iicps
Vitis Drivers API Documentation
Macros | Functions | Variables
xiicps_eeprom_polled_example.c File Reference

Overview

This file consists of a polled mode design example which uses the Xilinx PS IIC device and XIicPs driver to exercise the EEPROM.

This example runs on zynqmp evaluation board (zcu102).

The XIicPs_MasterSendPolled() API is used to transmit the data and XIicPs_MasterRecvPolled() API is used to receive the data.

The example is tested with a 2Kb/8Kb serial IIC EEPROM (ST M24C02/M24C08). The WP pin of this EEPROM is hardwired to ground in the HW in which this was tested.

The AddressType should be u8 as the address pointer in the on-board EEPROM is 1 bytes.

This code assumes that no Operating System is being used.

Note

None.

MODIFICATION HISTORY:
Ver   Who  Date     Changes






1.00a sdm  03/15/10 First release
1.01a sg   04/13/12 Added MuxInit function for initializing the IIC Mux
              on the ZC702 board and to configure it for accessing
              the IIC EEPROM.
                    Updated to use usleep instead of delay loop
1.04a hk   09/03/13 Removed GPIO code to pull MUX out of reset - CR#722425.
2.3     sk       10/07/14 Removed multiple initializations for read buffer.
3.3   Nava 08/08/16 Adopt the Dynamic EEPROM finding support.
3.11   rna  10/16/19 Added support for 64 page size eeproms on Versal based
              boards, scanning for eeprom until found on all I2C
              instances
       rna  03/26/20 Eeprom page size detection support is added.
3.18   gm   07/14/23 Added SDT support.
 



Macros


#define SLV_MON_LOOP_COUNT   0x00FFFFFF


 Slave Monitor Loop Count.  More...


 





Functions


s32 IicPsEepromPolledExample (void)


 This function writes, reads, and verifies the data to the IIC EEPROM.  More...


 


int main (void)


 Main function to call the Iic EEPROM polled example.  More...


 





Variables


u16 EepromAddr [] = {0x54, 0x55, 0}


 Searching for the required EEPROM Address and user can also add their own EEPROM Address in the below array list.  More...


 




Macro Definition Documentation






      

        

          #define SLV_MON_LOOP_COUNT   0x00FFFFFF
        

      





Slave Monitor Loop Count. 







Function Documentation






      

        

          s32 IicPsEepromPolledExample 
          (
          void 
          )
          
        

      





This function writes, reads, and verifies the data to the IIC EEPROM. 


It does the write as a single page write, performs a buffered read.


Returns
XST_SUCCESS if successful else XST_FAILURE.


Note
None. 



References EepromWriteData().



Referenced by main().











      

        

          int main 
          (
          void 
          )
          
        

      





Main function to call the Iic EEPROM polled example. 


Returns
XST_SUCCESS if successful else XST_FAILURE.


Note
None. 



References IicPsEepromPolledExample().







Variable Documentation






      

        

          u16 EepromAddr[] = {0x54, 0x55, 0}
        

      





Searching for the required EEPROM Address and user can also add their own EEPROM Address in the below array list.