不韋 呂 / F746_Spectrogram

Realtime spectrogram for DISCO-F746NG. On-board MEMS microphone is used for input sound signal. リアルタイムスペクトログラム．入力：MEMSマイク

Dependencies:   F746_GUI F746_SAI_IO UIT_FFT_Real

mbed_src_STM32F7/api/SPISlave.h@6:b3885567877c, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 13:43:07 2017 +0000
Revision:
6:b3885567877c
Parent:
4:c1beacfc42c7 
7

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 4:c1beacfc42c7 1 /* mbed Microcontroller Library
MikamiUitOpen 4:c1beacfc42c7 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 4:c1beacfc42c7 3 *
MikamiUitOpen 4:c1beacfc42c7 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 4:c1beacfc42c7 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 4:c1beacfc42c7 6 * You may obtain a copy of the License at
MikamiUitOpen 4:c1beacfc42c7 7 *
MikamiUitOpen 4:c1beacfc42c7 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 4:c1beacfc42c7 9 *
MikamiUitOpen 4:c1beacfc42c7 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 4:c1beacfc42c7 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 4:c1beacfc42c7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 4:c1beacfc42c7 13 * See the License for the specific language governing permissions and
MikamiUitOpen 4:c1beacfc42c7 14 * limitations under the License.
MikamiUitOpen 4:c1beacfc42c7 15 */
MikamiUitOpen 4:c1beacfc42c7 16 #ifndef MBED_SPISLAVE_H
MikamiUitOpen 4:c1beacfc42c7 17 #define MBED_SPISLAVE_H
MikamiUitOpen 4:c1beacfc42c7 18
MikamiUitOpen 4:c1beacfc42c7 19 #include "platform.h"
MikamiUitOpen 4:c1beacfc42c7 20
MikamiUitOpen 4:c1beacfc42c7 21 #if DEVICE_SPISLAVE
MikamiUitOpen 4:c1beacfc42c7 22
MikamiUitOpen 4:c1beacfc42c7 23 #include "spi_api.h"
MikamiUitOpen 4:c1beacfc42c7 24
MikamiUitOpen 4:c1beacfc42c7 25 namespace mbed {
MikamiUitOpen 4:c1beacfc42c7 26
MikamiUitOpen 4:c1beacfc42c7 27 /** A SPI slave, used for communicating with a SPI Master device
MikamiUitOpen 4:c1beacfc42c7 28 *
MikamiUitOpen 4:c1beacfc42c7 29 * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
MikamiUitOpen 4:c1beacfc42c7 30 *
MikamiUitOpen 4:c1beacfc42c7 31 * Example:
MikamiUitOpen 4:c1beacfc42c7 32 * @code
MikamiUitOpen 4:c1beacfc42c7 33 * // Reply to a SPI master as slave
MikamiUitOpen 4:c1beacfc42c7 34 *
MikamiUitOpen 4:c1beacfc42c7 35 * #include "mbed.h"
MikamiUitOpen 4:c1beacfc42c7 36 *
MikamiUitOpen 4:c1beacfc42c7 37 * SPISlave device(p5, p6, p7, p8); // mosi, miso, sclk, ssel
MikamiUitOpen 4:c1beacfc42c7 38 *
MikamiUitOpen 4:c1beacfc42c7 39 * int main() {
MikamiUitOpen 4:c1beacfc42c7 40 * device.reply(0x00); // Prime SPI with first reply
MikamiUitOpen 4:c1beacfc42c7 41 * while(1) {
MikamiUitOpen 4:c1beacfc42c7 42 * if(device.receive()) {
MikamiUitOpen 4:c1beacfc42c7 43 * int v = device.read(); // Read byte from master
MikamiUitOpen 4:c1beacfc42c7 44 * v = (v + 1) % 0x100; // Add one to it, modulo 256
MikamiUitOpen 4:c1beacfc42c7 45 * device.reply(v); // Make this the next reply
MikamiUitOpen 4:c1beacfc42c7 46 * }
MikamiUitOpen 4:c1beacfc42c7 47 * }
MikamiUitOpen 4:c1beacfc42c7 48 * }
MikamiUitOpen 4:c1beacfc42c7 49 * @endcode
MikamiUitOpen 4:c1beacfc42c7 50 */
MikamiUitOpen 4:c1beacfc42c7 51 class SPISlave {
MikamiUitOpen 4:c1beacfc42c7 52
MikamiUitOpen 4:c1beacfc42c7 53 public:
MikamiUitOpen 4:c1beacfc42c7 54
MikamiUitOpen 4:c1beacfc42c7 55 /** Create a SPI slave connected to the specified pins
