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Get CLI functioning in SAMD20 demo.

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This commit is contained in:
Richard Barry 2013-10-02 14:24:38 +00:00
parent 013a3ef944
commit 8ffa1b1736
6 changed files with 867 additions and 71 deletions
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FreeRTOS/Demo/CORTEX_M0+_Atmel_SAMD20_XPlained/RTOSDemo.atsuo
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FreeRTOS/Demo/CORTEX_M0+_Atmel_SAMD20_XPlained/RTOSDemo/RTOSDemo.cproj
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@ -405,7 +405,6 @@
<Value>../../../../../FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI</Value>
</ListValues>
</armgcc.compiler.directories.IncludePaths>
<armgcc.compiler.optimization.level>Optimize (-O1)</armgcc.compiler.optimization.level>
<armgcc.compiler.optimization.OtherFlags>-fdata-sections</armgcc.compiler.optimization.OtherFlags>
<armgcc.compiler.optimization.PrepareFunctionsForGarbageCollection>True</armgcc.compiler.optimization.PrepareFunctionsForGarbageCollection>
<armgcc.compiler.optimization.DebugLevel>Maximum (-g3)</armgcc.compiler.optimization.DebugLevel>
@ -499,6 +498,12 @@
<GenerateEepFile>True</GenerateEepFile>
</PropertyGroup>
<ItemGroup>
<Compile Include="src\Sample-CLI-commands.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="src\UARTCommandConsole.c">
<SubType>compile</SubType>
</Compile>
<None Include="src\ASF\common\services\serial\sam0_usart\usart_serial.h">
<SubType>compile</SubType>
</None>

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FreeRTOS/Demo/CORTEX_M0+_Atmel_SAMD20_XPlained/RTOSDemo/src/Sample-CLI-commands.c Normal file
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/*
FreeRTOS V7.5.2 - Copyright (C) 2013 Real Time Engineers Ltd.
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
>>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
distribute a combined work that includes FreeRTOS without being obliged to
provide the source code for proprietary components outside of the FreeRTOS
kernel.
FreeRTOS 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
and the FreeRTOS license exception along with FreeRTOS; if not itcan be
viewed here: http://www.freertos.org/a00114.html and also obtained by
writing to Real Time Engineers Ltd., contact details for whom are available
on the FreeRTOS WEB site.
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, and our new
fully thread aware and reentrant UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems, who sell the code with commercial support,
indemnification and middleware, under the OpenRTOS brand.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
*/
/******************************************************************************
*
* See the following URL for information on the commands defined in this file:
* http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/Ethernet_Related_CLI_Commands.shtml
*
******************************************************************************/
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
#include <string.h>
/* FreeRTOS+CLI includes. */
#include "FreeRTOS_CLI.h"
#ifndef configINCLUDE_TRACE_RELATED_CLI_COMMANDS
#define configINCLUDE_TRACE_RELATED_CLI_COMMANDS 0
#endif
/*
* Implements the run-time-stats command.
*/
static portBASE_TYPE prvTaskStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the task-stats command.
*/
static portBASE_TYPE prvRunTimeStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the echo-three-parameters command.
*/
static portBASE_TYPE prvThreeParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the echo-parameters command.
