第八部分 EEPROM读写例程

在AX309开发板上有一个IIC接口的EEPROM芯片24LC04，容量大小为4Kbit，用户可以用来存放一些硬件设置数据或者用户信息。因为EEPROM为掉电后数据不丢失的存储芯片，另外用户也可以通过IIC总线对它进行多次编程。想要读写EEPROM，我们首先要理解IIC总线读写的时序。

08_eeprom_test
_ngo
_xmsgs
chipscope
chipscope_icon.asy
chipscope_icon.constraints
chipscope_icon.gise
chipscope_icon.ncf
chipscope_icon.ngc
chipscope_icon.ucf
chipscope_icon.v
chipscope_icon.veo
chipscope_icon.xco
chipscope_icon.xdc
chipscope_icon_flist.txt
chipscope_icon_readme.txt
chipscope_icon_xmdf.tcl
chipscope_ila.asy
chipscope_ila.cdc
chipscope_ila.constraints
chipscope_ila.gise
chipscope_ila.ncf
chipscope_ila.ngc
chipscope_ila.ucf
chipscope_ila.v
chipscope_ila.veo
chipscope_ila.xco
chipscope_ila.xdc
chipscope_ila_flist.txt
chipscope_ila_readme.txt
chipscope_ila_xmdf.tcl
coregen.cgc
coregen.cgp
eeprom.cpj
eeprom_test.bgn
eeprom_test.bit
eeprom_test.bld
eeprom_test.cmd_log
eeprom_test.drc
eeprom_test.gise
eeprom_test.lso
eeprom_test.ncd
eeprom_test.ngc
eeprom_test.ngd
eeprom_test.ngr
eeprom_test.pad
eeprom_test.par
eeprom_test.pcf
eeprom_test.prj
eeprom_test.ptwx
eeprom_test.stx
eeprom_test.syr
eeprom_test.twr
eeprom_test.twx
eeprom_test.unroutes
eeprom_test.ut
eeprom_test.xise
eeprom_test.xpi
eeprom_test.xst
eeprom_test_bitgen.xwbt
eeprom_test_envsettings.html
eeprom_test_guide.ncd
eeprom_test_map.map
eeprom_test_map.mrp
eeprom_test_map.ncd
eeprom_test_map.ngm
eeprom_test_map.xrpt
eeprom_test_ngdbuild.xrpt
eeprom_test_pad.csv
eeprom_test_pad.txt
eeprom_test_par.xrpt
eeprom_test_summary.html
eeprom_test_summary.xml
eeprom_test_usage.xml
eeprom_test_xst.xrpt
iic_com.cmd_log
iic_com.spl
iic_com.sym
ipcore_dir
iseconfig
par_usage_statistics.html
rtl
tmp
usage_statistics_webtalk.html
webtalk.log
webtalk_pn.xml
xlnx_auto_0_xdb
xst