I2C send_data

[aymen]

Posted on June 06, 2016 at 09:28

hi,

I'm using stm32f103rct6 to communicate with OPT3001 sensors.I use I2C1 for the configurationto read data from 16bits register it's done but I have problem to send 16bits data.I used this function when I tried to read the same register I find juste one Byte.void I2C_SendData(I2C_TypeDef* I2Cx, uint8_t Data){  /* Check the parameters */  assert_param(IS_I2C_ALL_PERIPH(I2Cx));  /* Write in the DR register the data to be sent */  I2Cx->DR = Data;}have any one solution?thanks

[Radosław]

Posted on June 06, 2016 at 10:10

I2C protocol don't supprort 16-bit data.

I2Cx->DR is 8-bit.

[aymen]

Posted on June 06, 2016 at 10:18SO?I can't use stm32f10x ?

[Radosław]

Posted on June 06, 2016 at 11:32

SO read bytes....  

[Tesla DeLorean]

Posted on June 06, 2016 at 13:20

So break the 16-bit word into high and low bytes and send the after each other.