I Need Simple I2C Example

skb — Thu, 26 Aug 2021 10:25:45 GMT

Hello everyone,

it is very hard to make a initilaize code using NXP,

I want to make a I2C code.

in IDE, s32k116_Project_LPI2C project shows that I2C example.

but, it is not work. there is no pulse feedback in PTA2 and PTA3 pin(SDA,SDL)

I looking for some code to communicate Master - Slve, easily

I'm already make a code by using ST HAL library.

I using I2C I/O Expander IC TCA9539.

slve address 0x74 because A0, A1 is low.

And I sand 0xE9 to use it only read mode.

I make it follow code.

uint8_t data[16];
HAL_I2C_Master_Transmit(&hi2c1, 0x74, data, 16, 10); //Awake
HAL_Delay(1); // Delay
HAL_I2C_Master_Transmit(&hi2c1, 0xE9, data, 16, 10); // Set data readonly
HAL_Delay(1); // delay
HAL_I2C_Master_Receive(&hi2c1, 0xE9, data, 16, 10); // read data from IC

please,,, I want make code like that.. How can I?

Re: I Need Simple I2C Example

Robin_Shen — Fri, 27 Aug 2021 03:24:57 GMT

Hi skb,

s32k116_Project_LPI2C is none SDK example. Recommend you refer the lpi2c_master_s32k116 and lpi2c_slave_s32k116, which can be found in S32SDK S32K1xx RTM v3.0.0 Examples Projects.

Best Regards,
Robin
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I Need Simple I2C Example

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