From: AceVest <zhaoyanbai@126.com>
Date: Mon, 27 May 2019 08:32:16 +0000 (+0800)
Subject: SysTick Delay
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zpipe.c?a=commitdiff_plain;h=a46921e1eeb693cb1b2e4d1155d3b8ad30940266;p=acecode.git

SysTick Delay
---

diff --git a/learn/stm32/F103/.settings/language.settings.xml b/learn/stm32/F103/.settings/language.settings.xml
index f90e2ce..5ccf38d 100644
--- a/learn/stm32/F103/.settings/language.settings.xml
+++ b/learn/stm32/F103/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" console="false" env-hash="-1540645472206959902" id="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="Ac6 SW4 STM32 MCU Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" console="false" env-hash="-1481427363850259294" id="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="Ac6 SW4 STM32 MCU Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" console="false" env-hash="-1540645472206959902" id="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="Ac6 SW4 STM32 MCU Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" console="false" env-hash="-1481427363850259294" id="fr.ac6.mcu.ide.build.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="Ac6 SW4 STM32 MCU Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/learn/stm32/F103/F103 Run.cfg b/learn/stm32/F103/F103 Run.cfg
index 0102e6a..023afef 100644
--- a/learn/stm32/F103/F103 Run.cfg	
+++ b/learn/stm32/F103/F103 Run.cfg	
@@ -3,7 +3,7 @@
 # Generated by System Workbench for STM32
 # Take care that such file, as generated, may be overridden without any early notice. Please have a look to debug launch configuration setup(s)
 
-source [find interface/stlink-tcp.cfg]
+source [find interface/stlink.cfg]
 
 set WORKAREASIZE 0x5000
 
diff --git a/learn/stm32/F103/src/main.c b/learn/stm32/F103/src/main.c
index e87669d..20439a6 100644
--- a/learn/stm32/F103/src/main.c
+++ b/learn/stm32/F103/src/main.c
@@ -19,6 +19,8 @@ unsigned int pin = 9;
 void SystemInit() {
 	InitSystemClock();
 
+	InitSysTick();
+
 	// 使能时钟
 	RCCEnableGPIOBClock();
 
@@ -26,10 +28,7 @@ void SystemInit() {
 }
 
 void delay() {
-	Delay();
-	return;
-	int i=965536;
-	while(i--);
+	Delay(200);
 }
 
 int main() {
diff --git a/learn/stm32/F103/src/systick.c b/learn/stm32/F103/src/systick.c
index 646efc6..6fd6a4f 100644
--- a/learn/stm32/F103/src/systick.c
+++ b/learn/stm32/F103/src/systick.c
@@ -24,13 +24,41 @@
 #define SYSTICK_CTRL_ENABLE_MASK	(1 << SYSTICK_CTRL_ENABLE_POS)
 #define SYSTICK_CTRL_ENABLE 		(1 << SYSTICK_CTRL_ENABLE_POS)
 
-void Delay() {
+uint32_t gSysTickCnt = 0;
+void SysTick_Handler() {
+	gSysTickCnt++;
+}
+
+// 每1ms触发一次SysTick中断
+void InitSysTick() {
+	SysTick->CTRL &= ~SYSTICK_CTRL_ENABLE_MASK;
+	SysTick->CTRL &= ~SYSTICK_CTRL_TICKINT_MASK;
+	SysTick->CTRL &= ~SYSTICK_CTRL_CLKSOURCE_MASK;
+
+
+	SysTick->LOAD = 9000;
+	SysTick->VAL  = 0;
+
+
+	SysTick->CTRL |= SYSTICK_CTRL_ENABLE | SYSTICK_CTRL_TICKINT_ENABLE;
+}
+
+void Delay(uint32_t ms) {
+	gSysTickCnt = 0;
+	while(gSysTickCnt < ms) {
+
+	}
+}
+
+// 非中断版本的Delay
+// ms 最大值为1864
+void NoneIntDelay(uint32_t ms) {
 	SysTick->CTRL &= ~SYSTICK_CTRL_ENABLE_MASK;
 	SysTick->CTRL &= ~SYSTICK_CTRL_TICKINT_MASK;
 	SysTick->CTRL &= ~SYSTICK_CTRL_CLKSOURCE_MASK;
 
 
-	SysTick->LOAD = 9000*1000; // 1000ms
+	SysTick->LOAD = 9000*ms;
 	SysTick->VAL  = 0;
 
 
diff --git a/learn/stm32/F103/src/systick.h b/learn/stm32/F103/src/systick.h
index ac32069..51821b3 100644
--- a/learn/stm32/F103/src/systick.h
+++ b/learn/stm32/F103/src/systick.h
@@ -20,6 +20,7 @@ typedef struct {
 
 #define SysTick ((SysTick_t*) 0xE000E010)
 
-
-void Delay();
+void InitSysTick();
+void Delay(uint32_t ms);
+void NoneIntDelay(uint32_t ms);
 #endif /* SYSTICK_H_ */