/* * Copyright © 2014 Keith Packard * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include #define AO_TRNG_SPI_BUS 1 #define AO_TRNG_SPI_SPEED AO_SPI_SPEED_250kHz static void ao_trng_test(void) { static uint8_t random[32]; uint8_t i; ao_spi_get(AO_TRNG_SPI_BUS, AO_TRNG_SPI_SPEED); ao_spi_recv(random, sizeof (random), AO_TRNG_SPI_BUS); ao_spi_put(AO_TRNG_SPI_BUS); for (i = 0; i < sizeof (random); i++) printf (" %02x", random[i]); printf ("\n"); } static const struct ao_cmds ao_trng_cmds[] = { { ao_trng_test, "R\0Dump some random numbers" }, { 0, NULL } }; void main(void) { ao_clock_init(); ao_task_init(); ao_timer_init(); ao_spi_init(); ao_usb_init(); ao_serial_init(); ao_led_init(LEDS_AVAILABLE); ao_led_on(AO_LED_GREEN); ao_cmd_init(); ao_cmd_register(ao_trng_cmds); ao_start_scheduler(); }