*/
static portBASE_TYPE prvParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
/*
* Implements the "trace start" and "trace stop" commands;
*/
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
static portBASE_TYPE prvStartStopTraceCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString );
#endif
/* Structure that defines the "run-time-stats" command line command. This
generates a table that shows how much run time each task has */
static const CLI_Command_Definition_t xRunTimeStats =
{
( const int8_t * const ) "run-time-stats", /* The command string to type. */
( const int8_t * const ) "\r\nrun-time-stats:\r\n Displays a table showing how much processing time each FreeRTOS task has used\r\n",
prvRunTimeStatsCommand, /* The function to run. */
0 /* No parameters are expected. */
};
/* Structure that defines the "task-stats" command line command. This generates
a table that gives information on each task in the system. */
static const CLI_Command_Definition_t xTaskStats =
{
( const int8_t * const ) "task-stats", /* The command string to type. */
( const int8_t * const ) "\r\ntask-stats:\r\n Displays a table showing the state of each FreeRTOS task\r\n",
prvTaskStatsCommand, /* The function to run. */
0 /* No parameters are expected. */
};
/* Structure that defines the "echo_3_parameters" command line command. This
takes exactly three parameters that the command simply echos back one at a
time. */
static const CLI_Command_Definition_t xThreeParameterEcho =
{
( const int8_t * const ) "echo-3-parameters",
( const int8_t * const ) "\r\necho-3-parameters <param1> <param2> <param3>:\r\n Expects three parameters, echos each in turn\r\n",
prvThreeParameterEchoCommand, /* The function to run. */
3 /* Three parameters are expected, which can take any value. */
};
/* Structure that defines the "echo_parameters" command line command. This
takes a variable number of parameters that the command simply echos back one at
a time. */
static const CLI_Command_Definition_t xParameterEcho =
{
( const int8_t * const ) "echo-parameters",
( const int8_t * const ) "\r\necho-parameters <...>:\r\n Take variable number of parameters, echos each in turn\r\n",
prvParameterEchoCommand, /* The function to run. */
-1 /* The user can enter any number of commands. */
};
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
/* Structure that defines the "trace" command line command. This takes a single
parameter, which can be either "start" or "stop". */
static const CLI_Command_Definition_t xStartStopTrace =
{
( const int8_t * const ) "trace",
( const int8_t * const ) "\r\ntrace [start | stop]:\r\n Starts or stops a trace recording for viewing in FreeRTOS+Trace\r\n",
prvStartStopTraceCommand, /* The function to run. */
1 /* One parameter is expected. Valid values are "start" and "stop". */
};
#endif /* configINCLUDE_TRACE_RELATED_CLI_COMMANDS */
/*-----------------------------------------------------------*/
void vRegisterSampleCLICommands( void )
{
/* Register all the command line commands defined immediately above. */
FreeRTOS_CLIRegisterCommand( &xTaskStats );
FreeRTOS_CLIRegisterCommand( &xRunTimeStats );
FreeRTOS_CLIRegisterCommand( &xThreeParameterEcho );
FreeRTOS_CLIRegisterCommand( &xParameterEcho );
#if( configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1 )
{
FreeRTOS_CLIRegisterCommand( & xStartStopTrace );
}
#endif
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvTaskStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
const int8_t *const pcHeader = ( int8_t * ) "Task State Priority Stack #\r\n************************************************\r\n";
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Generate a table of task stats. */
strcpy( ( char * ) pcWriteBuffer, ( char * ) pcHeader );
vTaskList( pcWriteBuffer + strlen( ( char * ) pcHeader ) );
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvRunTimeStatsCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
const int8_t * const pcHeader = ( int8_t * ) "Task Abs Time % Time\r\n****************************************\r\n";
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Generate a table of task stats. */
strcpy( ( char * ) pcWriteBuffer, ( char * ) pcHeader );
vTaskGetRunTimeStats( pcWriteBuffer + strlen( ( char * ) pcHeader ) );
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvThreeParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t *pcParameter;
portBASE_TYPE xParameterStringLength, xReturn;
static portBASE_TYPE lParameterNumber = 0;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
if( lParameterNumber == 0 )
{
/* The first time the function is called after the command has been
entered just a header string is returned. */
sprintf( ( char * ) pcWriteBuffer, "The three parameters were:\r\n" );
/* Next time the function is called the first parameter will be echoed
back. */
lParameterNumber = 1L;
/* There is more data to be returned as no parameters have been echoed
back yet. */
xReturn = pdPASS;
}
else
{
