I2C read is not working in latest spc5 studio 6.0, but the same code works in the old version spc5 studio. I don't know what to do.

[Ypvt .1]

Hello I'm sharan from yali mobilities. Here we are shifting from old spc5 studio to latest version spc5 studio 6.0. For testing I2C, I have used Arduino as a slave device. The programme which I have writen is attached as image. Arduino sends a inter value when an request event is occured. The programme runs in old spc5 studio, but it's not working in spc5 studio 6.0. I have used same configurations, setups and same board.

I have tried I2C write function it works properly for all the devices, which I have tested. If any one knows the solution kindly reply.

Thank you for reading.

[Erwan YVIN]

Hello Sharan ,

Could you send me your installation details ?

I need the version of SPC5RLA used for your device

You can revert the drivers installation from 1.17.0 to 1.16.0 , 1.14.0.

Best Regards

Erwan

[Yali Mobilities]

Could you tell me please, where can I find these details and I'm having SPC58EC80 disp board. Thank you

[Yali Mobilities]

Could you tell me please, where can I find these details and I'm having SPC58EC80 disp board. Thank you

[ODOUV.1]

go to Menu Help-> About SPC5Studio

click on Installation Details

use Filter SPC58EC

[Yali Mobilities]

Here I've attached the image. I checked for the update and it's upto date. Kindly look into it. Thank you.

[ODOUV.1 · Accepted solution]

Hello,

would you please try with this fixed file and let us know ?

====patch====

@@ -619,8 +619,12 @@ static int i2c_hw_read(void *priv, uint8_t dev_addr, uint16_t reg_addr, uint8_t

  i2cd->i2c_tagp->IBCR.B.RSTA = 0x1;

  i2cd->i2c_tagp->IBCR.B.IIC_MS = (uint8_t)i2cd->mode;

  i2cd->i2c_tagp->IBCR.B.IIC_TX = 0x1;

- i2cd->i2c_tagp->IBDR.R = i2cd->dev_addr| I2C_HW_READ;

- i2cd->state = I2C_MASTER_READ_DUMMY_DATA;

+ if (reg_addr_size == I2C_16_BIT_REG_ADDRESS) {

+ i2cd->i2c_tagp->IBDR.R = i2cd->dev_addr;

+ } else {

+ i2cd->i2c_tagp->IBDR.R = i2cd->dev_addr| I2C_HW_READ;

+ i2cd->state = I2C_MASTER_READ_DUMMY_DATA;

+ }

  } else {

  /* In slave mode it reads until no data on the I2C bus */

  i2cd->i2c_tagp->IBAD.R = dev_addr;

=============

-Best regards,

-Olivier

[Yali Mobilities]

I have replaced those two lines with these condition lines. But it doesn't work. The result as I2C_ERROR_BUS_BUSY.

[ODOUV.1]

Hello,

would you please provide your structure:

-Best regards

Olivier

[Yali Mobilities]

Kindly look into it.