Hello Every one ,
I am trying to use I2c based LCD with stm8s003f3 controller. the write i2c address is 0x3f
I am struck at a point ,the code is stopped in endless loop in below function
void PCF8574_write(unsigned char data_byte)
{
I2C_GenerateSTART(ENABLE);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(PCF8574_address, I2C_DIRECTION_TX);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(data_byte);
while(!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_GenerateSTOP(ENABLE);
}
When i have debbuge the above function i saw that it was getting I2C-> SR1 = 0 but it should be 1.
clock frequency is 100 Khz
I2C address is 0x3F
I have also try to change i2c address but it is showing same problem.
Please tell me if i am forget any specific things to declare