/* Obtain the parameter string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
lParameterNumber, /* Return the next parameter. */
&xParameterStringLength /* Store the parameter string length. */
);
/* Sanity check something was returned. */
configASSERT( pcParameter );
/* Return the parameter string. */
memset( pcWriteBuffer, 0x00, xWriteBufferLen );
sprintf( ( char * ) pcWriteBuffer, "%d: ", ( int ) lParameterNumber );
strncat( ( char * ) pcWriteBuffer, ( const char * ) pcParameter, xParameterStringLength );
strncat( ( char * ) pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
/* If this is the last of the three parameters then there are no more
strings to return after this one. */
if( lParameterNumber == 3L )
{
/* If this is the last of the three parameters then there are no more
strings to return after this one. */
xReturn = pdFALSE;
lParameterNumber = 0L;
}
else
{
/* There are more parameters to return after this one. */
xReturn = pdTRUE;
lParameterNumber++;
}
}
return xReturn;
}
/*-----------------------------------------------------------*/
static portBASE_TYPE prvParameterEchoCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t *pcParameter;
portBASE_TYPE xParameterStringLength, xReturn;
static portBASE_TYPE lParameterNumber = 0;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
if( lParameterNumber == 0 )
{
/* The first time the function is called after the command has been
entered just a header string is returned. */
sprintf( ( char * ) pcWriteBuffer, "The parameters were:\r\n" );
/* Next time the function is called the first parameter will be echoed
back. */
lParameterNumber = 1L;
/* There is more data to be returned as no parameters have been echoed
back yet. */
xReturn = pdPASS;
}
else
{
/* Obtain the parameter string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
lParameterNumber, /* Return the next parameter. */
&xParameterStringLength /* Store the parameter string length. */
);
if( pcParameter != NULL )
{
/* Return the parameter string. */
memset( pcWriteBuffer, 0x00, xWriteBufferLen );
sprintf( ( char * ) pcWriteBuffer, "%d: ", ( int ) lParameterNumber );
strncat( ( char * ) pcWriteBuffer, ( const char * ) pcParameter, xParameterStringLength );
strncat( ( char * ) pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
/* There might be more parameters to return after this one. */
xReturn = pdTRUE;
lParameterNumber++;
}
else
{
/* No more parameters were found. Make sure the write buffer does
not contain a valid string. */
pcWriteBuffer[ 0 ] = 0x00;
/* No more data to return. */
xReturn = pdFALSE;
/* Start over the next time this command is executed. */
lParameterNumber = 0;
}
}
return xReturn;
}
/*-----------------------------------------------------------*/
#if configINCLUDE_TRACE_RELATED_CLI_COMMANDS == 1
static portBASE_TYPE prvStartStopTraceCommand( int8_t *pcWriteBuffer, size_t xWriteBufferLen, const int8_t *pcCommandString )
{
int8_t *pcParameter;
portBASE_TYPE lParameterStringLength;
/* Remove compile time warnings about unused parameters, and check the
write buffer is not NULL. NOTE - for simplicity, this example assumes the
write buffer length is adequate, so does not check for buffer overflows. */
( void ) pcCommandString;
( void ) xWriteBufferLen;
configASSERT( pcWriteBuffer );
/* Obtain the parameter string. */
pcParameter = ( int8_t * ) FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
1, /* Return the first parameter. */
&lParameterStringLength /* Store the parameter string length. */
);
/* Sanity check something was returned. */
configASSERT( pcParameter );
/* There are only two valid parameter values. */
if( strncmp( ( const char * ) pcParameter, "start", strlen( "start" ) ) == 0 )
{
/* Start or restart the trace. */
vTraceStop();
vTraceClear();
vTraceStart();
sprintf( ( char * ) pcWriteBuffer, "Trace recording (re)started.\r\n" );
}
else if( strncmp( ( const char * ) pcParameter, "stop", strlen( "stop" ) ) == 0 )
{
/* End the trace, if one is running. */
vTraceStop();
sprintf( ( char * ) pcWriteBuffer, "Stopping trace recording.\r\n" );
}
else
{
sprintf( ( char * ) pcWriteBuffer, "Valid parameters are 'start' and 'stop'.\r\n" );
}
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
#endif /* configINCLUDE_TRACE_RELATED_CLI_COMMANDS */

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/*
FreeRTOS V7.5.2 - Copyright (C) 2013 Real Time Engineers Ltd.
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that has become a de facto standard. *
* *
* Help yourself get started quickly and support the FreeRTOS *
* project by purchasing a FreeRTOS tutorial book, reference *
* manual, or both from: http://www.FreeRTOS.org/Documentation *
* *
* Thank you! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
>>! NOTE: The modification to the GPL is included to allow you to distribute
>>! a combined work that includes FreeRTOS without being obliged to provide
>>! the source code for proprietary components outside of the FreeRTOS
>>! kernel.
