firstly i initialize the clock and then initialize pins driver. And then I initialize the LPI2C. But when I enable interrupt. then it will run to default interrupt. I actually don't know which cause it. Can someone help me?
Thanks in advance!
Do you have the correct ISR in your code?
Can you share the code?
Thanks for your reply. It's because I don't enable the bus clock. But when I send data. execute the command
master->blocking = true. the txBuff can be accessd. Can you give me some suggestion?
Thanks, I read in the post that you initialized the clock
Yes, if the bus interface clock is not enabled, any access to the LPI2C module triggers a fault exception.
I have noticed that you use S32K144.
Which has SRAM_U mapped to 0x20000000 - 0x20006FFF.
And the txBuff pointer points to 0x20010018 which is out of the SRAM_U region on this device.
I'm so sorry I don't express my meaning clearly. I mean that before I run the command master->blocking = true. txBuff pointer points at 0x20000884. But after running this command. txBuff pointer will point at address 0x20000884. if I change the command master->blocking = true to master->blocking = false. The address will be correst.
But now when I initialize the SOSC 8M, SPLL160M and normal run mode 80M. the program will run into startup.c file. I don't know which cause it.
The SDK drivers must not be modified. We can't guarantee a proper functionality of the drivers if modified.
There are two functions you can use:
Depending whether you want to send the data blocking or non-blocking.
Regarding the clock issue, I would have to see the code to answer that.
Can you provide a simple test code?
Thanks for your support.
Now I create a new project and move my source code from old project to new project. And now it work properly. Now I use functionality LPI2C_DRV_MasterSendData() to send data to slave. But I still don't know which cause that issue. And I can't confirm that the clock of former project is correct. So I'm very confused. you can see the wave. is it correct? (One is SCL, two is SDA.)
The waveform looks correct to me.
It is not receiving any ACK though.
What is your doubt?
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