MSP430F149; SMCLK and uart clock

The CALDCO settings are no compiler-specific things. These are references to a memory location inside the MSP where TI has stored the device-specific calibraiton settings after testing each separate device.

The 1x series does not have this kind of calibration data and the 5x series does not have it anymore as it has a hardware-calibrated 32khz clock and an FLL instead which is quite es good as teh calibration data but works for any destination frequency.

There is no way to 'know' the actual workign frequency of an 1.x MSP. On my own 1611 based MSP projects (and the older1232 based projects) I used an external 8MHz quartz crystal and did have an (more or less) exact SMCLK of 1MHz.

Anyway, if you know the exact MSCLK frequency, you can calculate the required divider and modulation settings with a formula tthat is somewhere in the users guide.

Here's a code snippet that did its job for the 1611 with any baudrate up to 115200 Bd.

  unsigned int divider;
  long threshold, rest, fraction=0, smclock = SMCLK;
 unsigned char i, mod=0;
  smclock = 1048576L; // the real SMCLK frequency, device specific
// calculate main clock divider
  divider= smclock / baudrate;
// calculate bitclock modulation byte
  threshold=baudrate/2;
  rest= smclock - (baudrate * (unsigned long)divider);
  for(i=0;i<8;i++){
    fraction+=rest;
    mod>>=1;
    if(fraction>threshold) {mod|=128; fraction-=baudrate;}
  }

        U0CTL  = SWRST;                            // reset UART
        U0CTL |= CHAR;                             // 8-bit character
        U0TCTL = SSEL_SMCLK;                     // UCLK = SMCLK
        U0BR0 = (unsigned char)(divider>>0);
        U0BR1 = (unsigned char)(divider>>8);
        U0MCTL = mod;                              // calculated bit clock modulation
        U0ME |= UTXE0 | URXE0;                     // Enabled USART0 TXD/RXD
        U0CTL &= ~SWRST;                           // Initalize USART state machine
        U0IE |= URXIE0;                            // enable interrupts
        U0IE |= UTXIE0;

For your SMCLK value, the settings are 0x09/0x00 for U0BRx and U0MCTL = 0x10.
Or in your case, change U0 to U1 everywhere.