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Tool/software: TI C/C++ Compiler
Hi,
we referring the code snippet of psdk_rtos_auto_j7_06_02_00_21 to access the i2c data.
do we need to follow any other sequence to access the I2C devices.?
we need to access the WKUP_I2C0 - Do we need to do any PIN configuration for this.?
Is there any register configuration is there to access the I2C lines ?
Code Snippet:
uint16_t index;
I2C_Params i2cParams;
I2C_HwAttrs i2cConfig;
#if ((defined(SOC_J721E)) && (defined (__aarch64__)))
/* Enabling MCU I2C */
enableI2C(CSL_MCU_I2C0_CFG_BASE);
#endif
for(index = 0; index < I2C_HWIP_MAX_CNT; index++)
{
I2C_socGetInitCfg(index, &i2cConfig);
i2cConfig.enableIntr = false;
I2C_socSetInitCfg(index, &i2cConfig);
}
/* Initializes the I2C */
I2C_init();
/* Initializes the I2C Parameters */
I2C_Params_init(&i2cParams);
#if ((defined(SOC_AM65XX)) || (defined(SOC_J721E)))
i2cParams.bitRate = I2C_400kHz;
#endif
/* Configures the I2C instance with the passed parameters*/
handle = I2C_open(I2C_INSTANCE, &i2cParams);
if(handle == NULL)
{
AppUtils_Printf(APP_UTILS_PRINT_MSG_NORMAL,"\n I2C Open failed!\n");
}
Hi Stanley,
Thanks for your response,
We need some more information about I2C Instance,
For Example,
In MCU Domain I2C, 3 devices are connected, PMIC,IO Expander, IMU Chip,
How the instance will vary based one slave devices?
we started using below API to access I2C Devices, is that fine to use ?
Board_getI2CHandle(BOARD_SOC_DOMAIN_WKUP,
BOARD_I2C_PMIC_INSTANCE);
Board_getI2CHandle()
Board_i2c8BitRegRd()
Hi Muthu,
If there is any further discussion needed, let's continue in private forum.
Regards,
Stanley