PROCESS_THREAD(sd_test, event, data) { static unsigned long iter; static unsigned long offset; char buf[BUF_SIZE]; static struct etimer et; int r, buflen; PROCESS_BEGIN(); etimer_set(&et, CLOCK_SECOND / 16); offset = 0; for(iter = 1;; iter++) { PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et)); memset(buf, 0, sizeof(buf)); buflen = sprintf(buf, "(%ld) Testing the SD card (%ld)", iter, iter); if((iter & 7) == 0) { offset = random_rand() & 0xffff; } else { offset += random_rand() & 0xff; } r = sd_write(offset, buf, buflen + 1); if(r > 0) { memset(buf, 0, sizeof(buf)); r = sd_read(offset, buf, buflen + 1); if(r > 0) { printf("read %s (offset %lu)\n", buf, offset); } else { printf("read error: %d (%s)\n", r, sd_error_string(r)); } } else { printf("write error: %d (%s)\n", r, sd_error_string(r)); } etimer_restart(&et); } PROCESS_END(); }
int main(void) { #if WITH_SD int r; #endif /* WITH_SD */ msp430_cpu_init(); watchdog_stop(); /* Platform-specific initialization. */ msb_ports_init(); adc_init(); clock_init(); rtimer_init(); sht11_init(); leds_init(); leds_on(LEDS_ALL); irq_init(); process_init(); /* serial interface */ rs232_set_input(serial_line_input_byte); rs232_init(); serial_line_init(); uart_lock(UART_MODE_RS232); uart_unlock(UART_MODE_RS232); #if WITH_UIP slip_arch_init(BAUD2UBR(115200)); #endif #if WITH_SD r = sd_initialize(); if(r < 0) { printf("Failed to initialize the SD driver: %s\n", sd_error_string(r)); } else { sd_offset_t capacity; printf("The SD driver was successfully initialized\n"); capacity = sd_get_capacity(); if(capacity < 0) { printf("Failed to get the SD card capacity: %s\n", sd_error_string(r)); } else { printf("SD card capacity: %u MB\n", (unsigned)(capacity / (1024UL * 1024))); } } #endif /* System services */ process_start(&etimer_process, NULL); ctimer_init(); node_id_restore(); init_net(); energest_init(); #if PROFILE_CONF_ON profile_init(); #endif /* PROFILE_CONF_ON */ leds_off(LEDS_ALL); printf(CONTIKI_VERSION_STRING " started. Node id %u, using %s.\n", node_id, rime_mac->name); autostart_start(autostart_processes); /* * This is the scheduler loop. */ ENERGEST_ON(ENERGEST_TYPE_CPU); while (1) { int r; #if PROFILE_CONF_ON profile_episode_start(); #endif /* PROFILE_CONF_ON */ do { /* Reset watchdog. */ watchdog_periodic(); r = process_run(); } while(r > 0); #if PROFILE_CONF_ON profile_episode_end(); #endif /* PROFILE_CONF_ON */ /* * Idle processing. */ int s = splhigh(); /* Disable interrupts. */ if (process_nevents() != 0) { splx(s); /* Re-enable interrupts. */ } else { static unsigned long irq_energest = 0; /* Re-enable interrupts and go to sleep atomically. */ ENERGEST_OFF(ENERGEST_TYPE_CPU); ENERGEST_ON(ENERGEST_TYPE_LPM); /* * We only want to measure the processing done in IRQs when we * are asleep, so we discard the processing time done when we * were awake. */ energest_type_set(ENERGEST_TYPE_IRQ, irq_energest); if (uart_edge) { _BIC_SR(LPM1_bits + GIE); } else { _BIS_SR(LPM1_bits + GIE); } /* * We get the current processing time for interrupts that was * done during the LPM and store it for next time around. */ dint(); irq_energest = energest_type_time(ENERGEST_TYPE_IRQ); eint(); ENERGEST_OFF(ENERGEST_TYPE_LPM); ENERGEST_ON(ENERGEST_TYPE_CPU); #if PROFILE_CONF_ON profile_clear_timestamps(); #endif /* PROFILE_CONF_ON */ } } return 0; }