diff options
Diffstat (limited to 'src/wiring/time.c')
-rw-r--r-- | src/wiring/time.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/src/wiring/time.c b/src/wiring/time.c deleted file mode 100644 index 164d978..0000000 --- a/src/wiring/time.c +++ /dev/null @@ -1,72 +0,0 @@ -/* ***************************************************************************** - * 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, either version 3 of the License, or - * (at your option) any later version. - * - * 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, see <http://www.gnu.org/licenses/>. - * - * Created: 12/18/09 02:41:36 - * Copyright (c) 2009 Perry L. Hung. All rights reserved. - * - * ****************************************************************************/ - -/** - * @file time.c - * - * @brief - */ - -#include "libmaple.h" -#include "systick.h" -#include "time.h" - -#define CYCLES_PER_MICROSECOND 72 -#define FUDGE 42 - -extern volatile uint32_t systick_timer_millis; - -unsigned long millis() { - unsigned long m; - m = systick_timer_millis; - return m; -} - -void delay(unsigned long ms) -{ - unsigned long start = millis(); - - while (millis() - start <= ms) - ; -} - - - -#if 1 -void delayMicroseconds(uint32_t us) { - uint32_t target; - uint32_t last, cur, count; - /* fudge factor hacky hack hack for function overhead */ - target = us * CYCLES_PER_MICROSECOND - FUDGE; - - /* Get current count */ - last = systick_get_count(); - cur = systick_get_count(); - count = last; - while ((count-cur) <= target) { - cur = systick_get_count(); - - /* check for overflow */ - if (cur > last) { - count += MAPLE_RELOAD_VAL; - } - last = cur; - } -} -#endif |