Wang Xinglu / BLE_API

High level Bluetooth Low Energy API and radio abstraction layer

Dependencies:   nRF51822

Dependents:   LinkNode_LIS3DH

Fork of BLE_API by Bluetooth Low Energy

hw/nrf51822.cpp@1:fd3ec64b2345, 2013-12-04 (annotated)

Committer:
ktownsend
Date:
Wed Dec 04 07:20:24 2013 +0000
Revision:
1:fd3ec64b2345
Parent:
0:ace2e8d3ce79
Child:
2:ffc5216bd2cc
Added LPC1768 pinout

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ktownsend 0:ace2e8d3ce79 1 #include "nrf51822.h"
ktownsend 0:ace2e8d3ce79 2 #include "mbed.h"
ktownsend 0:ace2e8d3ce79 3
ktownsend 0:ace2e8d3ce79 4 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 5 /*!
ktownsend 0:ace2e8d3ce79 6 @brief UART callback function
ktownsend 0:ace2e8d3ce79 7 */
ktownsend 0:ace2e8d3ce79 8 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 9 void nRF51822::uartCallback(void)
ktownsend 0:ace2e8d3ce79 10 {
ktownsend 0:ace2e8d3ce79 11 /* ToDo: Check responses and set a flag for success/error/etc. */
ktownsend 0:ace2e8d3ce79 12
ktownsend 0:ace2e8d3ce79 13 /* Read serial to clear the RX interrupt */
ktownsend 0:ace2e8d3ce79 14 uart.getc();
ktownsend 0:ace2e8d3ce79 15 }
ktownsend 0:ace2e8d3ce79 16
ktownsend 0:ace2e8d3ce79 17 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 18 /*!
ktownsend 0:ace2e8d3ce79 19 @brief Constructor
ktownsend 0:ace2e8d3ce79 20
ktownsend 0:ace2e8d3ce79 21 @args fptr[in] Pointer to the callback function when any radio
ktownsend 0:ace2e8d3ce79 22 event is raised by the radio HW.
ktownsend 0:ace2e8d3ce79 23 */
ktownsend 0:ace2e8d3ce79 24 /**************************************************************************/
ktownsend 1:fd3ec64b2345 25 //nRF51822::nRF51822() : uart(P0_4, P0_0) /* LPC812 */
ktownsend 1:fd3ec64b2345 26 nRF51822::nRF51822() : uart(p9, p10) /* LPC1768 using apps board */
ktownsend 0:ace2e8d3ce79 27 {
ktownsend 0:ace2e8d3ce79 28 /* Setup the nRF UART interface */
ktownsend 0:ace2e8d3ce79 29 uart.baud(9600);
ktownsend 0:ace2e8d3ce79 30
ktownsend 0:ace2e8d3ce79 31 /* Echo data on the debug CDC port */
ktownsend 0:ace2e8d3ce79 32 uart.attach(this, &nRF51822::uartCallback);
ktownsend 0:ace2e8d3ce79 33
ktownsend 0:ace2e8d3ce79 34 /* Add flow control for UART (required by the nRF51822) */
ktownsend 1:fd3ec64b2345 35 //uart.set_flow_control(Serial::RTSCTS, P0_6, P0_8); /* LPC812 */
ktownsend 1:fd3ec64b2345 36 uart.set_flow_control(Serial::RTSCTS, p30, p29); /* LPC1768 */
ktownsend 0:ace2e8d3ce79 37
ktownsend 0:ace2e8d3ce79 38 /* Reset the service counter */
ktownsend 0:ace2e8d3ce79 39 serviceCount = 0;
ktownsend 0:ace2e8d3ce79 40 }
ktownsend 0:ace2e8d3ce79 41
ktownsend 0:ace2e8d3ce79 42 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 43 /*!
ktownsend 0:ace2e8d3ce79 44 @brief Destructor
ktownsend 0:ace2e8d3ce79 45 */
ktownsend 0:ace2e8d3ce79 46 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 47 nRF51822::~nRF51822(void)
ktownsend 0:ace2e8d3ce79 48 {
