Initial commit

2025-08-17 17:16:11 +00:00 · 2020-02-07 14:57:44 +01:00
commit 836e321549
551 changed files with 113644 additions and 0 deletions
--- a/Src/systick.c
+++ b/Src/systick.c
@@ -0,0 +1,108 @@
+/*!
+    \file  systick.c
+    \brief the systick configuration file
+
+    \version 2016-01-15, V1.0.0, demo for GD32F1x0
+    \version 2016-05-13, V2.0.0, demo for GD32F1x0
+    \version 2019-11-20, V3.0.0, demo for GD32F1x0
+*/
+
+/*
+    Copyright (c) 2019, GigaDevice Semiconductor Inc.
+
+    Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice, this 
+       list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice, 
+       this list of conditions and the following disclaimer in the documentation 
+       and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holder nor the names of its contributors 
+       may be used to endorse or promote products derived from this software without 
+       specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+OF SUCH DAMAGE.
+*/
+
+#include "gd32f1x0.h"
+#include "systick.h"
+
+volatile static uint32_t delay;
+volatile static unsigned long tick_count_ms = 0;
+
+/*!
+    \brief      configure systick
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void systick_config(void)
+{
+    /* setup systick timer for 1000Hz interrupts  */
+    if (SysTick_Config(SystemCoreClock / 1000)){
+        /* capture error */
+        while (1){
+        }
+    }
+    /* configure the systick handler priority */
+    NVIC_SetPriority(SysTick_IRQn, 0x00);
+}
+
+/*!
+    \brief      delay a time in milliseconds
+    \param[in]  count: count in milliseconds
+    \param[out] none
+    \retval     none
+*/
+void delay_1ms(uint32_t count)
+{
+    delay = count;
+
+    while(0 != delay){
+    }
+}
+
+/*!
+    \brief      delay decrement
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void delay_decrement(void)
+{
+    if (0 != delay){ 
+        delay--;
+    }
+}
+
+/*!
+    \brief      tick count increment in ms
+    \param[in]  none
+		\param[out] none
+    \retval     none
+*/
+void tick_count_increment()
+{
+		tick_count_ms++;
+}
+
+/*!
+    \brief      get tick count in ms
+    \param[in]  *count: pointer to count
+		\param[out] none
+    \retval     none
+*/
+void get_tick_count_ms(unsigned long *count)
+{
+		*count = tick_count_ms;
+}