mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-08-31 07:28:37 -04:00
Introduce a port for T-HEAD CK802. A simple demo for T-HEAD CB2201 is also included.
This commit is contained in:
Yuhui.Zheng
parent
d2914041f8
commit
0d95aca202
125 changed files with 23809 additions and 0 deletions
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@ -0,0 +1,59 @@
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<?xml version="1.0" encoding="UTF-8"?>
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||||
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||||
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@ -0,0 +1,9 @@
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.PHONY: clean All
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All:
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@echo "----------Building project:[ RTOSDemo - BuildSet ]----------"
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@
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@make -f "RTOSDemo.mk" MakeIntermediateDirs && make -f "RTOSDemo.mk" -j 8
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clean:
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@echo "----------Cleaning project:[ RTOSDemo - BuildSet ]----------"
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@make -f "RTOSDemo.mk" clean
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@ -0,0 +1,381 @@
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|
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<VirtualDirectory Name="port">
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<Init>yes</Init>
|
||||
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|
||||
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|
||||
<InUse>no</InUse>
|
||||
<Start>0x50000000</Start>
|
||||
<Size>0x800000</Size>
|
||||
<Init>yes</Init>
|
||||
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|
||||
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|
||||
<InUse>yes</InUse>
|
||||
<Start>0x60004000</Start>
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<Size/>
|
||||
<Init>yes</Init>
|
||||
</RAM5>
|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<Type>Executable</Type>
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
||||
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<Flash>
|
||||
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|
||||
<Erase>Erase Sectors</Erase>
|
||||
<Algorithms Path="">hobbit1_2_OTP_CDK.elf</Algorithms>
|
||||
<Program>no</Program>
|
||||
<Verify>no</Verify>
|
||||
<ResetAndRun>no</ResetAndRun>
|
||||
<ResetType>Soft Reset</ResetType>
|
||||
<SoftResetVal/>
|
||||
<External>no</External>
|
||||
<Command/>
|
||||
<Arguments/>
|
||||
</Flash>
|
||||
</BuildConfig>
|
||||
</BuildConfigs>
|
||||
</Project>
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<CDK_Workspace Name="RTOSDemo" Database="">
|
||||
<Project Name="RTOSDemo" Path="RTOSDemo.cdkproj" Active="Yes"/>
|
||||
<BuildMatrix>
|
||||
<WorkspaceConfiguration Name="Debug" Selected="yes">
|
||||
<Environment/>
|
||||
<Project Name="RTOSDemo" ConfigName="BuildSet"/>
|
||||
</WorkspaceConfiguration>
|
||||
</BuildMatrix>
|
||||
</CDK_Workspace>
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
/*============================================================================
|
||||
* Name : chip_name.c
|
||||
* Author : $(UserName)
|
||||
* Copyright : Your copyright notice
|
||||
* Description : System Initialization before main
|
||||
* 1 CPU initialization
|
||||
* 2 memory & IO base address initialization
|
||||
* 3 flash size & address initialization
|
||||
* 4 interrupt resource initialization for the soc
|
||||
*============================================================================
|
||||
*/
|
||||
#include "chip_name.h"
|
||||
/**
|
||||
* @brief initial CPU based on user config in chip_name.h
|
||||
*/
|
||||
static void CPUInit(void)
|
||||
{
|
||||
/**
|
||||
* Config CPU's Unit such as MGU, Cache...
|
||||
*/
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief entry of whole chip initialization
|
||||
* @Note anyone should not use any global variable in this function since this function is called
|
||||
* at before data section's initialization.
|
||||
* Since here SystemInit is a weak symbol, any vendor can override this symbol on its own wishes.
|
||||
*/
|
||||
|
||||
#define CONFIG_SYSTICK_HZ 100
|
||||
#define CONFIG_SYSTEM_FREQ 24000000
|
||||
|
||||
__attribute__((weak)) void SystemInit(void)
|
||||
{
|
||||
/**
|
||||
* initial CPU based on the config in chip_name.h
|
||||
*/
|
||||
CPUInit();
|
||||
|
||||
/**
|
||||
* TODO: initial IO, memory, flash...
