Trace: » I2C_Alloc » AC97_Unlock » I2C_ReadByte
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I2C_ReadByte
The function I2C_ReadByte reads one byte from an i2c-device.
int I2C_ReadByte( UCHAR uSlaveAddress, UCHAR* pBuffer ); int i2c_GetByte( UCHAR uSlaveAddress, UCHAR* pBuffer );
Parameters
uSlaveAddress
Slave-Address of the i2c-device.
pBuffer
Buffer to receive the byte read.
Return Values
If the function succeeds, the return value is 0.
If the function fails, the return value is -1.
Remarks
Issues following sequence:
- Lock
- Start
- SlaveAddress with read-bit
- Read one byte
- Stop
- Unlock
This function calls I2C_Lock and I2C_Unlock to prevent multiple accesses to the i2c-bus. Don't lock access to i2c-bus prior to using this function!!
Requirements
OS Versions: Windows CE 4.2 and later.
Header: drvlib_app.h
Link Library: drvlib_app.lib
See Also
(C) 2009 Keith & Koep GmbH. Alle Rechte vorbehalten. Nutzungsbedingungen
(C) 2009 Keith & Koep GmbH. All rights reserved. Terms of Use
(C) 2009 Keith & Koep GmbH. All rights reserved. Terms of Use