test1
Dependencies: BLE_API mbed nRF51822
Fork of I2C_Demo by
main.cpp@0:34c256ab7309, 2014-12-01 (annotated)
- Committer:
- RedBearLab
- Date:
- Mon Dec 01 02:07:49 2014 +0000
- Revision:
- 0:34c256ab7309
First commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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RedBearLab | 0:34c256ab7309 | 1 | /* |
RedBearLab | 0:34c256ab7309 | 2 | |
RedBearLab | 0:34c256ab7309 | 3 | Copyright (c) 2012-2014 RedBearLab |
RedBearLab | 0:34c256ab7309 | 4 | |
RedBearLab | 0:34c256ab7309 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
RedBearLab | 0:34c256ab7309 | 6 | and associated documentation files (the "Software"), to deal in the Software without restriction, |
RedBearLab | 0:34c256ab7309 | 7 | including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, |
RedBearLab | 0:34c256ab7309 | 8 | and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, |
RedBearLab | 0:34c256ab7309 | 9 | subject to the following conditions: |
RedBearLab | 0:34c256ab7309 | 10 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. |
RedBearLab | 0:34c256ab7309 | 11 | |
RedBearLab | 0:34c256ab7309 | 12 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
RedBearLab | 0:34c256ab7309 | 13 | INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
RedBearLab | 0:34c256ab7309 | 14 | PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE |
RedBearLab | 0:34c256ab7309 | 15 | FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
RedBearLab | 0:34c256ab7309 | 16 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
RedBearLab | 0:34c256ab7309 | 17 | |
RedBearLab | 0:34c256ab7309 | 18 | */ |
RedBearLab | 0:34c256ab7309 | 19 | |
RedBearLab | 0:34c256ab7309 | 20 | #include "mbed.h" |
RedBearLab | 0:34c256ab7309 | 21 | #include "wire.h" |
RedBearLab | 0:34c256ab7309 | 22 | |
RedBearLab | 0:34c256ab7309 | 23 | #define BLE_Nano |
RedBearLab | 0:34c256ab7309 | 24 | //#define nRF_51822 |
RedBearLab | 0:34c256ab7309 | 25 | |
RedBearLab | 0:34c256ab7309 | 26 | |
RedBearLab | 0:34c256ab7309 | 27 | #ifdef nRF_51822 |
RedBearLab | 0:34c256ab7309 | 28 | #define SCL 28 |
RedBearLab | 0:34c256ab7309 | 29 | #define SDA 29 |
RedBearLab | 0:34c256ab7309 | 30 | #endif |
RedBearLab | 0:34c256ab7309 | 31 | |
RedBearLab | 0:34c256ab7309 | 32 | #ifdef BLE_Nano |
RedBearLab | 0:34c256ab7309 | 33 | #define SCL 7 |
RedBearLab | 0:34c256ab7309 | 34 | #define SDA 6 |
RedBearLab | 0:34c256ab7309 | 35 | #endif |
RedBearLab | 0:34c256ab7309 | 36 | |
RedBearLab | 0:34c256ab7309 | 37 | #define DEV_ADDR 0xA0 |
RedBearLab | 0:34c256ab7309 | 38 | |
RedBearLab | 0:34c256ab7309 | 39 | Serial pc(USBTX, USBRX); |
RedBearLab | 0:34c256ab7309 | 40 | TwoWire Wire = TwoWire(NRF_TWI0); |
RedBearLab | 0:34c256ab7309 | 41 | |
RedBearLab | 0:34c256ab7309 | 42 | void AT24C512_WriteBytes(uint16_t addr, uint8_t *pbuf, uint16_t length) |
RedBearLab | 0:34c256ab7309 | 43 | { |
