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Sample - Drivers Library

• Changes
• Library Description
• Library API

• V2.00 : Initial revision
• V3.00 : New M93CX6 SPI E2P driver

This Driver sample ADL Library allows applications to use directly some specefic devices, plugged on SPI, I2C or Parallel bus. The available drivers are listed bellow :

• MAXIM MAX 6662 Temperature Sensor (SPI)
  This driver allows to read the current temperature from the MAX6662 device.
   
• Samsung KS0719 graphical LCD (SPI)
  This driver allows to draw points and to write characters on this graphical display.
   
• ST M93CX6 E2P Memory (SPI)
  This driver allows to write/read bytes to/from a M93CX6 external memory.
   
• Philips PCF8574 remote 8 bits I/O expander (I2C)
  This driver allows to read/write from/on this IO expander.
   
• Parallel LCD plugged on PCF8574 remote 8 bits I/O expander (I2C)
  This driver allows to write characters on a Parallel standard LCD, plugged on the PCF8574 I/O expander.
   
• Parallel standard LCD
  This driver allows to write characters an standard LCD plugged on the Parallel bus (Wismo Pac only).
   

All constants and APIs are defined by the drv_global.h header file, which must be included by any application to allows it to use the Drivers Library.

The library will need the global variable bellow on link operation, to define the trace level on which will be displayed the Drivers traces :

extern u8 drv_TraceLevel;

The Drivers APIs are defined bellow :

bool  drv_Subscribe ( drv_ID_t  ID, drv_Settings_t *  pSettings );  
 


Parameter	Description
ID	driver ID, defined in the drv_ID_t enum.
pSettings	settings structure, defined as drv_Settings_t union please refer to each driver header file for more informations.

bool  drv_Unsubscribe ( drv_ID_t  ID );  
 


Parameter	Description
ID	driver ID, defined in the drv_ID_t enum.

bool  drv_Write ( drv_ID_t  ID, drv_Write_t *  pWriteBuffer );  
 


Parameter	Description
ID	driver ID, defined in the drv_ID_t enum.
pWriteBuffer	write structure, defined as drv_Write_t union please refer to each driver header file for more informations.

bool  drv_Read ( drv_ID_t  ID, drv_Read_t *  pReadBuffer );  
 


Parameter	Description
ID	driver ID, defined in the drv_ID_t enum.
pReadBuffer	read structure, defined as drv_Read_t union please refer to each driver header file for more informations.

Updated: Wed Apr 4 13:16:43 CEST 2007;