len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-08-18 09:08:33 -04:00
Code Issues Projects Releases Packages Wiki Activity

Add FreeRTOS-Plus directory.

Browse source
This commit is contained in:
Richard Barry 2012-08-11 21:34:11 +00:00
parent 7bd5f21ad5
commit f508a5f653
6798 changed files with 134949 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

74
FreeRTOS/Demo/Common/drivers/Atmel/at91lib/peripherals/pit/pit.h Normal file
View file

@ -0,0 +1,74 @@
/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \unit
/// !Purpose
///
/// Configuration and handling of PIT.
///
/// !Usage
///
/// -# Initialize System timer for a period in µsecond with
/// PIT_Init
/// -# Set the PIT Periodic Interval Value with PIT_SetPIV
/// -# Enable the PIT with PIT_Enable
/// -# Enable & disable PIT interrupts using PIT_EnableInt and
/// PIT_DisableInt
/// -# Read PIT mode register
/// PIT_GetMode
/// -# Read PIT status register
/// PIT_GetStatus
/// -# Read PIT CPIV and PICNT without ressetting the counters
/// PIT_GetPIIR
/// -# Read System timer CPIV and PICNT without ressetting the counters
/// PIT_GetPIVR
//------------------------------------------------------------------------------
#ifndef PIT_H
#define PIT_H
//------------------------------------------------------------------------------
// Headers
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern void PIT_Init(unsigned int period, unsigned int pit_frequency);
extern void PIT_SetPIV(unsigned int piv);
extern void PIT_Enable(void);
extern void PIT_EnableIT(void);
extern void PIT_DisableIT(void);
extern unsigned int PIT_GetMode(void);
extern unsigned int PIT_GetStatus(void);
extern unsigned int PIT_GetPIIR(void);
extern unsigned int PIT_GetPIVR(void);
#endif //#ifndef PIT_H