Sorry, it's late, I don't make much sense past 1 AM.
I mean, I set stdout_serial_port = SERIAL_PORT_ONE and instead wrote a simple function to take a C-style string and write it to the TTL port one byte at a time. i.e.
Code:
void cmucam_write_buf(const rom unsigned char *buf)
{
int i;
for(i = 0; i < strlen(buf); i++)
cmucam_write( buf[i] );
}
cmucam_write_buf("tc 210 240 210 240 210 240\r");