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[sw] update example programs

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stnolting 2024-03-23 16:15:47 +01:00
parent 2a28c8dea5
commit 370e515d1e
3 changed files with 6 additions and 24 deletions
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4
sw/example/demo_trng/main.c
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@ -3,7 +3,7 @@
// # ********************************************************************************************* #
// # BSD 3-Clause License #
// # #
// # Copyright (c) 2023, Stephan Nolting. All rights reserved. #
// # Copyright (c) 2024, Stephan Nolting. All rights reserved. #
// # #
// # Redistribution and use in source and binary forms, with or without modification, are #
// # permitted provided that the following conditions are met: #
@ -98,7 +98,7 @@ int main(void) {
// enable TRNG
neorv32_uart0_printf("\nTRNG FIFO depth: %i\n", neorv32_trng_get_fifo_depth());
neorv32_uart0_printf("Starting TRNG...\n");
neorv32_trng_enable(0); // no interrupts
neorv32_trng_enable();
neorv32_cpu_delay_ms(100); // TRNG "warm up"
while(1) {

22
sw/example/demo_wdt/main.c
View file

@ -3,7 +3,7 @@
// # ********************************************************************************************* #
// # BSD 3-Clause License #
// # #
// # Copyright (c) 2023, Stephan Nolting. All rights reserved. #
// # Copyright (c) 2024, Stephan Nolting. All rights reserved. #
// # #
// # Redistribution and use in source and binary forms, with or without modification, are #
// # permitted provided that the following conditions are met: #
@ -52,17 +52,6 @@
/**@}*/
/**********************************************************************//**
* Watchdog FIRQ handler - executed when the WDT has reached half of
* the configured timeout interval.
**************************************************************************/
void wdt_firq_handler(void) {
neorv32_cpu_csr_clr(CSR_MIP, 1<<WDT_FIRQ_PENDING); // clear/ack pending FIRQ
neorv32_uart0_puts("WDT IRQ! Timeout imminent!\n");
}
/**********************************************************************//**
* Main function
*
@ -109,14 +98,6 @@ int main() {
}
// configure and enable WDT interrupt
// this IRQ will trigger when half of the configured WDT timeout interval has been reached
neorv32_uart0_puts("Configuring WDT interrupt...\n");
neorv32_rte_handler_install(WDT_RTE_ID, wdt_firq_handler);
neorv32_cpu_csr_set(CSR_MIE, 1 << WDT_FIRQ_ENABLE); // enable WDT FIRQ channel
neorv32_cpu_csr_set(CSR_MSTATUS, 1 << CSR_MSTATUS_MIE); // enable machine-mode interrupts
// compute WDT timeout value
// - the WDT counter increments at f_wdt = f_main / 4096
uint32_t timeout = WDT_TIMEOUT_S * (NEORV32_SYSINFO->CLK / 4096);
@ -146,5 +127,6 @@ int main() {
neorv32_cpu_sleep();
}
return 0; // will never be reached
}

4
sw/example/game_of_life/main.c
View file

@ -3,7 +3,7 @@
// # ********************************************************************************************* #
// # BSD 3-Clause License #
// # #
// # Copyright (c) 2023, Stephan Nolting. All rights reserved. #
// # Copyright (c) 2024, Stephan Nolting. All rights reserved. #
// # #
// # Redistribution and use in source and binary forms, with or without modification, are #
// # permitted provided that the following conditions are met: #
@ -124,7 +124,7 @@ int main(void) {
// check if TRNG was synthesized
if (neorv32_trng_available()) {
neorv32_uart0_printf("\nTRNG detected. Using TRNG for universe initialization.\n");
neorv32_trng_enable(0);
neorv32_trng_enable();
trng_available = 1;
}