We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
hi im using lpc1768 to communicate with mpu6050 and i have some problems with i2c protocol and im not sure what it is about. actually i cant send and receive any data.i put my codes below and the first part is setting of i2c and the second part is my code to send data.
* Init I2C pin connect */ PinCfg.OpenDrain = 0; PinCfg.Pinmode = 0; PinCfg.Funcnum = 1; PinCfg.Pinnum = 27; PinCfg.Portnum = 0; PINSEL_ConfigPin(&PinCfg1);//SDA0 PinCfg.Pinnum = 28; PINSEL_ConfigPin(&PinCfg1);//SCL0 // Initialize I2C peripheral I2C_Init(LPC_I2C0, 10000); /* Configure interrupt for I2C in NVIC of ARM core */ /* Disable I2C0 interrupt */ NVIC_DisableIRQ(I2C0_IRQn); /* preemption = 1, sub-priority = 0 */ NVIC_SetPriority(I2C0_IRQn, ((0x01<<3)|0x01)); /* Enable I2C operation */ I2C_Cmd(LPC_I2C0, ENABLE);
second part :
txsetup.sl_addr7bit = 0xA0; txsetup.tx_data = &BusAddres; txsetup.tx_length = 8; txsetup.retransmissions_max = 3; I2C_MasterTransferData(LPC_I2C0,&txsetup, I2C_TRANSFER_POLLING); txsetup.tx_data = &Reg; I2C_MasterTransferData(LPC_I2C0,&txsetup, I2C_TRANSFER_POLLING); txsetup.tx_data = &Data; I2C_MasterTransferData(LPC_I2C0,&txsetup, I2C_TRANSFER_POLLING);
thank u all..