I'm new in the Freescale Universe, and I have a practice with a MC9S08QE32CLD for comunicate with a MCP23017, I have a problem with the set up for the I2C communication process.
thanks for the collaboration
i don't know MC9S08QE32 cpu but i have read only its RM. Have you read RM??
The clock used by I2C is ICSOUT as shown in screenshot:
In the clock block diagram you see that ICSOUT can be referred to the external clock source setting CLKS and BDIV.
To configure external clock for I2c you must have:
ICSC1 = 0b10000000;
ICSC2 = 0b00101010;
I hope it helps.
Please indicate your compiler and MQX version.
sorry but I don't understand what is the mean of MQX, I'm using codewarrior 10
MQX is not supported by HCS08 family sorry!
You can see in MC9S08QE32 reference manual at chapter 12 (IIC).
What is exactly your problem?
I want to work with a external clock 10 MHz, I think that it's the issue, because i don't know how configure the external clock.
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