Zilog EZ80F91AZA - Manual (Page 22)

RZK Board Support Package UM007518-1211
12
Zilog Real-Time Kernel: eZ80
®
CPU
User Manual
I
2
C Configuration
The configurable parameters for the I
2
C driver are located in the i2c_conf.c source file
that accompanies the RZK release in the following path:
\Program Files\Zilog\

ZDSII_eZ80Acclaim!_A.B.C\ZTP\ZTPX.Y.Z_Lib\RZK\Conf
To change any of the I
2
C parameters, include this file in the project and set the appropriate
values, as defined in Table 8.
Flash Drivers
Flash drivers are implemented as simple APIs that do not operate within the constructs of
the DDF. To access these functions directly, include the device header files in the applica-
tion.
Table 8. Configurable I
2
C Drivers
Variable/Macro Default Value Description/Valid Values
I2C_TASK_STACK_SIZEH 1024 Stack size of the I
2
C interrupt thread.
I2C_RX_MAX_BUFF_SIZEH 100 Size of the Rx circular queue.
I2C_TASK_PRIORITYH 6 Priority of the I
2
C Interrupt thread.
i2cConfigParams {0xB0,
0x00,0x58,
I2C_MASTER,
RZK_FALSE,
0x00,2}
i2cConfigParams currSlaveAddr The slave address with which the master communi-
cates, for example, 0xA0.
i2cConfigParams selfAddr The address of eZ80 when acting as a slave.
i2cConfigParams speed The speed of the I
2
C bus, for example, 0x58.
i2cConfigParams mode I2C_MASTER/I2C_SLAVE;
determines whether eZ80 will act as a master or
slave.
i2cConfigParams useSubAddr RZK_TRUE/RZK_FALSE; determines whether to use
subaddresses for the slave device.
i2cConfigParams subAddr subaddress value for the slave; used only if the use-
SubAddr Flag is set to RZK_TRUE.
i2cConfigParams addrLen Length of subaddress; the number of subaddress
bytes sent to the slave are based on this value.