Temperature

1 files changed, 59 insertions, 0 deletions

diff --git a/src/fsm/delay.c b/src/fsm/delay.c
new file mode 100644
index 0000000..8c9d24c
--- /dev/null
+++ b/src/fsm/delay.c
@@ -0,0 +1,59 @@
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+
+
+#include <stdint.h>
+#include "stm32f4xx_conf.h"
+#include "stm32f4xx.h"
+
+#ifndef __DELAY_H
+#define __DELAY_H
+
+
+uint32_t delay_multiplier = 1;
+
+void delay_us(uint32_t micros) {
+
+    micros = micros * delay_multiplier - 10;
+    while (micros--);
+}
+
+void delay_ms(uint32_t millis) {
+
+    for (int i = 0; i < 1000; i++) {
+        delay_us(millis);
+    }
+}
+
+void delay_init() {
+
+    RCC_ClocksTypeDef RCC_Clocks;
+    RCC_GetClocksFreq(&RCC_Clocks);
+
+    delay_multiplier = RCC_Clocks.HCLK_Frequency / 4000000;
+
+}
+
+#endif