ktownsend 0:ace2e8d3ce79 49 }
ktownsend 0:ace2e8d3ce79 50
ktownsend 0:ace2e8d3ce79 51 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 52 /*!
ktownsend 0:ace2e8d3ce79 53
ktownsend 0:ace2e8d3ce79 54 */
ktownsend 0:ace2e8d3ce79 55 /**************************************************************************/
ktownsend 1:fd3ec64b2345 56 //ble_error_t nRF51822::attach(void (*fptr)(void))
ktownsend 1:fd3ec64b2345 57 //{
ktownsend 1:fd3ec64b2345 58 // return BLE_ERROR_NONE;
ktownsend 1:fd3ec64b2345 59 //}
ktownsend 0:ace2e8d3ce79 60
ktownsend 0:ace2e8d3ce79 61 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 62 /*!
ktownsend 0:ace2e8d3ce79 63
ktownsend 0:ace2e8d3ce79 64 */
ktownsend 0:ace2e8d3ce79 65 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 66 ble_error_t nRF51822::addService(BLEService & service)
ktownsend 0:ace2e8d3ce79 67 {
ktownsend 0:ace2e8d3ce79 68 /* ToDo: Make sure we don't overflow the array, etc. */
ktownsend 0:ace2e8d3ce79 69 /* ToDo: Make sure this service UUID doesn't already exist (?) */
ktownsend 0:ace2e8d3ce79 70 /* ToDo: Basic validation */
ktownsend 0:ace2e8d3ce79 71
ktownsend 0:ace2e8d3ce79 72 /* Add the service to the nRF51 */
ktownsend 0:ace2e8d3ce79 73 if (service.primaryServiceID.type == UUID::UUID_TYPE_SHORT)
ktownsend 0:ace2e8d3ce79 74 {
ktownsend 0:ace2e8d3ce79 75 /* 16-bit BLE UUID */
ktownsend 0:ace2e8d3ce79 76 uart.printf("10 01 00 04 01 02 %02X %02X\r\n",
ktownsend 0:ace2e8d3ce79 77 service.primaryServiceID.value & 0xFF,
ktownsend 0:ace2e8d3ce79 78 service.primaryServiceID.value >> 8);
ktownsend 0:ace2e8d3ce79 79 }
ktownsend 0:ace2e8d3ce79 80 else
ktownsend 0:ace2e8d3ce79 81 {
ktownsend 0:ace2e8d3ce79 82 /* 128-bit Custom UUID */
ktownsend 0:ace2e8d3ce79 83 uart.printf("10 01 00 12 01 10 %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\r\n",
ktownsend 0:ace2e8d3ce79 84 service.primaryServiceID.base[0],
ktownsend 0:ace2e8d3ce79 85 service.primaryServiceID.base[1],
ktownsend 0:ace2e8d3ce79 86 service.primaryServiceID.base[2],
ktownsend 0:ace2e8d3ce79 87 service.primaryServiceID.base[3],
ktownsend 0:ace2e8d3ce79 88 service.primaryServiceID.base[4],
ktownsend 0:ace2e8d3ce79 89 service.primaryServiceID.base[5],
ktownsend 0:ace2e8d3ce79 90 service.primaryServiceID.base[6],
ktownsend 0:ace2e8d3ce79 91 service.primaryServiceID.base[7],
ktownsend 0:ace2e8d3ce79 92 service.primaryServiceID.base[8],
ktownsend 0:ace2e8d3ce79 93 service.primaryServiceID.base[9],
ktownsend 0:ace2e8d3ce79 94 service.primaryServiceID.base[10],
ktownsend 0:ace2e8d3ce79 95 service.primaryServiceID.base[11],
ktownsend 0:ace2e8d3ce79 96 service.primaryServiceID.base[12],
ktownsend 0:ace2e8d3ce79 97 service.primaryServiceID.base[13],
ktownsend 0:ace2e8d3ce79 98 service.primaryServiceID.base[14],
ktownsend 0:ace2e8d3ce79 99 service.primaryServiceID.base[15]);
ktownsend 0:ace2e8d3ce79 100 }
ktownsend 0:ace2e8d3ce79 101
ktownsend 0:ace2e8d3ce79 102 /* ToDo: Check response */