|
||||
*/
|
||||
|
||||
drv_coret_config(CONFIG_SYSTEM_FREQ / CONFIG_SYSTICK_HZ, CORET_IRQn); //10ms
|
||||
csi_vic_enable_sirq(CORET_IRQn);
|
||||
|
||||
return;
|
||||
}
|
||||
|
|
@ -0,0 +1,45 @@
|
|||
/*
|
||||
* Description : chip_name.h - Define the system configuration such as:
|
||||
* 1 CPU base config
|
||||
* 2 memory & IO base address
|
||||
* 3 flash size & address
|
||||
* 4 interrupt resource for the soc.
|
||||
*
|
||||
* Copyright (C) : Hangzhou C-SKY Microsystems Co.,LTD.
|
||||
* Date: 2016-08-22
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_CHIP_NAME_H__
|
||||
#define __INCLUDE_CHIP_NAME_H__
|
||||
|
||||
typedef enum IRQn
|
||||
{
|
||||
/* ---------------------- CK801CM0 Specific Interrupt Numbers --------------------- */
|
||||
CORET_IRQn = 0,
|
||||
} IRQn_Type;
|
||||
|
||||
/* Configuration of the CK80# Processor and Core Peripherals */
|
||||
/* ToDo: set the defines according your Device */
|
||||
/* ToDo: define the correct core revision
|
||||
__CK801_REV if your device is a CK801 device
|
||||
__CK802_REV if your device is a CK802 device
|
||||
__CK803S_REV if your device is a CK803S device */
|
||||
#define __NVIC_PRIO_BITS 2 /*!< Number of Bits used for Priority Levels */
|
||||
#define __Vendor_SysTickConfig 0 /*!< Set to 1 if different SysTick Config is used */
|
||||
#define __MGU_PRESENT 0 /*!< MGU present or not */
|
||||
|
||||
/* Soft reset address */
|
||||
#define __RESET_CONST 0xabcd1234
|
||||
|
||||
/**********************************************
|
||||
* Config CPU
|
||||
* Define the attribute for your CPU
|
||||
*********************************************/
|
||||
//#include "CSICORE_CK802.H"
|
||||
|
||||
/*******************************
|
||||
* Config IO base address
|
||||
******************************/
|
||||
|
||||
|
||||
#endif /* __INCLUDE_CHIP_NAME_H__ */
|
||||
150
FreeRTOS/Demo/T-HEAD_CB2201_CDK/RTOSDemo_CDK/RTOSDemo/ckcpu.ld
Normal file
150
FreeRTOS/Demo/T-HEAD_CB2201_CDK/RTOSDemo_CDK/RTOSDemo/ckcpu.ld
Normal file
|
|
@ -0,0 +1,150 @@
|
|||
/*************************************************************
|
||||
// <<< Use Configuration Wizard in Context Menu >>>
|
||||
*************************************************************/
|
||||
|
||||
/*************************************************************
|
||||
// <m> Entry Point <2>
|
||||
// <i> config start function for this application
|
||||
*************************************************************/
|
||||
MEMORY
|
||||
{
|
||||
ROM : ORIGIN = 0x0 , LENGTH = 0x2000 /* ROM 8KB*/
|
||||
EFLASH : ORIGIN = 0x60000000 , LENGTH = 0x4000 /* E-FLASH 252KB*/
|
||||
SRAM : ORIGIN = 0x60004000 , LENGTH = 0xC000 /* on-chip SRAM 80KB*/
|
||||
}
|
||||
|
||||
__min_heap_size = 0x200;
|
||||
PROVIDE (__ram_end = 0x60014000);
|
||||
PROVIDE (__heap_end = __ram_end);
|
||||
|
||||
REGION_ALIAS("REGION_TEXT", EFLASH);
|
||||
REGION_ALIAS("REGION_RODATA", EFLASH);
|
||||
REGION_ALIAS("REGION_DATA", SRAM);
|
||||