FreeRTOS 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. Full license text is available from the following
link: http://www.freertos.org/a00114.html
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
/* Standard includes. */
#include "string.h"
#include "stdio.h"
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"
/* Library includes. */
#include "asf.h"
/* Example includes. */
#include "FreeRTOS_CLI.h"
#include "UARTCommandConsole.h"
/* Dimensions the buffer into which input characters are placed. */
#define cmdMAX_INPUT_SIZE 50
/* The maximum time in ticks to wait for the UART access mutex. */
#define cmdMAX_MUTEX_WAIT ( 200 / portTICK_RATE_MS )
/* Characters are only ever received slowly on the CLI so it is ok to pass
received characters from the UART interrupt to the task on a queue. This sets
the length of the queue used for that purpose. */
#define cmdRXED_CHARS_QUEUE_LENGTH ( 10 )
/* DEL acts as a backspace. */
#define cmdASCII_DEL ( 0x7F )
/*-----------------------------------------------------------*/
/*
* The task that implements the command console processing.
*/
static void prvUARTCommandConsoleTask( void *pvParameters );
/*
* Ensure a previous interrupt driven Tx has completed before sending the next
* data block to the UART.
*/
static void prvSendBuffer( struct usart_module *pxCDCUsart, uint8_t * pcBuffer, size_t xBufferLength );
/*
* A UART is used for printf() output and CLI input and output. Configure the
* UART and register prvUARTRxNotificationHandler() to handle UART Rx events.
*/
static void prvConfigureUART( struct usart_module *pxCDCUsart );
static void prvUARTTxNotificationHandler( const struct usart_module *const pxUSART );
static void prvUARTRxNotificationHandler( const struct usart_module *const pxUSART );
/*-----------------------------------------------------------*/
/* Const messages output by the command console. */
static uint8_t * const pcWelcomeMessage = ( uint8_t * ) "\r\n\r\nFreeRTOS command server.\r\nType Help to view a list of registered commands.\r\n\r\n>";
static const uint8_t * const pcEndOfOutputMessage = ( uint8_t * ) "\r\n[Press ENTER to execute the previous command again]\r\n>";
static const uint8_t * const pcNewLine = ( uint8_t * ) "\r\n";
/* This semaphore is used to allow the task to wait for a Tx to complete
without wasting any CPU time. */
static xSemaphoreHandle xTxCompleteSemaphore = NULL;
/* This semaphore is sued to allow the task to wait for an Rx to complete
without wasting any CPU time. */
static xSemaphoreHandle xRxCompleteSemaphore = NULL;
/*-----------------------------------------------------------*/
void vUARTCommandConsoleStart( uint16_t usStackSize, unsigned portBASE_TYPE uxPriority )
{
/* Create that task that handles the console itself. */
xTaskCreate( prvUARTCommandConsoleTask, /* The task that implements the command console. */
( const int8_t * const ) "CLI", /* Text name assigned to the task. This is just to assist debugging. The kernel does not use this name itself. */
usStackSize, /* The size of the stack allocated to the task. */
NULL, /* The parameter is not used, so NULL is passed. */
uxPriority, /* The priority allocated to the task. */
NULL ); /* A handle is not required, so just pass NULL. */
}
/*-----------------------------------------------------------*/
static void prvUARTCommandConsoleTask( void *pvParameters )
{
uint8_t ucRxedChar, ucInputIndex = 0, *pucOutputString;
static int8_t cInputString[ cmdMAX_INPUT_SIZE ], cLastInputString[ cmdMAX_INPUT_SIZE ];
portBASE_TYPE xReturned;
static struct usart_module xCDCUsart; /* Static so it doesn't take up too much stack. */
( void ) pvParameters;
/* A UART is used for printf() output and CLI input and output. Note there
is no mutual exclusion on the UART, but the demo as it stands does not
require mutual exclusion. */
prvConfigureUART( &xCDCUsart );
/* Obtain the address of the output buffer. Note there is no mutual
