Razvalyaev
3fb3058a30
- максимально убрана зависимость от HAL - можно использовать и без него, чисто на cmsis - документирован uart - документирован spi - добавлены примеры использования в general_periph - всякие фиксы документации
394 lines
11 KiB
C
394 lines
11 KiB
C
/*********************************************************************
|
|
* SEGGER Microcontroller GmbH *
|
|
* The Embedded Experts *
|
|
**********************************************************************
|
|
* *
|
|
* (c) 1995 - 2021 SEGGER Microcontroller GmbH *
|
|
* *
|
|
* www.segger.com Support: support@segger.com *
|
|
* *
|
|
**********************************************************************
|
|
* *
|
|
* SEGGER RTT * Real Time Transfer for embedded targets *
|
|
* *
|
|
**********************************************************************
|
|
* *
|
|
* All rights reserved. *
|
|
* *
|
|
* SEGGER strongly recommends to not make any changes *
|
|
* to or modify the source code of this software in order to stay *
|
|
* compatible with the RTT protocol and J-Link. *
|
|
* *
|
|
* Redistribution and use in source and binary forms, with or *
|
|
* without modification, are permitted provided that the following *
|
|
* condition is met: *
|
|
* *
|
|
* o Redistributions of source code must retain the above copyright *
|
|
* notice, this condition and the following disclaimer. *
|
|
* *
|
|
* 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 SEGGER Microcontroller 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. *
|
|
* *
|
|
**********************************************************************
|
|
* *
|
|
* RTT version: 7.54 *
|
|
* *
|
|
**********************************************************************
|
|
|
|
---------------------------END-OF-HEADER------------------------------
|
|
File : RTT_Syscalls_KEIL.c
|
|
Purpose : Retargeting module for KEIL MDK-CM3.
|
|
Low-level functions for using printf() via RTT
|
|
Revision: $Rev: 24316 $
|
|
Notes : (1) https://wiki.segger.com/Keil_MDK-ARM#RTT_in_uVision
|
|
----------------------------------------------------------------------
|
|
*/
|
|
#if (defined __CC_ARM) || (defined __ARMCC_VERSION)
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <rt_sys.h>
|
|
#include <rt_misc.h>
|
|
|
|
#include "SEGGER_RTT.h"
|
|
/*********************************************************************
|
|
*
|
|
* #pragmas
|
|
*
|
|
**********************************************************************
|
|
*/
|
|
#if __ARMCC_VERSION < 6000000
|
|
#pragma import(__use_no_semihosting)
|
|
#endif
|
|
|
|
#ifdef _MICROLIB
|
|
#pragma import(__use_full_stdio)
|
|
#endif
|
|
|
|
/*********************************************************************
|
|
*
|
|
* Defines non-configurable
|
|
*
|
|
**********************************************************************
|
|
*/
|
|
|
|
/* Standard IO device handles - arbitrary, but any real file system handles must be
|
|
less than 0x8000. */
|
|
#define STDIN 0x8001 // Standard Input Stream
|
|
#define STDOUT 0x8002 // Standard Output Stream
|
|
#define STDERR 0x8003 // Standard Error Stream
|
|
|
|
/*********************************************************************
|
|
*
|
|
* Public const
|
|
*
|
|
**********************************************************************
|
|
*/
|
|
#if __ARMCC_VERSION < 5000000
|
|
//const char __stdin_name[] = "STDIN";
|
|
const char __stdout_name[] = "STDOUT";
|
|
const char __stderr_name[] = "STDERR";
|
|
#endif
|
|
|
|
/*********************************************************************
|
|
*
|
|
* Public code
|
|
*
|
|
**********************************************************************
|
|
*/
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _ttywrch
|
|
*
|
|
* Function description:
|
|
* Outputs a character to the console
|
|
*
|
|
* Parameters:
|
|
* c - character to output
|
|
*
|
|
*/
|
|
void _ttywrch(int c) {
|
|
fputc(c, stdout); // stdout
|
|
fflush(stdout);
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_open
|
|
*
|
|
* Function description:
|
|
* Opens the device/file in order to do read/write operations
|
|
*
|
|
* Parameters:
|
|
* sName - sName of the device/file to open
|
|
* OpenMode - This parameter is currently ignored
|
|
*
|
|
* Return value:
|
|
* != 0 - Handle to the object to open, otherwise
|
|
* == 0 -"device" is not handled by this module
|
|
*
|
|
*/
|
|
FILEHANDLE _sys_open(const char * sName, int OpenMode) {
|
|
(void)OpenMode;
|
|
// Register standard Input Output devices.
|
|
if (strcmp(sName, __stdout_name) == 0) {
|
|
return (STDOUT);
|
|
} else if (strcmp(sName, __stderr_name) == 0) {
|
|
return (STDERR);
|
|
} else
|
|
return (0); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_close
|
|
*
|
|
* Function description:
|
|
* Closes the handle to the open device/file
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
*
|
|
* Return value:
|
|
* 0 - device/file closed
|
|
*
|
|
*/
|
|
int _sys_close(FILEHANDLE hFile) {
|
|
(void)hFile;
|
|
return 0; // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_write
|
|
*
|
|
* Function description:
|
|
* Writes the data to an open handle.
