Medsimo

Allocate an NDEF_TXT object first instead of just composing your "Value" variable and trying to send it directly over the NFC:
NDEF_TXT t("es", Value.c_str()); int ndef_size = t.sendTo(nfc); nfc.setDataLength(ndef_size) Note the first string in the NDEF_TXT constructor is the language code describing the language used for the text.

Is this homework for school?

I used the 1294 Tiva as an example. I mentioned this in the post above.
 

Quick calculation:
Max system clock TivaC-1294: 120Mhz
PWM divisors: /2,/4,/8,/16,/32,/64
PWM bits: 16
Min PWM frequency @120Mhz: 
Slowest PWM clock : 120/64 = 1.875Mhz
Max PWM load value = 65535(16-bit)
Minimum PWM frequency = 65536/1875000 = 0.02495 seconds
Inverse : 1/0.023495 = 28.6Hz.
Max PWM frequency @120Mhz: 
Fastest PWM clock : 120Mhz
Min PWM load value = 2 - so that you can add 1 to the load value to get 50% duty.
Maximum PWM frequency = 2/120000000 = 1.67e-8 seconds
Inverse : 1/1.67e-8 = 60MHz.

It seems that there is a data type mismatch between whatever code is calling the SPI API's and the SPI library. Where did the ZBooster library come from?

I didn't get it working with Anaren ZigBee
 
So I used Digi XBee modules (XBee S2C) with TI TM4C129 on Energia
 
This code should help you getting started. Connect the Xbee TX, RX to TI RX, TX respectively ( I used UART3 of TI) and GND, 3.3V for power.

I have similary problems ... i need start up comunication with energia, but i can't.

can you help me lilyhack.