REGION_ALIAS("REGION_BSS", SRAM);
|
||||
|
||||
ENTRY(Reset_Handler)
|
||||
SECTIONS
|
||||
{
|
||||
.text : {
|
||||
. = ALIGN(0x4) ;
|
||||
*startup.o(*.text)
|
||||
__stext = . ;
|
||||
*(.text)
|
||||
*(.text*)
|
||||
*(.text.*)
|
||||
*(.gnu.warning)
|
||||
*(.stub)
|
||||
*(.gnu.linkonce.t*)
|
||||
*(.glue_7t)
|
||||
*(.glue_7)
|
||||
*(.jcr)
|
||||
KEEP (*(.init))
|
||||
KEEP (*(.fini))
|
||||
. = ALIGN (4) ;
|
||||
PROVIDE(__ctbp = .);
|
||||
*(.call_table_data)
|
||||
*(.call_table_text)
|
||||
. = ALIGN(0x10) ;
|
||||
__etext = . ;
|
||||
} > REGION_TEXT
|
||||
.eh_frame_hdr : {
|
||||
*(.eh_frame_hdr)
|
||||
} > REGION_TEXT
|
||||
.eh_frame : ONLY_IF_RO {
|
||||
KEEP (*(.eh_frame))
|
||||
} > REGION_TEXT
|
||||
.gcc_except_table : ONLY_IF_RO {
|
||||
*(.gcc_except_table .gcc_except_table.*)
|
||||
} > REGION_TEXT
|
||||
.rodata : {
|
||||
. = ALIGN(0x4) ;
|
||||
__srodata = .;
|
||||
*(.rdata)
|
||||
*(.rdata*)
|
||||
*(.rdata1)
|
||||
*(.rdata.*)
|
||||
*(.rodata)
|
||||
*(.rodata1)
|
||||
*(.rodata*)
|
||||
*(.rodata.*)
|
||||
*(.rodata.str1.4)
|
||||
. = ALIGN(0x4) ;
|
||||
__ctor_start__ = .;
|
||||
KEEP (*(SORT(.ctors.*)))
|
||||
KEEP (*(.ctors))
|
||||
__ctor_end__ = .;
|
||||
KEEP (*(SORT(.dtors.*)))
|
||||
KEEP (*(.dtors))
|
||||
__dtor_end__ = .;
|
||||
. = ALIGN(0x4) ;
|
||||
__erodata = .;
|
||||
__rodata_end__ = .;
|
||||
} > REGION_RODATA
|
||||
.data : {
|
||||
. = ALIGN(0x4) ;
|
||||
__sdata = . ;
|
||||
__data_start__ = . ;
|
||||
data_start = . ;
|
||||
KEEP(*startup.o(.vectors))
|
||||
*(.got.plt)
|
||||
*(.got)
|
||||
*(.gnu.linkonce.r*)
|
||||
*(.data)
|
||||
*(.data*)
|
||||
*(.data1)
|
||||
*(.data.*)
|
||||
*(.gnu.linkonce.d*)
|
||||
*(.data1)
|
||||
*(.gcc_except_table)
|
||||
*(.gcc_except_table*)
|
||||
__start_init_call = .;
|
||||
*(.initcall.init)
|
||||
__stop_init_call = .;
|
||||
__start_cmd = .;
|
||||
*(.bootloaddata.cmd)
|
||||
. = ALIGN(4) ;
|
||||
__stop_cmd = .;
|
||||
*(.sdata)
|
||||
*(.sdata.*)
|
||||
*(.gnu.linkonce.s.*)
|
||||
*(__libc_atexit)
|
||||
*(__libc_subinit)
|
||||
*(__libc_subfreeres)
|
||||
*(.note.ABI-tag)
|
||||
__edata = .;
|
||||
__data_end__ = .;
|
||||
. = ALIGN(0x4) ;
|
||||
} > REGION_DATA AT > REGION_RODATA
|
||||
.eh_frame : ONLY_IF_RW {
|
||||
KEEP (*(.eh_frame))
|
||||
} > REGION_DATA AT > REGION_RODATA
|
||||
.gcc_except_table : ONLY_IF_RW {
|
||||
*(.gcc_except_table .gcc_except_table.*)
|
||||
__edata = .;
|
||||
__data_end__ = .;
|
||||
} > REGION_DATA AT > REGION_RODATA
|
||||
.bss : {
|
||||
. = ALIGN(0x4) ;
|
||||
__sbss = ALIGN(0x4) ;
|
||||
__bss_start__ = . ;
|
||||
*(.dynsbss)
|
||||
*(.sbss)
|
||||
*(.sbss.*)
|
||||
*(.scommon)
|
||||
*(.dynbss)
|
||||
*(.bss)
|
||||
*(.bss.*)
|
||||
*(COMMON)
|
||||
. = ALIGN(0x4) ;
|
||||
__ebss = . ;
|
||||
__bss_end__ = .;
|
||||
__end = . ;
|
||||
end = . ;
|
||||
} > REGION_BSS AT > REGION_BSS
|
||||
._user_heap : {
|
||||
. = ALIGN(0x4) ;
|
||||
__heap_start = .;
|
||||
. += __min_heap_size;
|
||||
. = ALIGN(0x4) ;
|
