Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_common.c@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
<> 144:ef7eb2e8f9f7 3 * All rights reserved.
<> 144:ef7eb2e8f9f7 4 *
<> 144:ef7eb2e8f9f7 5 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 6 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 144:ef7eb2e8f9f7 9 * of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 144:ef7eb2e8f9f7 12 * list of conditions and the following disclaimer in the documentation and/or
<> 144:ef7eb2e8f9f7 13 * other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 *
<> 144:ef7eb2e8f9f7 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 144:ef7eb2e8f9f7 16 * contributors may be used to endorse or promote products derived from this
<> 144:ef7eb2e8f9f7 17 * software without specific prior written permission.
<> 144:ef7eb2e8f9f7 18 *
<> 144:ef7eb2e8f9f7 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 144:ef7eb2e8f9f7 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 144:ef7eb2e8f9f7 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 144:ef7eb2e8f9f7 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 144:ef7eb2e8f9f7 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 144:ef7eb2e8f9f7 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 144:ef7eb2e8f9f7 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 144:ef7eb2e8f9f7 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 144:ef7eb2e8f9f7 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 #include "fsl_common.h"
<> 144:ef7eb2e8f9f7 32 /* This is not needed for mbed */
<> 144:ef7eb2e8f9f7 33 #if 0
<> 144:ef7eb2e8f9f7 34 #include "fsl_debug_console.h"
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 #ifndef NDEBUG
<> 144:ef7eb2e8f9f7 37 #if (defined(__CC_ARM)) || (defined(__ICCARM__))
<> 144:ef7eb2e8f9f7 38 void __aeabi_assert(const char *failedExpr, const char *file, int line)
<> 144:ef7eb2e8f9f7 39 {
<> 144:ef7eb2e8f9f7 40 PRINTF("ASSERT ERROR \" %s \": file \"%s\" Line \"%d\" \n", failedExpr, file, line);
<> 144:ef7eb2e8f9f7 41 for (;;)
<> 144:ef7eb2e8f9f7 42 {
<> 144:ef7eb2e8f9f7 43 __asm("bkpt #0");
<> 144:ef7eb2e8f9f7 44 }
<> 144:ef7eb2e8f9f7 45 }
<> 144:ef7eb2e8f9f7 46 #elif(defined(__GNUC__))
<> 144:ef7eb2e8f9f7 47 void __assert_func(const char *file, int line, const char *func, const char *failedExpr)
<> 144:ef7eb2e8f9f7 48 {
<> 144:ef7eb2e8f9f7 49 PRINTF("ASSERT ERROR \" %s \": file \"%s\" Line \"%d\" function name \"%s\" \n", failedExpr, file, line, func);
<> 144:ef7eb2e8f9f7 50 for (;;)
<> 144:ef7eb2e8f9f7 51 {
<> 144:ef7eb2e8f9f7 52 __asm("bkpt #0");
<> 144:ef7eb2e8f9f7 53 }
<> 144:ef7eb2e8f9f7 54 }
<> 144:ef7eb2e8f9f7 55 #endif /* (defined(__CC_ARM)) || (defined (__ICCARM__)) */
<> 144:ef7eb2e8f9f7 56 #endif /* NDEBUG */
<> 144:ef7eb2e8f9f7 57 #endif
<> 144:ef7eb2e8f9f7 58 void InstallIRQHandler(IRQn_Type irq, uint32_t irqHandler)
<> 144:ef7eb2e8f9f7 59 {
<> 144:ef7eb2e8f9f7 60 /* Addresses for VECTOR_TABLE and VECTOR_RAM come from the linker file */
<> 144:ef7eb2e8f9f7 61 #if defined(__CC_ARM)
<> 144:ef7eb2e8f9f7 62 extern uint32_t Image$$VECTOR_ROM$$Base[];
<> 144:ef7eb2e8f9f7 63 extern uint32_t Image$$VECTOR_RAM$$Base[];
<> 144:ef7eb2e8f9f7 64 extern uint32_t Image$$RW_m_data$$Base[];
<> 144:ef7eb2e8f9f7 65
<> 144:ef7eb2e8f9f7 66 #define __VECTOR_TABLE Image$$VECTOR_ROM$$Base
<> 144:ef7eb2e8f9f7 67 #define __VECTOR_RAM Image$$VECTOR_RAM$$Base
<> 144:ef7eb2e8f9f7 68 #define __RAM_VECTOR_TABLE_SIZE (((uint32_t)Image$$RW_m_data$$Base - (uint32_t)Image$$VECTOR_RAM$$Base))
<> 144:ef7eb2e8f9f7 69 #elif defined(__ICCARM__)
<> 144:ef7eb2e8f9f7 70 extern uint32_t __RAM_VECTOR_TABLE_SIZE[];
<> 144:ef7eb2e8f9f7 71 extern uint32_t __VECTOR_TABLE[];
<> 144:ef7eb2e8f9f7 72 extern uint32_t __VECTOR_RAM[];
<> 144:ef7eb2e8f9f7 73 #elif defined(__GNUC__)
<> 144:ef7eb2e8f9f7 74 extern uint32_t __VECTOR_TABLE[];
<> 144:ef7eb2e8f9f7 75 extern uint32_t __VECTOR_RAM[];
<> 144:ef7eb2e8f9f7 76 extern uint32_t __RAM_VECTOR_TABLE_SIZE_BYTES[];
<> 144:ef7eb2e8f9f7 77 uint32_t __RAM_VECTOR_TABLE_SIZE = (uint32_t)(__RAM_VECTOR_TABLE_SIZE_BYTES);
<> 144:ef7eb2e8f9f7 78 #endif /* defined(__CC_ARM) */
<> 144:ef7eb2e8f9f7 79 uint32_t n;
<> 144:ef7eb2e8f9f7 80 uint32_t interrupts_disabled;
<> 144:ef7eb2e8f9f7 81
<> 144:ef7eb2e8f9f7 82 interrupts_disabled = __get_PRIMASK();
<> 144:ef7eb2e8f9f7 83 __disable_irq();
<> 144:ef7eb2e8f9f7 84 if (SCB->VTOR != (uint32_t)__VECTOR_RAM)
<> 144:ef7eb2e8f9f7 85 {
<> 144:ef7eb2e8f9f7 86 /* Copy the vector table from ROM to RAM */
<> 144:ef7eb2e8f9f7 87 for (n = 0; n < ((uint32_t)__RAM_VECTOR_TABLE_SIZE) / sizeof(uint32_t); n++)
<> 144:ef7eb2e8f9f7 88 {
<> 144:ef7eb2e8f9f7 89 __VECTOR_RAM[n] = __VECTOR_TABLE[n];
<> 144:ef7eb2e8f9f7 90 }
<> 144:ef7eb2e8f9f7 91 /* Point the VTOR to the position of vector table */
<> 144:ef7eb2e8f9f7 92 SCB->VTOR = (uint32_t)__VECTOR_RAM;
<> 144:ef7eb2e8f9f7 93 }
<> 144:ef7eb2e8f9f7 94
<> 144:ef7eb2e8f9f7 95 /* make sure the __VECTOR_RAM is noncachable */
<> 144:ef7eb2e8f9f7 96 __VECTOR_RAM[irq + 16] = irqHandler;
<> 144:ef7eb2e8f9f7 97
<> 144:ef7eb2e8f9f7 98 if (!interrupts_disabled) {
<> 144:ef7eb2e8f9f7 99 __enable_irq();
<> 144:ef7eb2e8f9f7 100 }
<> 144:ef7eb2e8f9f7 101 }