I2c transmit 6 sets of data

[woldes]

Hi there i m trying to work on i2c code, can someone help how to code i2c to transmit 5 data like below, thx.

uint8_tTxdata[6] = {0x1,0x2,0x3,0x4,0x5,0x6};

[GolamMostafa]

Which Arduino you are using?

[jim-p]

In the IDE, click on File->Examples->Wire->master_writer
That sketch shows the basics on how to use I2C to send data.

For more information go here

Wire - Arduino Reference

[Willem43]

Following onto the above advice here is an example, this initializes a DS1307 RTC to 11:55:00 AM.

  uint8_t DSinit[3] = {0x00, 0x55, 0x51};
  Wire.beginTransmission(DS1307Addr);
  Wire.write(0x00);           // Write starting register
  Wire.write(DSinit,3);       // Write 3 values to DS1307 sequential registers
  Wire.endTransmission();

I do not know what you are writing to, but writing to sequential registers must be enabled/available.

[woldes]

I m using UNO as master to send 6 bytes of data out using i2c, to STM32H7 as slave.. STM32 i2c will receive these 6 bytes of data without triggering the NACK response...