import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v1501120100901_softpack_1_9_v_1_0_svn_v15011

it's sad to see that atmel doesn't publish their svn repo or has
a centralized location or even puts proper version/release info
into the library itself

3 files changed, 167 insertions, 0 deletions

diff --git a/peripherals/systick/systick.c b/peripherals/systick/systick.c
new file mode 100644
index 0000000..c5d2d15
--- /dev/null
+++ b/peripherals/systick/systick.c
@@ -0,0 +1,63 @@
+/* ----------------------------------------------------------------------------

+ *         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.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+//         Headers

+//------------------------------------------------------------------------------

+

+#include "systick.h"

+

+//------------------------------------------------------------------------------

+/// Configures the SysTick in .

+/// \param countEnable  Enable SysTick counting.

+/// \param reloadValue  Value used for tick counter to reload.

+/// \param handler      Interrupt handler function, 0 to disable interrupt.

+//------------------------------------------------------------------------------

+void SysTick_Configure(unsigned char countEnable,

+                           unsigned int reloadValue,

+                           void( *handler )( void ))

+{

+    unsigned int intEnable = handler ? AT91C_NVIC_STICKINT : 0;

+

+    // Disable the SysTick & using core source

+    AT91C_BASE_NVIC->NVIC_STICKCSR = AT91C_NVIC_STICKCLKSOURCE;

+

+    // Reset the current value

+    AT91C_BASE_NVIC->NVIC_STICKCVR &= ~(unsigned int)AT91C_NVIC_STICKCURRENT;

+

+    // Setup the reload value

+    AT91C_BASE_NVIC->NVIC_STICKRVR = reloadValue;

+

+    // Enable the SysTick

+    AT91C_BASE_NVIC->NVIC_STICKCSR =  AT91C_NVIC_STICKCLKSOURCE

+                                    | AT91C_NVIC_STICKENABLE

+                                    | intEnable;

+

+}

+

diff --git a/peripherals/systick/systick.dir b/peripherals/systick/systick.dir
new file mode 100644
index 0000000..a6bf46f
--- /dev/null
+++ b/peripherals/systick/systick.dir
@@ -0,0 +1,36 @@
+/* ----------------------------------------------------------------------------

+ *         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.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+/// \dir

+///

+/// !!!Purpose

+///

+/// This directory contains an API for Configure the System Tick for Cortex-M3

+//------------------------------------------------------------------------------
\ No newline at end of file
diff --git a/peripherals/systick/systick.h b/peripherals/systick/systick.h
new file mode 100644
index 0000000..a3a0544
--- /dev/null
+++ b/peripherals/systick/systick.h
@@ -0,0 +1,68 @@
+/* ----------------------------------------------------------------------------

+ *         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

+/// 

+/// Methods and definitions for configuring System Tick in Cortex-M3.

+/// 

+/// !Usage

+///

+/// -# Configure the System Tick with SysTick_Configure

+///

+//------------------------------------------------------------------------------

+

+#ifndef SYSTICK_H

+#define SYSTICK_H

+

+//------------------------------------------------------------------------------

+//         Headers

+//------------------------------------------------------------------------------

+

+#include <board.h>

+#include <core_cm3.h>

+

+//------------------------------------------------------------------------------

+//         Definitions

+//------------------------------------------------------------------------------

+

+/// Vendor define it's own SysTickConfig function

+#define __Vendor_SysTickConfig     1

+

+//------------------------------------------------------------------------------

+//         Global functions

+//------------------------------------------------------------------------------

+

+extern void SysTick_Configure(unsigned char countEnable,

+                           unsigned int reloadValue,

+                           void( *handler )( void ));

+

+#endif //#ifndef SYSTICK_H