/**
* \brief Application entry point for TRNG example.
*
* Enable the TRNG, display the generated random value.
*
* \return Unused (ANSI-C compatibility).
*/
int main(void)
{
/* Initialize the SAM system */
sysclk_init();
board_init();
/* Configure console UART */
configure_console();
/* Output example information */
printf("-- TRNG Example --\n\r");
printf("-- %s\n\r", BOARD_NAME);
printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
/* Configure PMC */
pmc_enable_periph_clk(ID_TRNG);
/* Enable TRNG */
trng_enable(TRNG);
/* Enable TRNG interrupt */
NVIC_DisableIRQ(TRNG_IRQn);
NVIC_ClearPendingIRQ(TRNG_IRQn);
NVIC_SetPriority(TRNG_IRQn, 0);
NVIC_EnableIRQ(TRNG_IRQn);
trng_enable_interrupt(TRNG);
/* User input loop */
while (1) {
}
}
/**
* \brief Test TRNG setting.
*
* This test sets the TRNG to generate interrupt when new random value is completed.
*
* \param test Current test case.
*/
static void run_trng_test(const struct test_case *test)
{
/* Configure PMC */
pmc_enable_periph_clk(ID_TRNG);
/* Enable TRNG */
trng_enable(TRNG);
/* Enable TRNG interrupt */
NVIC_DisableIRQ(TRNG_IRQn);
NVIC_ClearPendingIRQ(TRNG_IRQn);
NVIC_SetPriority(TRNG_IRQn, 0);
NVIC_EnableIRQ(TRNG_IRQn);
trng_enable_interrupt(TRNG);
while(trng_int_flag == 0);
test_assert_true(test, trng_int_flag == 1, "No random value is generated");
}
