BUS Shield ARCAN Problems

Hi everyone, I have some problems with Arcan Shield library (http://forja.rediris.es/frs/download.php/1222/ArCan_v1.00.tar.gz).
I'm trying the examples of TX/RX transmission that I found on the website (www.arcan.es).

I made a test this morning.

File ArCan.cpp
boolean tArCan::init(void)
{
// Hacemos un reset por soft al mcp2515
// Despues del reset entra en modo de configuracion
digitalWrite(ArCan_CS,LOW);
spi_putc(SPI_RESET);
digitalWrite(ArCan_CS,HIGH);

// Esperamos un poco para que se estabilize el mcp2515 despues del reset
delay(20);

// load CNF1..3 Register
digitalWrite(ArCan_CS,LOW);
Serial.write("TRY1");
spi_putc(SPI_WRITE);
Serial.write("TRY2");

Arduino Serial Console printed string "TRY1", but didn't print string "TRY2".

I hope someone can help me.
Bye.