RedBearLab | 0:34c256ab7309 | 44 | Wire.beginTransmission(DEV_ADDR); |
RedBearLab | 0:34c256ab7309 | 45 | Wire.write( (uint8_t)addr>>8 ); |
RedBearLab | 0:34c256ab7309 | 46 | Wire.write( (uint8_t)addr ); |
RedBearLab | 0:34c256ab7309 | 47 | Wire.write(pbuf, length); |
RedBearLab | 0:34c256ab7309 | 48 | Wire.endTransmission(); |
RedBearLab | 0:34c256ab7309 | 49 | } |
RedBearLab | 0:34c256ab7309 | 50 | |
RedBearLab | 0:34c256ab7309 | 51 | void AT24C512_ReadBytes(uint16_t addr, uint8_t *pbuf, uint16_t length) |
RedBearLab | 0:34c256ab7309 | 52 | { |
RedBearLab | 0:34c256ab7309 | 53 | Wire.beginTransmission(DEV_ADDR); |
RedBearLab | 0:34c256ab7309 | 54 | Wire.write( (uint8_t)addr>>8 ); |
RedBearLab | 0:34c256ab7309 | 55 | Wire.write( (uint8_t)addr ); |
RedBearLab | 0:34c256ab7309 | 56 | Wire.endTransmission(); |
RedBearLab | 0:34c256ab7309 | 57 | |
RedBearLab | 0:34c256ab7309 | 58 | Wire.requestFrom(DEV_ADDR+1, length); |
RedBearLab | 0:34c256ab7309 | 59 | while( Wire.available() > 0 ) |
RedBearLab | 0:34c256ab7309 | 60 | { |
RedBearLab | 0:34c256ab7309 | 61 | *pbuf = Wire.read(); |
RedBearLab | 0:34c256ab7309 | 62 | pbuf++; |
RedBearLab | 0:34c256ab7309 | 63 | } |
RedBearLab | 0:34c256ab7309 | 64 | } |
RedBearLab | 0:34c256ab7309 | 65 | |
RedBearLab | 0:34c256ab7309 | 66 | |
RedBearLab | 0:34c256ab7309 | 67 | static uint8_t wt_data[10] = {'H', 'e', 'l', 'l', 'o', 'W', 'o', 'r', 'l', 'd'}; |
RedBearLab | 0:34c256ab7309 | 68 | static uint8_t rd_data[10]; |
RedBearLab | 0:34c256ab7309 | 69 | |
RedBearLab | 0:34c256ab7309 | 70 | static uint16_t index; |
RedBearLab | 0:34c256ab7309 | 71 | |
RedBearLab | 0:34c256ab7309 | 72 | int main(void) |
RedBearLab | 0:34c256ab7309 | 73 | { |
RedBearLab | 0:34c256ab7309 | 74 | pc.baud(9600); |
RedBearLab | 0:34c256ab7309 | 75 | wait(5); |
RedBearLab | 0:34c256ab7309 | 76 | //Wire.begin(); |
RedBearLab | 0:34c256ab7309 | 77 | Wire.begin(SCL, SDA, TWI_FREQUENCY_100K); |
RedBearLab | 0:34c256ab7309 | 78 | pc.printf("IIC Demo Start \r\n"); |
RedBearLab | 0:34c256ab7309 | 79 | |
RedBearLab | 0:34c256ab7309 | 80 | AT24C512_WriteBytes(0, wt_data, 10); |
RedBearLab | 0:34c256ab7309 | 81 | wait(0.1); |
RedBearLab | 0:34c256ab7309 | 82 | |
RedBearLab | 0:34c256ab7309 | 83 | while(1) |
RedBearLab | 0:34c256ab7309 | 84 | { |
RedBearLab | 0:34c256ab7309 | 85 | AT24C512_ReadBytes(0, rd_data, 10); |
RedBearLab | 0:34c256ab7309 | 86 | pc.printf("Read data from AT24C512 \r\n"); |
RedBearLab | 0:34c256ab7309 | 87 | for(index=0; index<10; index++) |
RedBearLab | 0:34c256ab7309 | 88 | { |
RedBearLab | 0:34c256ab7309 | 89 | pc.putc(rd_data[index]); |
RedBearLab | 0:34c256ab7309 | 90 | rd_data[index] = 0x00; |
RedBearLab | 0:34c256ab7309 | 91 | } |
RedBearLab | 0:34c256ab7309 | 92 | pc.printf("\r\n"); |
RedBearLab | 0:34c256ab7309 | 93 | wait(1); |
RedBearLab | 0:34c256ab7309 | 94 | } |
RedBearLab | 0:34c256ab7309 | 95 | } |
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