exclusion on this buffer as it is assumed only one command console
interface will be used at any one time. */
pucOutputString = ( uint8_t * ) FreeRTOS_CLIGetOutputBuffer();
/* Send the welcome message. */
prvSendBuffer( &xCDCUsart, pcWelcomeMessage, strlen( ( char * ) pcWelcomeMessage ) );
for( ;; )
{
/* Wait for the next character to arrive. A semaphore is used to
ensure no CPU time is used until data has arrived. */
usart_read_buffer_job( &xCDCUsart, &ucRxedChar, sizeof( ucRxedChar ) );
if( xSemaphoreTake( xRxCompleteSemaphore, portMAX_DELAY ) == pdPASS )
{
/* Echo the character back. */
prvSendBuffer( &xCDCUsart, ( uint8_t * ) &ucRxedChar, sizeof( ucRxedChar ) );
/* Was it the end of the line? */
if( ucRxedChar == '\n' || ucRxedChar == '\r' )
{
/* Just to space the output from the input. */
prvSendBuffer( &xCDCUsart, ( uint8_t * ) pcNewLine, strlen( ( char * ) pcNewLine ) );
/* See if the command is empty, indicating that the last command is
to be executed again. */
if( ucInputIndex == 0 )
{
/* Copy the last command back into the input string. */
strcpy( ( char * ) cInputString, ( char * ) cLastInputString );
}
/* Pass the received command to the command interpreter. The
command interpreter is called repeatedly until it returns pdFALSE
(indicating there is no more output) as it might generate more than
one string. */
do
{
/* Get the next output string from the command interpreter. */
xReturned = FreeRTOS_CLIProcessCommand( cInputString, ( int8_t * ) pucOutputString, configCOMMAND_INT_MAX_OUTPUT_SIZE );
/* Write the generated string to the UART. */
prvSendBuffer( &xCDCUsart, ( uint8_t * ) pucOutputString, strlen( ( char * ) pucOutputString ) );
} while( xReturned != pdFALSE );
/* All the strings generated by the input command have been sent.
Clear the input string ready to receive the next command. Remember
the command that was just processed first in case it is to be
processed again. */
strcpy( ( char * ) cLastInputString, ( char * ) cInputString );
ucInputIndex = 0;
memset( cInputString, 0x00, cmdMAX_INPUT_SIZE );
prvSendBuffer( &xCDCUsart, ( uint8_t * ) pcEndOfOutputMessage, strlen( ( char * ) pcEndOfOutputMessage ) );
}
else
{
if( ucRxedChar == '\r' )
{
/* Ignore the character. */
}
else if( ( ucRxedChar == '\b' ) || ( ucRxedChar == cmdASCII_DEL ) )
{
/* Backspace was pressed. Erase the last character in the
string - if any. */
if( ucInputIndex > 0 )
{
ucInputIndex--;
cInputString[ ucInputIndex ] = '\0';
}
}
else
{
/* A character was entered. Add it to the string
entered so far. When a \n is entered the complete
string will be passed to the command interpreter. */
if( ( ucRxedChar >= ' ' ) && ( ucRxedChar <= '~' ) )
{
if( ucInputIndex < cmdMAX_INPUT_SIZE )
{
cInputString[ ucInputIndex ] = ucRxedChar;
ucInputIndex++;
}
}
}
}
}
}
}
/*-----------------------------------------------------------*/
static void prvSendBuffer( struct usart_module *pxCDCUsart, uint8_t * pcBuffer, size_t xBufferLength )
{
const portTickType xBlockMax50ms = 50 / portTICK_RATE_MS;
if( xBufferLength > 0 )
{
usart_write_buffer_job( pxCDCUsart, pcBuffer, xBufferLength );
/* Wait for the Tx to complete so the buffer can be reused without
corrupting the data that is being sent. */
xSemaphoreTake( xTxCompleteSemaphore, xBlockMax50ms );
}
}
/*-----------------------------------------------------------*/
static void prvConfigureUART( struct usart_module *pxCDCUsart )
{
struct usart_config xUARTConfig;
/* This semaphore is used to allow the task to wait for the Tx to complete
without wasting any CPU time. */
vSemaphoreCreateBinary( xTxCompleteSemaphore );
configASSERT( xTxCompleteSemaphore );
/* This semaphore is used to allow the task to block for an Rx to complete
without wasting any CPU time. */
vSemaphoreCreateBinary( xRxCompleteSemaphore );
configASSERT( xRxCompleteSemaphore );
/* Take the semaphores so they start in the wanted state. A block time is
