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Clocks

Anonymous
Not applicable

 Hi:

   

      I use the CY22150 to provide clocks. The IIC bus master is cy68013, the slaver is cy22150. I use the 

   

function EZUSB_WriteI2C(ChipID,length,EepromBuf), which is from lib to write data to IIC bus, but the cy22150 didn't send back ACK, after the 8bits ChipID finished.

   

      EepromBuf[0] = 0X09H

   

      EepromBuf[1] = 0X00H

   

      The slaver device address is 0x69H, so  EZUSB_WriteI2C(0x69,2,EepromBuf) .

   

      The attachments are schematic.

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Anonymous
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And I forgot one thing, in my system, I have a EEPROM chip 24LC128, the sda and clk have pull up resistors 1.5K.

   

I use the EZUSB_WriteI2C(), EZUSB_ReadI2C() functions to write and read data, I think the IIC bus operation functions are working all right.

   

the 24LC128 device address is 0xA2.

   

data address is two bytes.

   

 

   

I was very confused about the iic interface of cy22150.

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Anonymous
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 That problem is that the chip device address is not 0x69H, those distributors modify address before sending cy22150 chip. Those fool didn't tell us that!

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