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DEVELOPING A USB SMARTCARD READER WITH ST7SCR

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unsigned char PC_to_RDR_Escape(void)

This function ve rifies the PC_T O_RD R_ ES CAPE com mand fo rma t and calls th e

IFD_Escape() function (from the Interface Device level). This PC_to_RDR function returns an

error code (from IFD_Escape(), for example).

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unsigned char PC_to_RDR_IccClock(void)

This function verifies the PC_TO_RDR_ICCCLOCK command format and calls the

IFD_SetClock() function (from the Interface Device level). This PC_to_RDR function returns

an error code (from IFD_SetClock(), for example).

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unsigned char PC_to_RDR_Abort(void)

This function verifies the PC_TO_RDR_ABORT command format, checks the abort condi-

tions and sets the corresponding flag. It returns the corresponding error code.

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void RDR_to_PC_DataBlock(unsigned char ErrorCode)

This function fills the whole command buffer header including the error code given as input to

prepare the RDR_TO_PC_DATABLOCK message.

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void RDR_to_PC_SlotStatus(unsigned char ErrorCode)

This function fills the whole command buffer header including the error code given as input to

prepare the RDR_TO_PC_SLOTSTATUS message.

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void RDR_to_PC_Parameters(unsigned char ErrorCode)

This function fills the whole command buffer header including the error code given as input to

prepare the RDR_TO_PC_PARAMETERS message and call the IFD_GetParameters() func-

tion to fill the message data field.

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void RDR_to_PC_Escape(unsigned char ErrorCode)

This function fills the whole command buffer header including the error code given as input to

prepare the RDR_TO_PC_ESCAPE message.