||||
} > REGION_BSS AT > REGION_BSS
|
||||
}
|
||||
195
FreeRTOS/Demo/T-HEAD_CB2201_CDK/RTOSDemo_CDK/RTOSDemo/crt0.S
Normal file
195
FreeRTOS/Demo/T-HEAD_CB2201_CDK/RTOSDemo_CDK/RTOSDemo/crt0.S
Normal file
|
|
@ -0,0 +1,195 @@
|
|||
/*
|
||||
* crt0.S
|
||||
* 1 define and initial the stack pointer
|
||||
* 2 exception handler table
|
||||
* 3 call SystemInit
|
||||
* 4 go to __main in entry.o
|
||||
*
|
||||
* Copyright (C) 2016~2017 Hangzhou C-SKY Microsystems Co., Ltd
|
||||
* Modify by Jiang Long on 2016-09-14
|
||||
*/
|
||||
// <<< Use Configuration Wizard in Context Menu >>>
|
||||
|
||||
/*
|
||||
* For importing variable or functions from other c or assemble files.
|
||||
*/
|
||||
.import main
|
||||
|
||||
/*
|
||||
* default service routine
|
||||
*/
|
||||
.global Reset_Handler
|
||||
.global Misaligned_Access_Handler
|
||||
.global Access_Error_Handler
|
||||
.global Divided_By_Zero_Handler
|
||||
.global Illegal_Handler
|
||||
.global Privlege_Violation_Handler
|
||||
.global Trace_Exection_Handler
|
||||
.global Breakpoint_Exception_Handler
|
||||
.global Unrecoverable_Error_Handler
|
||||
.global Idly4_Error_Handler
|
||||
.global Auto_INT_Handler
|
||||
.global Auto_FINT_Handler
|
||||
.global Reserved_HAI_Handler
|
||||
.global Reserved_FP_Handler
|
||||
.global TLB_Ins_Empty_Handler
|
||||
.global TLB_Data_Empty_Handler
|
||||
.global Default_handler
|
||||
|
||||
.weak Reset_Handler
|
||||
.weak Misaligned_Access_Handler
|
||||
.weak Access_Error_Handler
|
||||
.weak Divided_By_Zero_Handler
|
||||
.weak Illegal_Handler
|
||||
.weak Privlege_Violation_Handler
|
||||
.weak Trace_Exection_Handler
|
||||
.weak Breakpoint_Exception_Handler
|
||||
.weak Unrecoverable_Error_Handler
|
||||
.weak Idly4_Error_Handler
|
||||
.weak Auto_INT_Handler
|
||||
.weak Auto_FINT_Handler
|
||||
.weak Reserved_HAI_Handler
|
||||
.weak Reserved_FP_Handler
|
||||
.weak TLB_Ins_Empty_Handler
|
||||
.weak TLB_Data_Empty_Handler
|
||||
.weak Default_handler
|
||||
|
||||
|
||||
.export ckcpu_vsr_table /* Vector table base address. */
|
||||
.section .exp_table,"ax",@progbits
|
||||
/* Vector table space. */
|
||||
$d:
|
||||
.align 10
|
||||
ckcpu_vsr_table:
|
||||
.long Reset_Handler
|
||||
.long Misaligned_Access_Handler
|
||||
.long Access_Error_Handler
|
||||
.long Divided_By_Zero_Handler
|
||||
.long Illegal_Handler
|
||||
.long Privlege_Violation_Handler
|
||||
.long Trace_Exection_Handler
|
||||
.long Breakpoint_Exception_Handler
|
||||
.long Unrecoverable_Error_Handler
|
||||
.long Idly4_Error_Handler
|
||||
.long Auto_INT_Handler
|
||||
.long Auto_FINT_Handler
|
||||
.long Reserved_HAI_Handler
|
||||
.long Reserved_FP_Handler
|
||||
.long TLB_Ins_Empty_Handler
|
||||
.long TLB_Data_Empty_Handler
|
||||
|
||||
.rept 32
|
||||
.long NOVIC_IRQ_Default_Handler
|
||||
.endr
|
||||
$t:
|
||||
/* The ckcpu startup codes. */
|
||||
.text
|
||||
.align 2
|
||||
/*
|
||||
* This is the codes first entry point. This is where it all begins...
