REG_CR = 0; /* disable UART */
/* disable pullups for GPIO 14 & 15 */
gpio_pullups(0xc000, 0, PUD_DISABLE);
/* select alt0 function for GPIO 14 & 15 */
REG_CR = 0; /* disable UART */
/* disable pullups for GPIO 14 & 15 */
gpio_pullups(0xc000, 0, PUD_DISABLE);
/* select alt0 function for GPIO 14 & 15 */