/*********************************************************************//**
* @brief Configure Pin corresponding to specified parameters passed
* in the PinCfg
* @param[in] PinCfg Pointer to a PINSEL_CFG_Type structure
* that contains the configuration information for the
* specified pin.
* @return None
**********************************************************************/
void PINSEL_ConfigPin(PINSEL_CFG_Type *PinCfg)
{
PINSEL_SetPinFunc(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Funcnum);
PINSEL_SetResistorMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->Pinmode);
PINSEL_SetOpenDrainMode(PinCfg->Portnum, PinCfg->Pinnum, PinCfg->OpenDrain);
}
/*********************************************************************//**
* @brief c_entry: Main program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
I2C_M_SETUP_Type transferMCfg;
uint32_t tempp;
uint8_t *pdat;
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
print_menu();
/* I2C block ------------------------------------------------------------------- */
/*
* Init I2C pin connect
*/
#if ((I2CDEV_M == 0))
PINSEL_ConfigPin (5, 2, 5);
PINSEL_ConfigPin (5, 3, 5);
#elif ((I2CDEV_M == 1))
PINSEL_ConfigPin (0, 19, 3);
PINSEL_ConfigPin (0, 20, 3);
PINSEL_SetOpenDrainMode(0, 19, ENABLE);
PINSEL_SetOpenDrainMode(0, 20, ENABLE);
PINSEL_SetPinMode(0, 19, PINSEL_BASICMODE_PLAINOUT);
PINSEL_SetPinMode(0, 20, PINSEL_BASICMODE_PLAINOUT);
#elif ((I2CDEV_M == 2)&& (_CURR_USING_OEM_BRD != LPC4088_OEM_BOARD))
PINSEL_ConfigPin (0, 10, 2);
PINSEL_ConfigPin (0, 11, 2);
PINSEL_SetOpenDrainMode(0, 10, ENABLE);
PINSEL_SetOpenDrainMode(0, 11, ENABLE);
PINSEL_SetPinMode(0, 10, PINSEL_BASICMODE_PLAINOUT);
PINSEL_SetPinMode(0, 11, PINSEL_BASICMODE_PLAINOUT);
#else
#error "Please choose the correct peripheral."
#endif
// Initialize Slave I2C peripheral
I2C_Init((en_I2C_unitId)I2CDEV_M, 100000);
/* Enable Slave I2C operation */
I2C_Cmd((en_I2C_unitId)I2CDEV_M, I2C_MASTER_MODE, ENABLE);
/* Transmit -------------------------------------------------------- */
_DBG_("Press '1' to transmit");
while (_DG != '1');
/* Initialize buffer */
Buffer_Init(1);
_DBG_("Transmit Data: ");
Buffer_Print((uint8_t*)Master_Buf, sizeof(Master_Buf));
/* Start I2C slave device first */
transferMCfg.sl_addr7bit = I2CDEV_S_ADDR;
transferMCfg.tx_data = Master_Buf;
transferMCfg.tx_length = sizeof(Master_Buf);
transferMCfg.rx_data = NULL;
transferMCfg.rx_length = 0;
transferMCfg.retransmissions_max = 3;
transferMCfg.tx_count = 0;
transferMCfg.rx_count = 0;
transferMCfg.retransmissions_count = 0;
#if (I2CDEV_TRANSFER_POLLING == 0)
complete = FALSE;
I2C_MasterTransferData((en_I2C_unitId)I2CDEV_M, &transferMCfg, I2C_TRANSFER_INTERRUPT);
while(!complete) ;
#else
I2C_MasterTransferData((en_I2C_unitId)I2CDEV_M, &transferMCfg, I2C_TRANSFER_POLLING);
#endif
/* Receive -------------------------------------------------------- */
_DBG_("Press '2' to receive");
while(_DG != '2');
/* Initialize buffer */
Buffer_Init(0);
/* Start I2C slave device first */
transferMCfg.sl_addr7bit = I2CDEV_S_ADDR;
transferMCfg.tx_data = NULL ;
transferMCfg.tx_length = 0;
transferMCfg.rx_data = Master_Buf;
transferMCfg.rx_length = sizeof(Master_Buf);
transferMCfg.retransmissions_max = 3;
transferMCfg.tx_count = 0;
transferMCfg.rx_count = 0;
transferMCfg.retransmissions_count = 0;
#if (I2CDEV_TRANSFER_POLLING == 0)
complete = FALSE;
I2C_MasterTransferData((en_I2C_unitId)I2CDEV_M, &transferMCfg, I2C_TRANSFER_INTERRUPT);
while(!complete) ;
#else
I2C_MasterTransferData((en_I2C_unitId)I2CDEV_M, &transferMCfg, I2C_TRANSFER_POLLING);
#endif
pdat = (uint8_t*)Master_Buf;
_DBG_("Receive Data: ");
Buffer_Print((uint8_t*)Master_Buf, sizeof(Master_Buf));
// Verify
for (tempp = 0; tempp < sizeof(Master_Buf); tempp++){
if (*pdat != (tempp)){
_DBG_("Verify error ");
break;
}
pdat++;
}
if (tempp == sizeof(Master_Buf)){
_DBG_("Verify successfully");
}
/* Transmit and receive -------------------------------------------------------- */
_DBG_("Press '3' to Transmit, then repeat start and receive...");
while (_DG != '3');
/* Initialize buffer */
Buffer_Init(0);
master_test[0] = 0xAA;
master_test[1] = 0x55;
/* Start I2C slave device first */
transferMCfg.sl_addr7bit = I2CDEV_S_ADDR;
transferMCfg.tx_data = master_test ;
transferMCfg.tx_length = sizeof(master_test);
transferMCfg.rx_data = Master_Buf;
transferMCfg.rx_length = sizeof(Master_Buf);
transferMCfg.tx_count = 0;
transferMCfg.rx_count = 0;
transferMCfg.retransmissions_count = 0;
transferMCfg.retransmissions_max = 3;
#if (I2CDEV_TRANSFER_POLLING == 0)
complete = FALSE;
I2C_MasterTransferData((en_I2C_unitId)I2CDEV_M, &transferMCfg, I2C_TRANSFER_INTERRUPT);
while(!complete) ;
#else
I2C_MasterTransferData((en_I2C_unitId)I2CDEV_M, &transferMCfg, I2C_TRANSFER_POLLING);
#endif
pdat = (uint8_t*)Master_Buf;
_DBG_("Transmit Data: ");
Buffer_Print((uint8_t*)master_test, sizeof(master_test));
_DBG_("Receive Data: ");
Buffer_Print((uint8_t*)Master_Buf, sizeof(Master_Buf));
// Verify
for (tempp = 0; tempp < sizeof(Master_Buf); tempp++){
if (*pdat++ != tempp){
_DBG_("Verify error: ");
break;
}
}
if (tempp == sizeof(Master_Buf)){
_DBG_("Verify successfully");
}
I2C_DeInit((en_I2C_unitId)I2CDEV_M);
/* Loop forever */
while(1);
}
