xiicps_eeprom_intr_example.c File Reference

Overview

This file consists of a interrutp 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_MasterSend() API is used to transmit the data and the XIicPs_MasterRecv() 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 on 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.
3.11   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   08/26/23 Added SDT support.

Macros
#define	SLV_MON_LOOP_COUNT   0x000FFFFF
	Slave Monitor Loop Count. More...

Functions
int	IicPsEepromIntrExample (void)
	This function writes, reads, and verifies the data to the IIC EEPROM. More...
int	main (void)
	Main function to call the Iic EEPROM interrupt example. More...

Variables
volatile u8	TransmitComplete
	Flag to check completion of Transmission. More...
volatile u8	ReceiveComplete
	Flag to check completion of Reception. More...
volatile u32	TotalErrorCount
	Total Error Count Flag. More...
volatile u32	SlaveResponse
	Slave Response Flag. More...
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   0x000FFFFF

Slave Monitor Loop Count.

Function Documentation

int IicPsEepromIntrExample

(

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 interrupt example.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

References IicPsEepromIntrExample().

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.

volatile u8 ReceiveComplete

Flag to check completion of Reception.

volatile u32 SlaveResponse

Slave Response Flag.

volatile u32 TotalErrorCount

Total Error Count Flag.

Referenced by Handler(), IicPsMasterIntrExample(), IicPsMultiMasterIntrExample(), IicPsSlaveIntrExample(), XIicPsSmbusMasterReadBlockData(), and XIicPsSmbusMasterWriteBlockData().

volatile u8 TransmitComplete

Flag to check completion of Transmission.