Renesas R8A66597, Руководство пользователя

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Renesas USB Device USB Host Mass Storage Class Driver(HMSC)
R01AN0513EJ0110 Rev.1.10 Page 23 of 55
Aug 10, 2011
Table 4.6 usb_hmsc_SendData()
Name Transmit Data
Call format uint16_t usb_hmsc_SendData(uint16_t drvnum, uint8_t *buff, uint32_t size)
uint16_t drvnum
Drive number
uint8_t *buff Transmit data area Arguments
uint32_t size Transmit data size
Return values uint16_t
USBC_HMSC_OK Normal end
USBC_HMSC_DAT_WR_ERR Transmit error
USBC_HMSC_SUBMIT_ERR Submit error
Description
Transmits data.
When a STALL response is generated, the ClearFeature request is executed to continue
and the CSW is received.
Notes
Table 4.7 usb_hmsc_GetCsw()
Name Receive CSW
Call format uint16_t usb_hmsc_GetCsw(uint16_t drvnum)
Arguments uint16_t drvnum Drive number
Return values uint16_t
USBC_HMSC_OK Normal end
USBC_HMSC_CSW_ERR CBW transfer error
USBC_HMSC_SUBMIT_ERR Submit error
USBC_HMSC_CSW_PHASE_ERR Phase error
Description
Receives the CSW.
When a STALL response is generated, the ClearFeature request is executed and the CSW
is received again.
When a phase error is received, reset recovery is executed.
Notes
Table 4.8 usb_hmsc_GetStringInfo()
Name GetDescriptor (String) Request Execution
Call format uint16_t usb_hmsc_GetStringInfo(uint16_t devaddr, uint8_t *table)
uint16_t devaddr
Device address
Arguments
uint8_t *table Device descriptor storage pointer
Return values uint16_t
USBC_DONE Normal end
USBC_ERROR Error end
Description GetDescriptor (string) request is executed to get the serial number.
Notes