ktownsend 0:ace2e8d3ce79 103 wait(0.1);
ktownsend 0:ace2e8d3ce79 104
ktownsend 0:ace2e8d3ce79 105 /* Add characteristics to the service */
ktownsend 0:ace2e8d3ce79 106 for (uint8_t i = 0; i < service.characteristicCount; i++)
ktownsend 0:ace2e8d3ce79 107 {
ktownsend 0:ace2e8d3ce79 108 /* Command ID = 0x0002 */
ktownsend 0:ace2e8d3ce79 109 uart.printf("10 02 00 0F 01 02 %02X %02X 04 02 %02X %02X 05 02 %02X %02X 03 01 %02X\r\n",
ktownsend 0:ace2e8d3ce79 110 service.characteristics[i].id & 0xFF,
ktownsend 0:ace2e8d3ce79 111 service.characteristics[i].id >> 8,
ktownsend 0:ace2e8d3ce79 112 service.characteristics[i].lenMin & 0xFF,
ktownsend 0:ace2e8d3ce79 113 service.characteristics[i].lenMin >> 8,
ktownsend 0:ace2e8d3ce79 114 service.characteristics[i].lenMax & 0xFF,
ktownsend 0:ace2e8d3ce79 115 service.characteristics[i].lenMax >> 8,
ktownsend 0:ace2e8d3ce79 116 service.characteristics[i].properties);
ktownsend 0:ace2e8d3ce79 117
ktownsend 0:ace2e8d3ce79 118 /* ToDo: Check response */
ktownsend 0:ace2e8d3ce79 119 wait(0.1);
ktownsend 0:ace2e8d3ce79 120 }
ktownsend 0:ace2e8d3ce79 121
ktownsend 0:ace2e8d3ce79 122 /* Update the service index value */
ktownsend 0:ace2e8d3ce79 123 service.index = serviceCount;
ktownsend 0:ace2e8d3ce79 124 serviceCount++;
ktownsend 0:ace2e8d3ce79 125
ktownsend 0:ace2e8d3ce79 126 return BLE_ERROR_NONE;
ktownsend 0:ace2e8d3ce79 127 }
ktownsend 0:ace2e8d3ce79 128
ktownsend 0:ace2e8d3ce79 129 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 130 /*!
ktownsend 0:ace2e8d3ce79 131 @brief Updates the value of a characteristic, based on the service
ktownsend 0:ace2e8d3ce79 132 and characteristic index fields
ktownsend 0:ace2e8d3ce79 133
ktownsend 0:ace2e8d3ce79 134 @param[in] sIndex
ktownsend 0:ace2e8d3ce79 135 The BLEService's index value (.index)
ktownsend 0:ace2e8d3ce79 136 @param[in] cIndex
ktownsend 0:ace2e8d3ce79 137 The BLECharacteristic's index value (.index)
ktownsend 0:ace2e8d3ce79 138 @param[in] buffer
ktownsend 0:ace2e8d3ce79 139 Data to use when updating the characteristic's value
ktownsend 0:ace2e8d3ce79 140 (raw byte array in LSB format)
ktownsend 0:ace2e8d3ce79 141 @param[in] len
ktownsend 0:ace2e8d3ce79 142 The number of bytes in buffer
ktownsend 0:ace2e8d3ce79 143 */
ktownsend 0:ace2e8d3ce79 144 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 145 ble_error_t nRF51822::updateValue(uint8_t sIndex, uint8_t cIndex, uint8_t buffer[], uint16_t len)
ktownsend 0:ace2e8d3ce79 146 {
ktownsend 0:ace2e8d3ce79 147 /* Command ID = 0x0006, Payload = Service ID, Characteristic ID, Value */
ktownsend 0:ace2e8d3ce79 148 uart.printf("10 06 00 %02X %02X %02X", len + 2, cIndex, sIndex);
ktownsend 0:ace2e8d3ce79 149 for (uint16_t i = 0; i<len; i++)
ktownsend 0:ace2e8d3ce79 150 {
ktownsend 0:ace2e8d3ce79 151 uart.printf(" %02X", buffer[i]);
ktownsend 0:ace2e8d3ce79 152 }
ktownsend 0:ace2e8d3ce79 153 uart.printf("\r\n");
ktownsend 0:ace2e8d3ce79 154
