Mikroelektronika MIKROE-724 データシート

632

mikoBasic PRO for dsPIC30/33 and PIC24

MikroElektronika

HID_Enable

sub procedure HID_Enable(dim readbuff as ^byte, dim writebuff as ^byte)

Description Enables USB HID communication.
Parameters - 

readbuff

: Read Buffer. 

- 

writebuff

: Write Buffer. 

These parameters are used for HID communication.

Nothing.

Nothing.

HID_Enable(@readbuff,@writebuff)

This function needs to be called before using other routines of USB HID Library.

HID_Read

sub function HID_Read() as byte

Description Receives message from host and stores it in the Read Buffer.
Parameters None.
Returns

If  the  data  reading  has  failed,  the  function  returns  0.  Otherwise,  it  returns  number  of  characters 

received from the host.

USB HID needs to be enabled before using this function. See HID_Enable.

while(HID_Read() = 0)

None.

HID_Write

sub function HID_Write(dim writebuff as ^byte, dim len as byte) as byte

Description Function sends data from Write Buffer 

writebuff

 to host.

Parameters -

 writebuff

: Write Buffer, same parameter as used in initialization; see HID_Enable. 

- 

len

: specifies a length of the data to be transmitted. 

If the data transmitting has failed, the function returns 0. Otherwise, it returns number of transmitted 

bytes.

USB HID needs to be enabled before using this function. See HID_Enable.

while(HID_Write(@writebuff,64) = 0)

Function call needs to be repeated as long as data is not successfuly sent.