|
|
* Currently this function only outputs data to the console
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
* pBuffer - Pointer to the data that shall be written
|
|
* NumBytes - Number of bytes to write
|
|
* Mode - The Mode that shall be used
|
|
*
|
|
* Return value:
|
|
* Number of bytes *not* written to the file/device
|
|
*
|
|
*/
|
|
int _sys_write(FILEHANDLE hFile, const unsigned char * pBuffer, unsigned NumBytes, int Mode) {
|
|
int r = 0;
|
|
|
|
(void)Mode;
|
|
if (hFile == STDOUT) {
|
|
SEGGER_RTT_Write(0, (const char*)pBuffer, NumBytes);
|
|
return 0;
|
|
}
|
|
return r;
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_read
|
|
*
|
|
* Function description:
|
|
* Reads data from an open handle.
|
|
* Currently this modules does nothing.
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
* pBuffer - Pointer to buffer to store the read data
|
|
* NumBytes - Number of bytes to read
|
|
* Mode - The Mode that shall be used
|
|
*
|
|
* Return value:
|
|
* Number of bytes read from the file/device
|
|
*
|
|
*/
|
|
int _sys_read(FILEHANDLE hFile, unsigned char * pBuffer, unsigned NumBytes, int Mode) {
|
|
(void)hFile;
|
|
(void)pBuffer;
|
|
(void)NumBytes;
|
|
(void)Mode;
|
|
return (0); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_istty
|
|
*
|
|
* Function description:
|
|
* This function shall return whether the opened file
|
|
* is a console device or not.
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
*
|
|
* Return value:
|
|
* 1 - Device is a console
|
|
* 0 - Device is not a console
|
|
*
|
|
*/
|
|
int _sys_istty(FILEHANDLE hFile) {
|
|
if (hFile > 0x8000) {
|
|
return (1);
|
|
}
|
|
return (0); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_seek
|
|
*
|
|
* Function description:
|
|
* Seeks via the file to a specific position
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
* Pos -
|
|
*
|
|
* Return value:
|
|
* int -
|
|
*
|
|
*/
|
|
int _sys_seek(FILEHANDLE hFile, long Pos) {
|
|
(void)hFile;
|
|
(void)Pos;
|
|
return (0); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_ensure
|
|
*
|
|
* Function description:
|
|
*
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
*
|
|
* Return value:
|
|
* int -
|
|
*
|
|
*/
|
|
int _sys_ensure(FILEHANDLE hFile) {
|
|
(void)hFile;
|
|
return (-1); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_flen
|
|
*
|
|
* Function description:
|
|
* Returns the length of the opened file handle
|
|
*
|
|
* Parameters:
|
|
* hFile - Handle to a file opened via _sys_open
|
|
*
|
|
* Return value:
|
|
* Length of the file
|
|
*
|
|
*/
|
|
long _sys_flen(FILEHANDLE hFile) {
|
|
(void)hFile;
|
|
return (0); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_tmpnam
|
|
*
|
|
* Function description:
|
|
* This function converts the file number fileno for a temporary
|
|
* file to a unique filename, for example, tmp0001.
|
|
*
|
|
* Parameters:
|
|
* pBuffer - Pointer to a buffer to store the name
|
|
* FileNum - file number to convert
|
|
* MaxLen - Size of the buffer
|
|
*
|
|
* Return value:
|
|
* 1 - Error
|
|
* 0 - Success
|
|
*
|
|
*/
|
|
int _sys_tmpnam2(char * pBuffer, int FileNum, unsigned MaxLen) {
|
|
(void)pBuffer;
|
|
(void)FileNum;
|
|
(void)MaxLen;
|
|
return (1); // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_command_string
|
|
*
|
|
* Function description:
|
|
* This function shall execute a system command.
|
|
*
|
|
* Parameters:
|
|
* cmd - Pointer to the command string
|
|
* len - Length of the string
|
|
*
|
|
* Return value:
|
|
* == NULL - Command was not successfully executed
|
|
* == sCmd - Command was passed successfully
|
|
*
|
|
*/
|
|
char * _sys_command_string(char * cmd, int len) {
|
|
(void)len;
|
|
return cmd; // Not implemented
|
|
}
|
|
|
|
/*********************************************************************
|
|
*
|
|
* _sys_exit
|
|
*
|
|
* Function description:
|
|
* This function is called when the application returns from main
|
|
*
|
|
* Parameters:
|
|
* ReturnCode - Return code from the main function
|
|
*
|
|
*
|
|
*/
|
|
void _sys_exit(int ReturnCode) {
|
|
(void)ReturnCode;
|
|
while (1); // Not implemented
|
|
}
|
|
|
|
#if __ARMCC_VERSION >= 5000000
|
|
/*********************************************************************
|
|
*
|
|
* stdout_putchar
|
|
*
|
|
* Function description:
|
|
* Put a character to the stdout
|
|
*
|
|
* Parameters:
|
|
* ch - Character to output
|
|
*
|
|
*
|
|
*/
|
|
int stdout_putchar(int ch) {
|
|
(void)ch;
|
|
return ch; // Not implemented
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
/*************************** End of file ****************************/ |