13 Replies Latest reply on Jul 5, 2012 10:28 PM by rama.sai.krishna.vakkantula

    CA68013A DOWNLOAD *.IIC TO EEPROM(no wave on iic bus)

    george.gao

      HI,

         

          I tried to download "my_firmware.iic" to my CY68013A board with two bland new 24LC128 EEPROM(A0,A1,A2:1,0,0 and 1,1,0), below is what i did:

         

      1. Open Cypress suit usb 3.4.7->Cyconsole->EZ-USB interface

         

      2.Select download C:\Cypress\USB\Examples\FX2LP\Vend_ax\Vend_ax.hex to CY68013A's on chip RAM

         

      3.Set Req:0xA9, Value:0x0000, index:0x0000, Length:16, Dir:in,   i got:CD CD CD CD CD.........

         

      4.Set Req:0xA9, Value:0x0000, index:0x0000, Length:1, Dir:out, hex byte: 00

         

      5.Set Req:0xA9, Value:0x0000, index:0x0000, Length:1, Dir:in,  i got:CD again(that means now data be wrote in to EEPROM)

         

      6.Select lg EEPROM->"my_firmware.iic"  i got messagebox: EEPROM NOT ENABLED.

         

      7.I used a oscilloscope to IIC BUS during 0xA9 and lg EEPROM,  i found there is not wave on the BUS!!!

         

      Is there anybody can help me? Thanks!