not necessary, and is therefore set to 0, as it is known that the semaphore s
exists - they have just been created. */
xSemaphoreTake( xTxCompleteSemaphore, 0 );
xSemaphoreTake( xRxCompleteSemaphore, 0 );
/* Configure the hardware. */
usart_get_config_defaults( &xUARTConfig );
xUARTConfig.baudrate = 115200;
xUARTConfig.mux_setting = EDBG_CDC_SERCOM_MUX_SETTING;
xUARTConfig.pinmux_pad0 = EDBG_CDC_SERCOM_PINMUX_PAD0;
xUARTConfig.pinmux_pad1 = EDBG_CDC_SERCOM_PINMUX_PAD1;
xUARTConfig.pinmux_pad2 = EDBG_CDC_SERCOM_PINMUX_PAD2;
xUARTConfig.pinmux_pad3 = EDBG_CDC_SERCOM_PINMUX_PAD3;
while( usart_init( pxCDCUsart, EDBG_CDC_MODULE, &xUARTConfig ) != STATUS_OK )
{
/* Nothing to do here. Should include a timeout really but this is
init code only. */
}
usart_enable( pxCDCUsart );
/* Register the driver callbacks. */
usart_register_callback( pxCDCUsart, prvUARTTxNotificationHandler, USART_CALLBACK_BUFFER_TRANSMITTED );
usart_register_callback( pxCDCUsart, prvUARTRxNotificationHandler, USART_CALLBACK_BUFFER_RECEIVED );
usart_enable_callback( pxCDCUsart, USART_CALLBACK_BUFFER_TRANSMITTED );
usart_enable_callback( pxCDCUsart, USART_CALLBACK_BUFFER_RECEIVED );
}
/*-----------------------------------------------------------*/
static void prvUARTRxNotificationHandler( const struct usart_module *const pxUSART )
{
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
/* Remove compiler warnings. */
( void ) pxUSART;
/* Give the semaphore to unblock any tasks that might be waiting for an Rx
to complete. If a task is unblocked, and the unblocked task has a priority
above the currently running task, then xHigherPriorityTaskWoken will be set
to pdTRUE inside the xSemaphoreGiveFromISR() function. */
xSemaphoreGiveFromISR( xRxCompleteSemaphore, &xHigherPriorityTaskWoken );
/* portEND_SWITCHING_ISR() or portYIELD_FROM_ISR() can be used here. */
portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
}
/*-----------------------------------------------------------*/
static void prvUARTTxNotificationHandler( const struct usart_module *const pxUSART )
{
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
/* Remove compiler warnings. */
( void ) pxUSART;
/* Give the semaphore to unblock any tasks that might be waiting for a Tx
to complete. If a task is unblocked, and the unblocked task has a priority
above the currently running task, then xHigherPriorityTaskWoken will be set
to pdTRUE inside the xSemaphoreGiveFromISR() function. */
xSemaphoreGiveFromISR( xTxCompleteSemaphore, &xHigherPriorityTaskWoken );
/* portEND_SWITCHING_ISR() or portYIELD_FROM_ISR() can be used here. */
portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
}

77
FreeRTOS/Demo/CORTEX_M0+_Atmel_SAMD20_XPlained/RTOSDemo/src/UARTCommandConsole.h Normal file
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@ -0,0 +1,77 @@
/*
FreeRTOS V7.5.2 - Copyright (C) 2013 Real Time Engineers Ltd.
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that has become a de facto standard. *
* *
* Help yourself get started quickly and support the FreeRTOS *
* project by purchasing a FreeRTOS tutorial book, reference *
* manual, or both from: http://www.FreeRTOS.org/Documentation *
* *
* Thank you! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
>>! NOTE: The modification to the GPL is included to allow you to distribute
>>! a combined work that includes FreeRTOS without being obliged to provide
>>! the source code for proprietary components outside of the FreeRTOS
>>! kernel.
FreeRTOS 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. Full license text is available from the following
link: http://www.freertos.org/a00114.html
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
#ifndef UART_COMMAND_CONSOLE_H
#define UART_COMMAND_CONSOLE_H
/*
* Create the task that implements a command console using the USB virtual com
* port driver for intput and output.
