topic i.mx6 i2c set to slave? in i.MX Processors

i.mx6 i2c set to slave?

guohn — Wed, 15 Feb 2017 07:59:27 GMT

We need set i.mx6's i2c to slave mode.But not occur interrupt.

The following is my initialization step:

writeb(0x20, i2c_imx->base + IMX_I2C_IADR);//set i2c slave addr to 0x20

writeb(I2CR_IEN, i2c_imx->base + IMX_I2C_I2CR);//enable i2c

temp = readb(i2c_imx->base + IMX_I2C_I2CR);//

temp |= I2CR_IIEN;
writeb(temp, i2c_imx->base + IMX_I2C_I2CR);//enable i2c interrupt

Then other device i2c send to mx6, and i.mx6 not occur interrupt.

Who knows what's the problem?

Best Regards,
Shannon

Re: i.mx6 i2c set to slave?

igorpadykov — Wed, 15 Feb 2017 10:24:33 GMT

Hi Shannon

as stated in sect.35.3 Driver Features attached Linux Manual :

The I2C driver does not support the I2C slave mode of operation.

Best regards
igor
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