Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

api/RawSerial.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_RAW_SERIAL_H
<> 144:ef7eb2e8f9f7 17 #define MBED_RAW_SERIAL_H
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include "platform.h"
<> 144:ef7eb2e8f9f7 20
<> 144:ef7eb2e8f9f7 21 #if DEVICE_SERIAL
<> 144:ef7eb2e8f9f7 22
<> 144:ef7eb2e8f9f7 23 #include "SerialBase.h"
<> 144:ef7eb2e8f9f7 24 #include "serial_api.h"
<> 144:ef7eb2e8f9f7 25
<> 144:ef7eb2e8f9f7 26 namespace mbed {
<> 144:ef7eb2e8f9f7 27
<> 144:ef7eb2e8f9f7 28 /** A serial port (UART) for communication with other serial devices
<> 144:ef7eb2e8f9f7 29 * This is a variation of the Serial class that doesn't use streams,
<> 144:ef7eb2e8f9f7 30 * thus making it safe to use in interrupt handlers with the RTOS.
<> 144:ef7eb2e8f9f7 31 *
<> 144:ef7eb2e8f9f7 32 * Can be used for Full Duplex communication, or Simplex by specifying
<> 144:ef7eb2e8f9f7 33 * one pin as NC (Not Connected)
<> 144:ef7eb2e8f9f7 34 *
<> 144:ef7eb2e8f9f7 35 * @Note Synchronization level: Not protected
<> 144:ef7eb2e8f9f7 36 *
<> 144:ef7eb2e8f9f7 37 * Example:
<> 144:ef7eb2e8f9f7 38 * @code
<> 144:ef7eb2e8f9f7 39 * // Send a char to the PC
<> 144:ef7eb2e8f9f7 40 *
<> 144:ef7eb2e8f9f7 41 * #include "mbed.h"
<> 144:ef7eb2e8f9f7 42 *
<> 144:ef7eb2e8f9f7 43 * RawSerial pc(USBTX, USBRX);
<> 144:ef7eb2e8f9f7 44 *
<> 144:ef7eb2e8f9f7 45 * int main() {
<> 144:ef7eb2e8f9f7 46 * pc.putc('A');
<> 144:ef7eb2e8f9f7 47 * }
<> 144:ef7eb2e8f9f7 48 * @endcode
<> 144:ef7eb2e8f9f7 49 */
<> 144:ef7eb2e8f9f7 50 class RawSerial: public SerialBase {
<> 144:ef7eb2e8f9f7 51
<> 144:ef7eb2e8f9f7 52 public:
<> 144:ef7eb2e8f9f7 53 /** Create a RawSerial port, connected to the specified transmit and receive pins
<> 144:ef7eb2e8f9f7 54 *
<> 144:ef7eb2e8f9f7 55 * @param tx Transmit pin
<> 144:ef7eb2e8f9f7 56 * @param rx Receive pin
<> 144:ef7eb2e8f9f7 57 *
<> 144:ef7eb2e8f9f7 58 * @note
<> 144:ef7eb2e8f9f7 59 * Either tx or rx may be specified as NC if unused
<> 144:ef7eb2e8f9f7 60 */
<> 144:ef7eb2e8f9f7 61 RawSerial(PinName tx, PinName rx);
<> 144:ef7eb2e8f9f7 62
<> 144:ef7eb2e8f9f7 63 /** Write a char to the serial port
<> 144:ef7eb2e8f9f7 64 *
<> 144:ef7eb2e8f9f7 65 * @param c The char to write
<> 144:ef7eb2e8f9f7 66 *
<> 144:ef7eb2e8f9f7 67 * @returns The written char or -1 if an error occured
<> 144:ef7eb2e8f9f7 68 */
<> 144:ef7eb2e8f9f7 69 int putc(int c);
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71 /** Read a char from the serial port
<> 144:ef7eb2e8f9f7 72 *
<> 144:ef7eb2e8f9f7 73 * @returns The char read from the serial port
<> 144:ef7eb2e8f9f7 74 */
<> 144:ef7eb2e8f9f7 75 int getc();
<> 144:ef7eb2e8f9f7 76
<> 144:ef7eb2e8f9f7 77 /** Write a string to the serial port
<> 144:ef7eb2e8f9f7 78 *
<> 144:ef7eb2e8f9f7 79 * @param str The string to write
<> 144:ef7eb2e8f9f7 80 *
<> 144:ef7eb2e8f9f7 81 * @returns 0 if the write succeeds, EOF for error
<> 144:ef7eb2e8f9f7 82 */
<> 144:ef7eb2e8f9f7 83 int puts(const char *str);
<> 144:ef7eb2e8f9f7 84
<> 144:ef7eb2e8f9f7 85 int printf(const char *format, ...);
<> 144:ef7eb2e8f9f7 86
<> 144:ef7eb2e8f9f7 87 protected:
<> 144:ef7eb2e8f9f7 88
<> 144:ef7eb2e8f9f7 89 /** Acquire exclusive access to this serial port
<> 144:ef7eb2e8f9f7 90 */
<> 144:ef7eb2e8f9f7 91 virtual void lock(void);
<> 144:ef7eb2e8f9f7 92
<> 144:ef7eb2e8f9f7 93 /** Release exclusive access to this serial port
<> 144:ef7eb2e8f9f7 94 */
<> 144:ef7eb2e8f9f7 95 virtual void unlock(void);
<> 144:ef7eb2e8f9f7 96 };
<> 144:ef7eb2e8f9f7 97
<> 144:ef7eb2e8f9f7 98 } // namespace mbed
<> 144:ef7eb2e8f9f7 99
<> 144:ef7eb2e8f9f7 100 #endif
<> 144:ef7eb2e8f9f7 101
<> 144:ef7eb2e8f9f7 102 #endif