ktownsend 0:ace2e8d3ce79 155 /* ToDo: Check response */
ktownsend 0:ace2e8d3ce79 156 wait(0.1);
ktownsend 0:ace2e8d3ce79 157
ktownsend 0:ace2e8d3ce79 158 return BLE_ERROR_NONE;
ktownsend 0:ace2e8d3ce79 159 }
ktownsend 0:ace2e8d3ce79 160
ktownsend 0:ace2e8d3ce79 161 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 162 /*!
ktownsend 0:ace2e8d3ce79 163 @brief Starts the BLE HW, initialising any services that were
ktownsend 0:ace2e8d3ce79 164 added before this function was called.
ktownsend 0:ace2e8d3ce79 165
ktownsend 0:ace2e8d3ce79 166 @note All services must be added before calling this function!
ktownsend 0:ace2e8d3ce79 167 */
ktownsend 0:ace2e8d3ce79 168 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 169 ble_error_t nRF51822::start(void)
ktownsend 0:ace2e8d3ce79 170 {
ktownsend 0:ace2e8d3ce79 171 /* Command ID = 0x0003, No payload */
ktownsend 0:ace2e8d3ce79 172 uart.printf("10 03 00 00\r\n");
ktownsend 0:ace2e8d3ce79 173
ktownsend 0:ace2e8d3ce79 174 /* ToDo: Check response */
ktownsend 0:ace2e8d3ce79 175 wait(0.5);
ktownsend 0:ace2e8d3ce79 176
ktownsend 0:ace2e8d3ce79 177 return BLE_ERROR_NONE;
ktownsend 0:ace2e8d3ce79 178 }
ktownsend 0:ace2e8d3ce79 179
ktownsend 0:ace2e8d3ce79 180 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 181 /*!
ktownsend 0:ace2e8d3ce79 182 @brief Stops the BLE HW and disconnects from any devices
ktownsend 0:ace2e8d3ce79 183 */
ktownsend 0:ace2e8d3ce79 184 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 185 ble_error_t nRF51822::stop(void)
ktownsend 0:ace2e8d3ce79 186 {
ktownsend 0:ace2e8d3ce79 187 /* Command ID = 0x0004, No payload */
ktownsend 0:ace2e8d3ce79 188 uart.printf("10 04 00 00\r\n");
ktownsend 0:ace2e8d3ce79 189
ktownsend 0:ace2e8d3ce79 190 /* ToDo: Check response */
ktownsend 0:ace2e8d3ce79 191 wait(0.1);
ktownsend 0:ace2e8d3ce79 192
ktownsend 0:ace2e8d3ce79 193 return BLE_ERROR_NONE;
ktownsend 0:ace2e8d3ce79 194 }
ktownsend 0:ace2e8d3ce79 195
ktownsend 0:ace2e8d3ce79 196 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 197 /*!
ktownsend 0:ace2e8d3ce79 198 @brief Resets the BLE HW, removing any existing services and
ktownsend 0:ace2e8d3ce79 199 characteristics
ktownsend 0:ace2e8d3ce79 200 */
ktownsend 0:ace2e8d3ce79 201 /**************************************************************************/
ktownsend 0:ace2e8d3ce79 202 ble_error_t nRF51822::reset(void)
ktownsend 0:ace2e8d3ce79 203 {
ktownsend 0:ace2e8d3ce79 204 /* Command ID = 0x0005, No payload */
ktownsend 0:ace2e8d3ce79 205 uart.printf("10 05 00 00\r\n");
ktownsend 0:ace2e8d3ce79 206
ktownsend 0:ace2e8d3ce79 207 /* Reset the service counter */
ktownsend 0:ace2e8d3ce79 208 serviceCount = 0;
ktownsend 0:ace2e8d3ce79 209
ktownsend 0:ace2e8d3ce79 210 /* Wait for the radio to come back up */
ktownsend 0:ace2e8d3ce79 211 wait(1);
ktownsend 0:ace2e8d3ce79 212
ktownsend 0:ace2e8d3ce79 213 return BLE_ERROR_NONE;
ktownsend 0:ace2e8d3ce79 214 }