test1
Dependencies: BLE_API mbed nRF51822
Fork of I2C_Demo by
wire.h@3:f82d65a3b0e8, 2017-09-01 (annotated)
- Committer:
- leighton_corr
- Date:
- Fri Sep 01 07:19:25 2017 +0000
- Revision:
- 3:f82d65a3b0e8
- Parent:
- 0:34c256ab7309
test1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
RedBearLab | 0:34c256ab7309 | 1 | |
RedBearLab | 0:34c256ab7309 | 2 | /* |
RedBearLab | 0:34c256ab7309 | 3 | |
RedBearLab | 0:34c256ab7309 | 4 | Copyright (c) 2014 RedBearLab, All rights reserved. |
RedBearLab | 0:34c256ab7309 | 5 | |
RedBearLab | 0:34c256ab7309 | 6 | This library is free software; you can redistribute it and/or |
RedBearLab | 0:34c256ab7309 | 7 | modify it under the terms of the GNU Lesser General Public |
RedBearLab | 0:34c256ab7309 | 8 | License as published by the Free Software Foundation; either |
RedBearLab | 0:34c256ab7309 | 9 | version 2.1 of the License, or (at your option) any later version. |
RedBearLab | 0:34c256ab7309 | 10 | |
RedBearLab | 0:34c256ab7309 | 11 | This library is distributed in the hope that it will be useful, |
RedBearLab | 0:34c256ab7309 | 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
RedBearLab | 0:34c256ab7309 | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
RedBearLab | 0:34c256ab7309 | 14 | See the GNU Lesser General Public License for more details. |
RedBearLab | 0:34c256ab7309 | 15 | |
RedBearLab | 0:34c256ab7309 | 16 | You should have received a copy of the GNU Lesser General Public |
RedBearLab | 0:34c256ab7309 | 17 | License along with this library; if not, write to the Free Software |
RedBearLab | 0:34c256ab7309 | 18 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
RedBearLab | 0:34c256ab7309 | 19 | |
RedBearLab | 0:34c256ab7309 | 20 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
RedBearLab | 0:34c256ab7309 | 21 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
RedBearLab | 0:34c256ab7309 | 22 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
RedBearLab | 0:34c256ab7309 | 23 | IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
RedBearLab | 0:34c256ab7309 | 24 | CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
RedBearLab | 0:34c256ab7309 | 25 | TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
RedBearLab | 0:34c256ab7309 | 26 | SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
RedBearLab | 0:34c256ab7309 | 27 | |
RedBearLab | 0:34c256ab7309 | 28 | */ |
RedBearLab | 0:34c256ab7309 | 29 | |
RedBearLab | 0:34c256ab7309 | 30 | #ifndef _WIRE_H_ |
RedBearLab | 0:34c256ab7309 | 31 | #define _WIRE_H_ |
RedBearLab | 0:34c256ab7309 | 32 | |
RedBearLab | 0:34c256ab7309 | 33 | #include "mbed.h" |
RedBearLab | 0:34c256ab7309 | 34 | |
RedBearLab | 0:34c256ab7309 | 35 | #define TWI_DELAY(x) wait_us(x); |
RedBearLab | 0:34c256ab7309 | 36 | |
RedBearLab | 0:34c256ab7309 | 37 | #define BUFF_MAX_LENGTH 128 |
RedBearLab | 0:34c256ab7309 | 38 | |
RedBearLab | 0:34c256ab7309 | 39 | #define MAX_TIMEOUT_LOOPS (20000UL) |
RedBearLab | 0:34c256ab7309 | 40 | |
RedBearLab | 0:34c256ab7309 | 41 | #define TWI_FREQUENCY_100K 0 |
RedBearLab | 0:34c256ab7309 | 42 | #define TWI_FREQUENCY_250K 1 |
RedBearLab | 0:34c256ab7309 | 43 | #define TWI_FREQUENCY_400K 2 |
RedBearLab | 0:34c256ab7309 | 44 | |
RedBearLab | 0:34c256ab7309 | 45 | #define TWI_SCL 28 |
RedBearLab | 0:34c256ab7309 | 46 | #define TWI_SDA 29 |
