MSP430FR4133: MSP430FR4133

Part Number:MSP430FR4133

Hi,

We are using MSP430FR4133 connected to an Accelerometer vis I2C bus.

We are using IAR 8

We would like to use P5 PIN2 and 3  or P8 PIN2 and 3 - please advice which is preferred.

We are trying to use EUSCI library - with no success:

This part pass:

EUSCI_B_I2C_initMasterParam param = {0};
param.selectClockSource = EUSCI_B_I2C_CLOCKSOURCE_ACLK;
param.i2cClk = CS_getACLK();
param.dataRate = EUSCI_B_I2C_SET_DATA_RATE_100KBPS;
param.byteCounterThreshold = 1;
param.autoSTOPGeneration = EUSCI_B_I2C_NO_AUTO_STOP;
EUSCI_B_I2C_initMaster(EUSCI_B0_BASE, &param);

Not clear how to config the physical PINs  (is that correct?)

EUSCI_B_I2C_remapPins(EUSCI_B0_BASE,2+3 );

GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P5 ,GPIO_PIN2 + GPIO_PIN3,GPIO_SECOND

This part also pass:

// EUSCI B I2C enableInterrupt(EUSCI_B0_BASE, EUSCI_B_I2C_TRANSMIT_INTERRUPT0 + EUSCI_B_I2C_STOP_INTERRUPT);
// Specify slave address
EUSCI_B_I2C_setSlaveAddress(EUSCI_B0_BASE, 0x0D);//SLAVE_ADDRESS);

//Set Master in TX mode
EUSCI_B_I2C_setMode(EUSCI_B0_BASE, EUSCI_B_I2C_TRANSMIT_MODE);

//Enable I2C Module to start operations
EUSCI_B_I2C_enable(EUSCI_B0_BASE);
 

And then I stock on this line:

EUSCI_B_I2C_masterSendSingleByte(EUSCI_B0_BASE,0x00);

Please advise.

In case you have a [pre[ared example I for MSP430FR4133 I would appreciate that.

BR,

Shimon