|
||||
*/
|
||||
Reset_Handler:
|
||||
/*
|
||||
* Init psr value, enable exception, disable interrupt and fast interrupt.
|
||||
* psr = 0x80000100
|
||||
*/
|
||||
bgeni r7, 31
|
||||
bseti r7, 30
|
||||
bseti r7, 29
|
||||
bseti r7, 8
|
||||
mtcr r7, psr
|
||||
|
||||
/*
|
||||
* Setup initial vector base table for interrupts and exceptions
|
||||
*/
|
||||
lrw a3, ckcpu_vsr_table
|
||||
mtcr a3, vbr
|
||||
|
||||
/* Initialize the normal stack pointer from the linker definition. */
|
||||
lrw r0, g_top_irqstack
|
||||
mov sp, r0
|
||||
|
||||
/*
|
||||
* The ranges of copy from/to are specified by following symbols
|
||||
* __etext: LMA of start of the section to copy from. Usually end of text
|
||||
* __data_start__: VMA of start of the section to copy to
|
||||
* __data_end__: VMA of end of the section to copy to
|
||||
*
|
||||
* All addresses must be aligned to 4 bytes boundary.
|
||||
*/
|
||||
lrw r1, __erodata
|
||||
lrw r2, __data_start__
|
||||
lrw r3, __data_end__
|
||||
|
||||
subu r3, r2
|
||||
cmpnei r3, 0
|
||||
bf .L_loop0_done
|
||||
|
||||
.L_loop0:
|
||||
ldw r0, (r1, 0)
|
||||
stw r0, (r2, 0)
|
||||
addi r1, 4
|
||||
addi r2, 4
|
||||
subi r3, 4
|
||||
cmpnei r3, 0
|
||||
bt .L_loop0
|
||||
|
||||
.L_loop0_done:
|
||||
|
||||
/*
|
||||
* The BSS section is specified by following symbols
|
||||
* __bss_start__: start of the BSS section.
|
||||
* __bss_end__: end of the BSS section.
|
||||
*
|
||||
* Both addresses must be aligned to 4 bytes boundary.
|
||||
*/
|
||||
lrw r1, __bss_start__
|
||||
lrw r2, __bss_end__
|
||||
|
||||
movi r0, 0
|
||||
|
||||
subu r2, r1
|
||||
cmpnei r2, 0
|
||||
bf .L_loop1_done
|
||||
|
||||
.L_loop1:
|
||||
stw r0, (r1, 0)
|
||||
addi r1, 4
|
||||
subi r2, 4
|
||||
cmpnei r2, 0
|
||||
bt .L_loop1
|
||||
.L_loop1_done:
|
||||
|
||||
jbsr main
|
||||
/* Should never get here. */
|
||||
1:
|
||||
br 1b
|
||||
Misaligned_Access_Handler:
|
||||
Access_Error_Handler:
|
||||
Divided_By_Zero_Handler:
|
||||
Illegal_Handler:
|
||||
Privlege_Violation_Handler:
|
||||
Trace_Exection_Handler:
|
||||
Breakpoint_Exception_Handler:
|
||||
Unrecoverable_Error_Handler:
|
||||
Idly4_Error_Handler:
|
||||
Auto_INT_Handler:
|
||||
Auto_FINT_Handler:
|
||||
Reserved_HAI_Handler:
|
||||
Reserved_FP_Handler:
|
||||
TLB_Ins_Empty_Handler:
|
||||
TLB_Data_Empty_Handler:
|
||||
Default_handler:
|
||||
br Default_handler
|
||||
rte
|
||||
|
||||
.section .bss
|
||||
|
||||
.align 2
|
||||
.global g_intstackalloc
|
||||
.global g_intstackbase
|
||||
.global g_top_irqstack
|
||||
g_intstackalloc:
|
||||
g_intstackbase:
|
||||
.space 4096
|
||||
g_top_irqstack:
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
set *0x4000202c=0xc0206
|
||||
set *0x40002004=0x8
|
||||
|
||||
set $pc=0x60000000
|
||||
set $psr=0xe0000000
|
||||
|
||||
123
FreeRTOS/Demo/T-HEAD_CB2201_CDK/RTOSDemo_CDK/RTOSDemo/main.c
Normal file
123
FreeRTOS/Demo/T-HEAD_CB2201_CDK/RTOSDemo_CDK/RTOSDemo/main.c
Normal file
|
|
@ -0,0 +1,123 @@
|
|||
/*============================================================================
|
||||
* Name : main.c
|
||||
* Author : $(username)
|
||||
* Version : 0.0.0
|
||||
* Copyright : Your copyright notice
|
||||
* Description : Simple function in C, Ansi-style
|
