Zachary Newman / Mbed 2 deprecated pls_work_ablex

pls

Dependencies:   BLE_API mbed nRF51822

Fork of zach_thresholding by Zachary Newman

wire.h@15:d117591084ff, 2017-05-02 (annotated)

Committer:
nkosarek
Date:
Tue May 02 04:16:38 2017 +0000
Revision:
15:d117591084ff
Working i2c to ble to pi without serial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nkosarek 15:d117591084ff 1 /*
nkosarek 15:d117591084ff 2
nkosarek 15:d117591084ff 3 Copyright (c) 2014 RedBearLab, All rights reserved.
nkosarek 15:d117591084ff 4
nkosarek 15:d117591084ff 5 This library is free software; you can redistribute it and/or
nkosarek 15:d117591084ff 6 modify it under the terms of the GNU Lesser General Public
nkosarek 15:d117591084ff 7 License as published by the Free Software Foundation; either
nkosarek 15:d117591084ff 8 version 2.1 of the License, or (at your option) any later version.
nkosarek 15:d117591084ff 9
nkosarek 15:d117591084ff 10 This library is distributed in the hope that it will be useful,
nkosarek 15:d117591084ff 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nkosarek 15:d117591084ff 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
nkosarek 15:d117591084ff 13 See the GNU Lesser General Public License for more details.
nkosarek 15:d117591084ff 14
nkosarek 15:d117591084ff 15 You should have received a copy of the GNU Lesser General Public
nkosarek 15:d117591084ff 16 License along with this library; if not, write to the Free Software
nkosarek 15:d117591084ff 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
nkosarek 15:d117591084ff 18
nkosarek 15:d117591084ff 19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
nkosarek 15:d117591084ff 20 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
nkosarek 15:d117591084ff 21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
nkosarek 15:d117591084ff 22 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
nkosarek 15:d117591084ff 23 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
nkosarek 15:d117591084ff 24 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
nkosarek 15:d117591084ff 25 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
nkosarek 15:d117591084ff 26
nkosarek 15:d117591084ff 27 */
nkosarek 15:d117591084ff 28
nkosarek 15:d117591084ff 29 #ifndef _WIRE_H_
nkosarek 15:d117591084ff 30 #define _WIRE_H_
nkosarek 15:d117591084ff 31
nkosarek 15:d117591084ff 32 #include "mbed.h"
nkosarek 15:d117591084ff 33
nkosarek 15:d117591084ff 34 #define TWI_DELAY(x) wait_us(x);
nkosarek 15:d117591084ff 35
nkosarek 15:d117591084ff 36 #define BUFF_MAX_LENGTH 128
nkosarek 15:d117591084ff 37
nkosarek 15:d117591084ff 38 #define MAX_TIMEOUT_LOOPS (20000UL)
nkosarek 15:d117591084ff 39
nkosarek 15:d117591084ff 40 #define TWI_FREQUENCY_100K 0
nkosarek 15:d117591084ff 41 #define TWI_FREQUENCY_250K 1
nkosarek 15:d117591084ff 42 #define TWI_FREQUENCY_400K 2
nkosarek 15:d117591084ff 43
nkosarek 15:d117591084ff 44 #define TWI_SCL 28
nkosarek 15:d117591084ff 45 #define TWI_SDA 29
nkosarek 15:d117591084ff 46
nkosarek 15:d117591084ff 47
nkosarek 15:d117591084ff 48 class TwoWire
nkosarek 15:d117591084ff 49 {
nkosarek 15:d117591084ff 50 public :
nkosarek 15:d117591084ff 51 TwoWire(NRF_TWI_Type *twi_use);
nkosarek 15:d117591084ff 52 void begin();
nkosarek 15:d117591084ff 53 void begin(uint32_t scl_pin, uint32_t sda_pin, uint8_t speed);
nkosarek 15:d117591084ff 54 void beginTransmission(uint8_t);
nkosarek 15:d117591084ff 55 void beginTransmission(int);
nkosarek 15:d117591084ff 56 uint8_t endTransmission(void);
nkosarek 15:d117591084ff 57 uint8_t endTransmission(uint8_t);
nkosarek 15:d117591084ff 58 uint8_t requestFrom(uint8_t, uint8_t);
nkosarek 15:d117591084ff 59 uint8_t requestFrom(uint8_t, uint8_t, uint8_t);
nkosarek 15:d117591084ff 60 uint8_t requestFrom(int, int);
nkosarek 15:d117591084ff 61 uint8_t requestFrom(int, int, int);
nkosarek 15:d117591084ff 62 int write(uint8_t);
nkosarek 15:d117591084ff 63 int write(const uint8_t *, size_t);
nkosarek 15:d117591084ff 64 int available(void);
nkosarek 15:d117591084ff 65 int read(void);
nkosarek 15:d117591084ff 66
nkosarek 15:d117591084ff 67 private :
nkosarek 15:d117591084ff 68 uint8_t RX_Buffer[BUFF_MAX_LENGTH];
nkosarek 15:d117591084ff 69 uint8_t RX_BufferIndex;
nkosarek 15:d117591084ff 70 uint8_t RX_BufferLength;
nkosarek 15:d117591084ff 71
nkosarek 15:d117591084ff 72 uint8_t TX_Buffer[BUFF_MAX_LENGTH];
nkosarek 15:d117591084ff 73 uint8_t TX_BufferIndex;
nkosarek 15:d117591084ff 74 uint8_t TX_BufferLength;
nkosarek 15:d117591084ff 75
nkosarek 15:d117591084ff 76 NRF_TWI_Type *twi;
nkosarek 15:d117591084ff 77
nkosarek 15:d117591084ff 78 uint8_t PPI_channel;
nkosarek 15:d117591084ff 79 uint8_t Transform_Addr;
nkosarek 15:d117591084ff 80
nkosarek 15:d117591084ff 81 uint32_t SDA_Pin;
nkosarek 15:d117591084ff 82 uint32_t SCL_Pin;
nkosarek 15:d117591084ff 83
nkosarek 15:d117591084ff 84 uint32_t twi_frequency;
nkosarek 15:d117591084ff 85
nkosarek 15:d117591084ff 86 enum TwoWireStatus {
nkosarek 15:d117591084ff 87 UNINITIALIZED,
nkosarek 15:d117591084ff 88 MASTER_IDLE,
nkosarek 15:d117591084ff 89 MASTER_SEND,
nkosarek 15:d117591084ff 90 MASTER_RECV,
nkosarek 15:d117591084ff 91 SLAVE_IDLE,
nkosarek 15:d117591084ff 92 SLAVE_RECV,
nkosarek 15:d117591084ff 93 SLAVE_SEND
nkosarek 15:d117591084ff 94 };
nkosarek 15:d117591084ff 95 TwoWireStatus twi_status;
nkosarek 15:d117591084ff 96
nkosarek 15:d117591084ff 97 bool twi_master_clear_bus(void);
nkosarek 15:d117591084ff 98 bool twi_master_init(void);
nkosarek 15:d117591084ff 99 uint8_t twi_master_read(uint8_t *data, uint8_t data_length, uint8_t issue_stop_condition);
nkosarek 15:d117591084ff 100 uint8_t twi_master_write(uint8_t *data, uint8_t data_length, uint8_t issue_stop_condition);
nkosarek 15:d117591084ff 101 };
nkosarek 15:d117591084ff 102
nkosarek 15:d117591084ff 103 #endif