S32KのトピックRe: LPI2C example non blocking

LPI2C example non blocking

adrianwenger — Fri, 12 May 2017 08:52:24 GMT

Hi,

i need a example for I2C master reqeuests data from a slave and waits to receive the data non blocking. The SDK only provides a example with blocking.

Regards,

Adrian

Re: LPI2C example non blocking

adrianwenger — Thu, 18 May 2017 10:07:34 GMT

???

Re: LPI2C example non blocking

danielmartynek — Thu, 18 May 2017 14:40:24 GMT

Hi,

Sorry for the late response.

The thing is that we don’t have such an example yet.

I have started working on an example with MPL3115A2 sensor,

but it is still in progress.

Regards,

Daniel

Re: LPI2C example non blocking

adrianwenger — Mon, 22 May 2017 08:56:53 GMT

Hello Daniel,

thanks i'm looking forward to your solution.

BR,

Adrian

Re: LPI2C example non blocking

danielmartynek — Mon, 22 May 2017 15:23:53 GMT

Hi,

Attached is a simple bare-metal example with MPL3115A2 pressure/temperature sensor, although it is blocking example, it could help.

For non-blocking algorithm please refer to AN4803 I2C Non-Blocking Communication.

Regards,

Daniel

Attachment updated

Re: LPI2C example non blocking

rayray — Wed, 24 May 2017 08:03:47 GMT

Hello Daniel，

I imported the example, changed the slave address, communicated with E2PROM,but can't work both write and read reg ,there is something wrong whit it？please help！

#define E2PROM_ADRR_R 0xA1
#define E2PROM_ADRR_W 0xA0

thanks

Ray

Re: LPI2C example non blocking

danielmartynek — Wed, 24 May 2017 10:37:16 GMT

Hello,

What do you see on scope? It is transmitting something, do you get acknowledge?

Regards,

Daniel

Re: LPI2C example non blocking

rayray — Thu, 25 May 2017 03:50:43 GMT

Hello，

Thanks very much,Reference the E2PROM datasheet changed something,now it works well

Regards,

Ray