Hi,
I am interfacing an FRAM driver from STM32L452RE using HAL lib. mem_read operation is not sufficient to put the FRAM chip to sleep mode. This requires a restart condition as follows:
[Start][0xF8][Ack][0xA0][Ack][Rep Start][0x86][Ack][Stop]
Here I tried to used the HAL_I2C_Master_Sequential_Transmit_IT API with XferOptions.
uint8_t i2cBuf[] = {0xA0};
HAL_I2C_Master_Sequential_Transmit_IT(&hi2c2, 0xF9, i2cBuf, 1,I2C_FIRST_FRAME);
while (HAL_I2C_GetState(&hi2c2) != HAL_I2C_STATE_READY);
HAL_I2C_Master_Sequential_Transmit_IT(&hi2c2, 0x86, i2cBuf, 0, I2C_LAST_FRAME);
while (HAL_I2C_GetState(&hi2c2) != HAL_I2C_STATE_READY);
Here the problem is after 1st HAL_I2C_Master_Sequential_Transmit_IT a stop condition is getting generated.
Please find the attached sleep mode command for MB85RC512T
I also tried other XferOptions, but nothing seems to work,
Can any one please help me on this.
Regards
NMathew