MikamiUitOpen 4:c1beacfc42c7 56 *
MikamiUitOpen 4:c1beacfc42c7 57 * mosi or miso can be specfied as NC if not used
MikamiUitOpen 4:c1beacfc42c7 58 *
MikamiUitOpen 4:c1beacfc42c7 59 * @param mosi SPI Master Out, Slave In pin
MikamiUitOpen 4:c1beacfc42c7 60 * @param miso SPI Master In, Slave Out pin
MikamiUitOpen 4:c1beacfc42c7 61 * @param sclk SPI Clock pin
MikamiUitOpen 4:c1beacfc42c7 62 * @param ssel SPI chip select pin
MikamiUitOpen 4:c1beacfc42c7 63 */
MikamiUitOpen 4:c1beacfc42c7 64 SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel);
MikamiUitOpen 4:c1beacfc42c7 65
MikamiUitOpen 4:c1beacfc42c7 66 /** Configure the data transmission format
MikamiUitOpen 4:c1beacfc42c7 67 *
MikamiUitOpen 4:c1beacfc42c7 68 * @param bits Number of bits per SPI frame (4 - 16)
MikamiUitOpen 4:c1beacfc42c7 69 * @param mode Clock polarity and phase mode (0 - 3)
MikamiUitOpen 4:c1beacfc42c7 70 *
MikamiUitOpen 4:c1beacfc42c7 71 * @code
MikamiUitOpen 4:c1beacfc42c7 72 * mode | POL PHA
MikamiUitOpen 4:c1beacfc42c7 73 * -----+--------
MikamiUitOpen 4:c1beacfc42c7 74 * 0 | 0 0
MikamiUitOpen 4:c1beacfc42c7 75 * 1 | 0 1
MikamiUitOpen 4:c1beacfc42c7 76 * 2 | 1 0
MikamiUitOpen 4:c1beacfc42c7 77 * 3 | 1 1
MikamiUitOpen 4:c1beacfc42c7 78 * @endcode
MikamiUitOpen 4:c1beacfc42c7 79 */
MikamiUitOpen 4:c1beacfc42c7 80 void format(int bits, int mode = 0);
MikamiUitOpen 4:c1beacfc42c7 81
MikamiUitOpen 4:c1beacfc42c7 82 /** Set the spi bus clock frequency
MikamiUitOpen 4:c1beacfc42c7 83 *
MikamiUitOpen 4:c1beacfc42c7 84 * @param hz SCLK frequency in hz (default = 1MHz)
MikamiUitOpen 4:c1beacfc42c7 85 */
MikamiUitOpen 4:c1beacfc42c7 86 void frequency(int hz = 1000000);
MikamiUitOpen 4:c1beacfc42c7 87
MikamiUitOpen 4:c1beacfc42c7 88 /** Polls the SPI to see if data has been received
MikamiUitOpen 4:c1beacfc42c7 89 *
MikamiUitOpen 4:c1beacfc42c7 90 * @returns
MikamiUitOpen 4:c1beacfc42c7 91 * 0 if no data,
MikamiUitOpen 4:c1beacfc42c7 92 * 1 otherwise
MikamiUitOpen 4:c1beacfc42c7 93 */
MikamiUitOpen 4:c1beacfc42c7 94 int receive(void);
MikamiUitOpen 4:c1beacfc42c7 95
MikamiUitOpen 4:c1beacfc42c7 96 /** Retrieve data from receive buffer as slave
MikamiUitOpen 4:c1beacfc42c7 97 *
MikamiUitOpen 4:c1beacfc42c7 98 * @returns
MikamiUitOpen 4:c1beacfc42c7 99 * the data in the receive buffer
MikamiUitOpen 4:c1beacfc42c7 100 */
MikamiUitOpen 4:c1beacfc42c7 101 int read(void);
MikamiUitOpen 4:c1beacfc42c7 102
MikamiUitOpen 4:c1beacfc42c7 103 /** Fill the transmission buffer with the value to be written out
MikamiUitOpen 4:c1beacfc42c7 104 * as slave on the next received message from the master.
MikamiUitOpen 4:c1beacfc42c7 105 *
MikamiUitOpen 4:c1beacfc42c7 106 * @param value the data to be transmitted next
MikamiUitOpen 4:c1beacfc42c7 107 */
MikamiUitOpen 4:c1beacfc42c7 108 void reply(int value);
MikamiUitOpen 4:c1beacfc42c7 109
MikamiUitOpen 4:c1beacfc42c7 110 protected:
MikamiUitOpen 4:c1beacfc42c7 111 spi_t _spi;
MikamiUitOpen 4:c1beacfc42c7 112
MikamiUitOpen 4:c1beacfc42c7 113 int _bits;
MikamiUitOpen 4:c1beacfc42c7 114 int _mode;
MikamiUitOpen 4:c1beacfc42c7 115 int _hz;
MikamiUitOpen 4:c1beacfc42c7 116 };
MikamiUitOpen 4:c1beacfc42c7 117
MikamiUitOpen 4:c1beacfc42c7 118 } // namespace mbed
MikamiUitOpen 4:c1beacfc42c7 119
MikamiUitOpen 4:c1beacfc42c7 120 #endif
MikamiUitOpen 4:c1beacfc42c7 121
MikamiUitOpen 4:c1beacfc42c7 122 #endif