How to support I2C burst write/read?

[Yiftah]

I wish to configure my STM32 MCU (STM32G071RB) as an I2C slave device, and support I2C burst-write and I2C burst-read, in a similar manner to many I2C slave devices:

(usually the RA value is incremented after every DATA byte)

The I2C receive/transmit functions that are available in the file "stm32g0xx_hal_i2c.c" all require a predetermined buffer size.

Is there a different I2C driver available for supporting burst write/read?

If not, how would you recommend to implement this on the MCU?

[Yiftah · Accepted solution]

Solved.

Took me a while to figure it out, but I think I managed to rewrite the "stm32g0xx_hal_i2c.c" file to support the burst functions.

[JDaup.1]

I have the same problem with a stm32 nucleo and an bosch accelerometer. I need to do a burst write in a register but i can't do it with the HAL_I2C_Mem_Write function. Can you give me some information about your solution ?

[Yiftah]

Hi JDaup.1,

It doesn't sound like the same problem.

Is your Nucleo configured as an I2C slave device?

Best regards,

Yiftah

[JDaup.1]

Hi Yiftah

Thank you for your answer. In fact this is not exactly the same problem because my nucleo is the master and the accelerometer is the slave. I need to do a burst write in an accelerometer register in order to configure some features. How do you manage to do a burst write just by re-write some HAL functions ?

Best regards.

[DJC_23]

Hi JDaup.1,
I am currently experiencing a similar problem. Have you managed to discover a solution for it?