*/
void vUARTCommandConsoleStart( uint16_t usStackSize, unsigned portBASE_TYPE uxPriority );
#endif /* UART_COMMAND_CONSOLE_H */

83
FreeRTOS/Demo/CORTEX_M0+_Atmel_SAMD20_XPlained/RTOSDemo/src/main.c
View File

@ -66,89 +66,32 @@
#include "FreeRTOS.h"
#include "task.h"
/* Demo app includes. */
#include "UARTCommandConsole.h"
/* Library includes. */
#include <asf.h>
void usart_read_callback(const struct usart_module *const usart_module);
void usart_write_callback(const struct usart_module *const usart_module);
static void prvSetupHardware( void );
void configure_usart(void);
void configure_usart_callbacks(void);
void vApplicationMallocFailedHook( void );
void vApplicationIdleHook( void );
void vApplicationStackOverflowHook( xTaskHandle pxTask, signed char *pcTaskName );
void vApplicationTickHook( void );
struct usart_module usart_instance;
#define MAX_RX_BUFFER_LENGTH 5
volatile uint8_t rx_buffer[MAX_RX_BUFFER_LENGTH];
#define NUM 1024
char cChars[ NUM ] = { 0 };
void usart_read_callback(const struct usart_module *const usart_module)
{
usart_write_buffer_job(&usart_instance, (uint8_t *)rx_buffer, MAX_RX_BUFFER_LENGTH);
}
void usart_write_callback(const struct usart_module *const usart_module)
{
port_pin_toggle_output_level(LED_0_PIN);
}
void configure_usart(void)
{
struct usart_config config_usart;
usart_get_config_defaults(&config_usart);
config_usart.baudrate = 115200;
config_usart.mux_setting = EDBG_CDC_SERCOM_MUX_SETTING;
config_usart.pinmux_pad0 = EDBG_CDC_SERCOM_PINMUX_PAD0;
config_usart.pinmux_pad1 = EDBG_CDC_SERCOM_PINMUX_PAD1;
config_usart.pinmux_pad2 = EDBG_CDC_SERCOM_PINMUX_PAD2;
config_usart.pinmux_pad3 = EDBG_CDC_SERCOM_PINMUX_PAD3;
while (usart_init(&usart_instance,
EDBG_CDC_MODULE, &config_usart) != STATUS_OK) {
}
usart_enable(&usart_instance);
}
void configure_usart_callbacks(void)
{
usart_register_callback(&usart_instance,
usart_write_callback, USART_CALLBACK_BUFFER_TRANSMITTED);
usart_register_callback(&usart_instance,
usart_read_callback, USART_CALLBACK_BUFFER_RECEIVED);
usart_enable_callback(&usart_instance, USART_CALLBACK_BUFFER_TRANSMITTED);
usart_enable_callback(&usart_instance, USART_CALLBACK_BUFFER_RECEIVED);
}
int main (void)
{
prvSetupHardware();
vUARTCommandConsoleStart( ( configMINIMAL_STACK_SIZE * 3 ), tskIDLE_PRIORITY );
/* Start the scheduler. */
vTaskStartScheduler();
configure_usart();
configure_usart_callbacks();
system_interrupt_enable_global();
uint8_t string[] = "Hello World!\r\n";
usart_write_buffer_job(&usart_instance, string, sizeof(string));
while (true) {
usart_read_buffer_job(&usart_instance,
(uint8_t *)rx_buffer, MAX_RX_BUFFER_LENGTH);
}
while (1) {
if (port_pin_get_input_level(BUTTON_0_PIN) == BUTTON_0_ACTIVE) {
port_pin_set_output_level(LED_0_PIN, LED_0_ACTIVE);
} else {
port_pin_set_output_level(LED_0_PIN, !LED_0_ACTIVE);
}
}
/* If all is well, the scheduler will now be running, and the following line
will never be reached. If the following line does execute, then there was
insufficient FreeRTOS heap memory available for the idle and/or timer tasks
to be created. See the memory management section on the FreeRTOS web site
for more details. */
for( ;; );
}
/*-----------------------------------------------------------*/