||||
*============================================================================
|
||||
*/
|
||||
|
||||
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "queue.h"
|
||||
|
||||
extern void SystemInit(void);
|
||||
|
||||
#define mainQUEUE_RECEIVE_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
|
||||
|
||||
#define mainQUEUE_SEND_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
|
||||
|
||||
#define mainQUEUE_SEND_FREQUENCY_MS ( 200 / portTICK_PERIOD_MS )
|
||||
|
||||
|
||||
/* The number of items the queue can hold. This is 1 as the receive task
|
||||
|
||||
will remove items as they are added, meaning the send task should always find
|
||||
|
||||
the queue empty. */
|
||||
|
||||
#define mainQUEUE_LENGTH ( 1 )
|
||||
|
||||
static QueueHandle_t xQueue = NULL;
|
||||
|
||||
static void prvQueueSendTask( void *pvParameters )
|
||||
{
|
||||
TickType_t xNextWakeTime;
|
||||
const unsigned long ulValueToSend = 100UL;
|
||||
|
||||
|
||||
/* Initialise xNextWakeTime - this only needs to be done once. */
|
||||
|
||||
xNextWakeTime = xTaskGetTickCount();
|
||||
|
||||
for( ;; )
|
||||
|
||||
{
|
||||
|
||||
/* Place this task in the blocked state until it is time to run again.
|
||||
|
||||
The block time is specified in ticks, the constant used converts ticks
|
||||
|
||||
to ms. While in the Blocked state this task will not consume any CPU
|
||||
|
||||
time. */
|
||||
|
||||
vTaskDelayUntil( &xNextWakeTime, mainQUEUE_SEND_FREQUENCY_MS );
|
||||
|
||||
|
||||
/* Send to the queue - causing the queue receive task to unblock and
|
||||
|
||||
toggle an LED. 0 is used as the block time so the sending operation
|
||||
|
||||
will not block - it shouldn't need to block as the queue should always
|
||||
|
||||
be empty at this point in the code. */
|
||||
|
||||
xQueueSend( xQueue, &ulValueToSend, 0 );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
static void prvQueueReceiveTask( void *pvParameters )
|
||||
{
|
||||
unsigned int ulReceivedValue;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
|
||||
/* Wait until something arrives in the queue - this task will block
|
||||
|
||||
indefinitely provided INCLUDE_vTaskSuspend is set to 1 in
|
||||
|
||||
FreeRTOSConfig.h. */
|
||||
|
||||
xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );
|
||||
|
||||
|
||||
|
||||
/* To get here something must have been received from the queue, but
|
||||
|
||||
is it the expected value? If it is, toggle the green LED. */
|
||||
|
||||
if( ulReceivedValue == 100UL )
|
||||
{
|
||||
printf("Recieve expected value : %d\n", ulReceivedValue);
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("Recieve unexpected value : %d\n", ulReceivedValue);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
SystemInit();
|
||||
|
||||
xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( unsigned long ) );
|
||||
if (xQueue != NULL)
|
||||
{
|
||||
xTaskCreate( prvQueueReceiveTask, "Rx", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_RECEIVE_TASK_PRIORITY, NULL );
|
||||
|
||||
xTaskCreate( prvQueueSendTask, "TX", configMINIMAL_STACK_SIZE, NULL, mainQUEUE_SEND_TASK_PRIORITY, NULL );
|
||||
|
||||
vTaskStartScheduler();
|
||||
}
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue