Delay(200);     return USBH_OK;  }Except for the Vbus pin, I didn't change much. I although tried to use the mass storage class with a usb stick to be sur the problem didn't come from my printer class. It didn't change anything as expected.Has anyone succeed to use this board as USB host ? For the others, is there a obvious problem that I don't get ?Thank you. #msc #usb #host

[tsuneo]

Posted on April 07, 2016 at 21:02

Hi hivert,

On your schematic, the connection of D+/D- lines is swapped. The right connection is, PA11 -- D- (DM) PA12 -- D+ (DP) > Has anyone succeed to use this board as USB host ? I tested CubeMX MSC (Mass-Storage Class) host on NUCLEO-F411RE board. Generated code worked for a USB stick without any change, at least on these steps. enumeration and initial MSC setup - GetMaxLUN - INQUIRY - TEST UNIT READYY - READ CAPACITY 10 (observed on a hardware bus analyzer) CubeMX: 4.0 STM32Cube_FW_F4_V1.0 I attached CubeMX setting file (zip) to this post. As of the hardware connection, 1) clock source - MCO from ST-Link My NUCLEO-F411RE (MB1136 C-02 revision) has default MCO connection from on-board ST-Link. If your board would be C-01 revision, solder the jumpers, following to section ''5.6.1 OSC clock supply'' of the NUCLEO64 manual (

http://www2.st.com/content/ccc/resource/technical/document/user_manual/98/2e/fa/4b/e0/82/43/b7/DM001058pdf/files/DM001058pdf/jcr:content/translations/en.DM001058pdf

). 2) Connection to USB type-A connector

NUCLEO-F411RE type-A

PA12 CN10 pin12 -- D+ PA11 CN10 pin14 -- D- +5V CN7 pin18 -- VBUS (5V) GND CN10 pin 9 -- GND Try this one as the start point of your project. Tsuneo ________________ Attachments : cubemx_nucleo_f411re_msc_host.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0bO&d=%2Fa%2F0X0000000bb0%2FtYhjRvfFODfmTrpTX8Go0nahX_0j0l8XKoX7vyGef_A&asPdf=false

[quentin23]

Posted on April 08, 2016 at 15:48

Hi Tsuneo and thank you a lot for your help. Its works perfectly fine now and my printer is detected.

I'm not quite sure what was wrong before but nevermind.PS : I see you are the one who have helped for printer class [DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB%20printer%20class&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=1210]here so double-thanks for you.