Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

api/semihost_api.h@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 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #ifndef MBED_SEMIHOST_H
<> 144:ef7eb2e8f9f7 17 #define MBED_SEMIHOST_H
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include "device.h"
<> 144:ef7eb2e8f9f7 20 #include "toolchain.h"
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 23 extern "C" {
<> 144:ef7eb2e8f9f7 24 #endif
<> 144:ef7eb2e8f9f7 25
<> 144:ef7eb2e8f9f7 26 #if DEVICE_SEMIHOST
<> 144:ef7eb2e8f9f7 27
<> 144:ef7eb2e8f9f7 28 #ifndef __CC_ARM
<> 144:ef7eb2e8f9f7 29
<> 144:ef7eb2e8f9f7 30 #if defined(__ICCARM__)
<> 144:ef7eb2e8f9f7 31 static inline int __semihost(int reason, const void *arg) {
<> 144:ef7eb2e8f9f7 32 return __semihosting(reason, (void*)arg);
<> 144:ef7eb2e8f9f7 33 }
<> 144:ef7eb2e8f9f7 34 #else
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 #ifdef __thumb__
<> 144:ef7eb2e8f9f7 37 # define AngelSWI 0xAB
<> 144:ef7eb2e8f9f7 38 # define AngelSWIInsn "bkpt"
<> 144:ef7eb2e8f9f7 39 # define AngelSWIAsm bkpt
<> 144:ef7eb2e8f9f7 40 #else
<> 144:ef7eb2e8f9f7 41 # define AngelSWI 0x123456
<> 144:ef7eb2e8f9f7 42 # define AngelSWIInsn "swi"
<> 144:ef7eb2e8f9f7 43 # define AngelSWIAsm swi
<> 144:ef7eb2e8f9f7 44 #endif
<> 144:ef7eb2e8f9f7 45
<> 144:ef7eb2e8f9f7 46 static inline int __semihost(int reason, const void *arg) {
<> 144:ef7eb2e8f9f7 47 int value;
<> 144:ef7eb2e8f9f7 48
<> 144:ef7eb2e8f9f7 49 asm volatile (
<> 144:ef7eb2e8f9f7 50 "mov r0, %1" "\n\t"
<> 144:ef7eb2e8f9f7 51 "mov r1, %2" "\n\t"
<> 144:ef7eb2e8f9f7 52 AngelSWIInsn " %a3" "\n\t"
<> 144:ef7eb2e8f9f7 53 "mov %0, r0"
<> 144:ef7eb2e8f9f7 54 : "=r" (value) /* output operands */
<> 144:ef7eb2e8f9f7 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
<> 144:ef7eb2e8f9f7 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
<> 144:ef7eb2e8f9f7 57 );
<> 144:ef7eb2e8f9f7 58
<> 144:ef7eb2e8f9f7 59 return value;
<> 144:ef7eb2e8f9f7 60 }
<> 144:ef7eb2e8f9f7 61 #endif
<> 144:ef7eb2e8f9f7 62 #endif
<> 144:ef7eb2e8f9f7 63
<> 144:ef7eb2e8f9f7 64 #if DEVICE_LOCALFILESYSTEM
<> 144:ef7eb2e8f9f7 65 FILEHANDLE semihost_open(const char* name, int openmode);
<> 144:ef7eb2e8f9f7 66 int semihost_close (FILEHANDLE fh);
<> 144:ef7eb2e8f9f7 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
<> 144:ef7eb2e8f9f7 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
<> 144:ef7eb2e8f9f7 69 int semihost_ensure(FILEHANDLE fh);
<> 144:ef7eb2e8f9f7 70 long semihost_flen (FILEHANDLE fh);
<> 144:ef7eb2e8f9f7 71 int semihost_seek (FILEHANDLE fh, long position);
<> 144:ef7eb2e8f9f7 72 int semihost_istty (FILEHANDLE fh);
<> 144:ef7eb2e8f9f7 73
<> 144:ef7eb2e8f9f7 74 int semihost_remove(const char *name);
<> 144:ef7eb2e8f9f7 75 int semihost_rename(const char *old_name, const char *new_name);
<> 144:ef7eb2e8f9f7 76 #endif
<> 144:ef7eb2e8f9f7 77
<> 144:ef7eb2e8f9f7 78 int semihost_uid(char *uid);
<> 144:ef7eb2e8f9f7 79 int semihost_reset(void);
<> 144:ef7eb2e8f9f7 80 int semihost_vbus(void);
<> 144:ef7eb2e8f9f7 81 int semihost_powerdown(void);
<> 144:ef7eb2e8f9f7 82 int semihost_exit(void);
<> 144:ef7eb2e8f9f7 83
<> 144:ef7eb2e8f9f7 84 int semihost_connected(void);
<> 144:ef7eb2e8f9f7 85 int semihost_disabledebug(void);
<> 144:ef7eb2e8f9f7 86
<> 144:ef7eb2e8f9f7 87 #endif
<> 144:ef7eb2e8f9f7 88
<> 144:ef7eb2e8f9f7 89 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 90 }
<> 144:ef7eb2e8f9f7 91 #endif
<> 144:ef7eb2e8f9f7 92
<> 144:ef7eb2e8f9f7 93 #endif