RedBearLab | 0:34c256ab7309 | 47 | |
RedBearLab | 0:34c256ab7309 | 48 | |
RedBearLab | 0:34c256ab7309 | 49 | class TwoWire |
RedBearLab | 0:34c256ab7309 | 50 | { |
RedBearLab | 0:34c256ab7309 | 51 | public : |
RedBearLab | 0:34c256ab7309 | 52 | TwoWire(NRF_TWI_Type *twi_use); |
RedBearLab | 0:34c256ab7309 | 53 | void begin(); |
RedBearLab | 0:34c256ab7309 | 54 | void begin(uint32_t scl_pin, uint32_t sda_pin, uint8_t speed); |
RedBearLab | 0:34c256ab7309 | 55 | void beginTransmission(uint8_t); |
RedBearLab | 0:34c256ab7309 | 56 | void beginTransmission(int); |
RedBearLab | 0:34c256ab7309 | 57 | uint8_t endTransmission(void); |
RedBearLab | 0:34c256ab7309 | 58 | uint8_t endTransmission(uint8_t); |
RedBearLab | 0:34c256ab7309 | 59 | uint8_t requestFrom(uint8_t, uint8_t); |
RedBearLab | 0:34c256ab7309 | 60 | uint8_t requestFrom(uint8_t, uint8_t, uint8_t); |
RedBearLab | 0:34c256ab7309 | 61 | uint8_t requestFrom(int, int); |
RedBearLab | 0:34c256ab7309 | 62 | uint8_t requestFrom(int, int, int); |
RedBearLab | 0:34c256ab7309 | 63 | int write(uint8_t); |
RedBearLab | 0:34c256ab7309 | 64 | int write(const uint8_t *, size_t); |
RedBearLab | 0:34c256ab7309 | 65 | int available(void); |
RedBearLab | 0:34c256ab7309 | 66 | int read(void); |
RedBearLab | 0:34c256ab7309 | 67 | |
RedBearLab | 0:34c256ab7309 | 68 | private : |
RedBearLab | 0:34c256ab7309 | 69 | uint8_t RX_Buffer[BUFF_MAX_LENGTH]; |
RedBearLab | 0:34c256ab7309 | 70 | uint8_t RX_BufferIndex; |
RedBearLab | 0:34c256ab7309 | 71 | uint8_t RX_BufferLength; |
RedBearLab | 0:34c256ab7309 | 72 | |
RedBearLab | 0:34c256ab7309 | 73 | uint8_t TX_Buffer[BUFF_MAX_LENGTH]; |
RedBearLab | 0:34c256ab7309 | 74 | uint8_t TX_BufferIndex; |
RedBearLab | 0:34c256ab7309 | 75 | uint8_t TX_BufferLength; |
RedBearLab | 0:34c256ab7309 | 76 | |
RedBearLab | 0:34c256ab7309 | 77 | NRF_TWI_Type *twi; |
RedBearLab | 0:34c256ab7309 | 78 | |
RedBearLab | 0:34c256ab7309 | 79 | uint8_t PPI_channel; |
RedBearLab | 0:34c256ab7309 | 80 | uint8_t Transform_Addr; |
RedBearLab | 0:34c256ab7309 | 81 | |
RedBearLab | 0:34c256ab7309 | 82 | uint32_t SDA_Pin; |
RedBearLab | 0:34c256ab7309 | 83 | uint32_t SCL_Pin; |
RedBearLab | 0:34c256ab7309 | 84 | |
RedBearLab | 0:34c256ab7309 | 85 | uint32_t twi_frequency; |
RedBearLab | 0:34c256ab7309 | 86 | |
RedBearLab | 0:34c256ab7309 | 87 | enum TwoWireStatus { |
RedBearLab | 0:34c256ab7309 | 88 | UNINITIALIZED, |
RedBearLab | 0:34c256ab7309 | 89 | MASTER_IDLE, |
RedBearLab | 0:34c256ab7309 | 90 | MASTER_SEND, |
RedBearLab | 0:34c256ab7309 | 91 | MASTER_RECV, |
RedBearLab | 0:34c256ab7309 | 92 | SLAVE_IDLE, |
RedBearLab | 0:34c256ab7309 | 93 | SLAVE_RECV, |
RedBearLab | 0:34c256ab7309 | 94 | SLAVE_SEND |
RedBearLab | 0:34c256ab7309 | 95 | }; |
RedBearLab | 0:34c256ab7309 | 96 | TwoWireStatus twi_status; |
RedBearLab | 0:34c256ab7309 | 97 | |
RedBearLab | 0:34c256ab7309 | 98 | bool twi_master_clear_bus(void); |
RedBearLab | 0:34c256ab7309 | 99 | bool twi_master_init(void); |
RedBearLab | 0:34c256ab7309 | 100 | uint8_t twi_master_read(uint8_t *data, uint8_t data_length, uint8_t issue_stop_condition); |
RedBearLab | 0:34c256ab7309 | 101 | uint8_t twi_master_write(uint8_t *data, uint8_t data_length, uint8_t issue_stop_condition); |
RedBearLab | 0:34c256ab7309 | 102 | }; |
RedBearLab | 0:34c256ab7309 | 103 | |
RedBearLab | 0:34c256ab7309 | 104 | #endif |