Aidan Jabbarzadeh / Mbed 2 deprecated Transmitter

ble transmitter

Dependencies:   mbed BLE_API nRF51822

transmitter_main.cpp@8:2d82653c8ffd, 2019-04-17 (annotated)

Committer:
jzabins2
Date:
Wed Apr 17 21:49:53 2019 +0000
Revision:
8:2d82653c8ffd
Parent:
7:1e93ff891703
Child:
9:aa9d34bbb46c
Trying to get transmitter working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aidanjabb 0:37b6e6dc1a2f 1 #include "mbed.h"
aidanjabb 0:37b6e6dc1a2f 2 #include "ble/BLE.h"
jzabins2 2:f8dfdded83bf 3
khyein8154 5:c7bbaa34373a 4 Serial pc(USBTX, USBRX);
khyein8154 5:c7bbaa34373a 5
aidanjabb 0:37b6e6dc1a2f 6 #define LED_RED p22
jzabins2 2:f8dfdded83bf 7 #define LED_GREEN p21
jzabins2 2:f8dfdded83bf 8 #define LED_BLUE p23
jzabins2 2:f8dfdded83bf 9 #define BUTTON_PIN p17
jzabins2 2:f8dfdded83bf 10 #define BATTERY_PIN p1
jzabins2 2:f8dfdded83bf 11
aidanjabb 0:37b6e6dc1a2f 12 DigitalOut led1(p21);
aidanjabb 0:37b6e6dc1a2f 13
jzabins2 2:f8dfdded83bf 14 struct Packet {
jzabins2 3:76b8337374e7 15 uint32_t seqNum;
jzabins2 4:c3123e9e7d39 16
jzabins2 4:c3123e9e7d39 17 Packet() : seqNum(0) {}
jzabins2 2:f8dfdded83bf 18 };
jzabins2 8:2d82653c8ffd 19 uint8_t seqNum2 = 8;
jzabins2 2:f8dfdded83bf 20
jzabins2 3:76b8337374e7 21 BLE ble;
jzabins2 8:2d82653c8ffd 22 Packet p;
jzabins2 3:76b8337374e7 23 const static char DEVICE_NAME[] = "JOEY";
aidanjabb 0:37b6e6dc1a2f 24 static volatile bool triggerSensorPolling = false;
jzabins2 3:76b8337374e7 25
aidanjabb 0:37b6e6dc1a2f 26 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
aidanjabb 0:37b6e6dc1a2f 27 {
aidanjabb 0:37b6e6dc1a2f 28 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); // restart advertising
aidanjabb 0:37b6e6dc1a2f 29 }
jzabins2 3:76b8337374e7 30
jzabins2 3:76b8337374e7 31 void updatePayload(void)
jzabins2 3:76b8337374e7 32 {
jzabins2 8:2d82653c8ffd 33 // ble.gap().updateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&p, sizeof(p));
jzabins2 3:76b8337374e7 34 (p.seqNum)++;
khyein8154 7:1e93ff891703 35 pc.printf("seq_num: %d\n", p.seqNum);
jzabins2 3:76b8337374e7 36 }
jzabins2 3:76b8337374e7 37
aidanjabb 0:37b6e6dc1a2f 38 void periodicCallback(void)
aidanjabb 0:37b6e6dc1a2f 39 {
aidanjabb 0:37b6e6dc1a2f 40 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
jzabins2 3:76b8337374e7 41 updatePayload();
jzabins2 3:76b8337374e7 42
aidanjabb 0:37b6e6dc1a2f 43 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
aidanjabb 0:37b6e6dc1a2f 44 * heavy-weight sensor polling from the main thread. */
aidanjabb 0:37b6e6dc1a2f 45 triggerSensorPolling = true;
aidanjabb 0:37b6e6dc1a2f 46 }
jzabins2 3:76b8337374e7 47
aidanjabb 0:37b6e6dc1a2f 48 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
aidanjabb 0:37b6e6dc1a2f 49 {
jzabins2 3:76b8337374e7 50 BLE &localble = params->ble;
aidanjabb 0:37b6e6dc1a2f 51 ble_error_t error = params->error;
jzabins2 3:76b8337374e7 52
aidanjabb 0:37b6e6dc1a2f 53 if (error != BLE_ERROR_NONE) {
aidanjabb 0:37b6e6dc1a2f 54 return;
aidanjabb 0:37b6e6dc1a2f 55 }
jzabins2 3:76b8337374e7 56
jzabins2 3:76b8337374e7 57 localble.gap().onDisconnection(disconnectionCallback);
jzabins2 3:76b8337374e7 58
jzabins2 8:2d82653c8ffd 59 // localble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
jzabins2 8:2d82653c8ffd 60 // localble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&p, sizeof(p));
jzabins2 8:2d82653c8ffd 61 localble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&seqNum2, sizeof(seqNum2));
jzabins2 8:2d82653c8ffd 62
jzabins2 3:76b8337374e7 63
jzabins2 3:76b8337374e7 64 localble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
jzabins2 3:76b8337374e7 65 localble.gap().setAdvertisingInterval(1000); /* 1000ms */
jzabins2 3:76b8337374e7 66 localble.gap().startAdvertising();
aidanjabb 0:37b6e6dc1a2f 67 }
jzabins2 3:76b8337374e7 68
aidanjabb 0:37b6e6dc1a2f 69 int main(void)
aidanjabb 0:37b6e6dc1a2f 70 {
aidanjabb 0:37b6e6dc1a2f 71 led1 = 1;
jzabins2 3:76b8337374e7 72
aidanjabb 0:37b6e6dc1a2f 73 Ticker ticker;
jzabins2 3:76b8337374e7 74 ticker.attach(periodicCallback, 1);
jzabins2 3:76b8337374e7 75
aidanjabb 0:37b6e6dc1a2f 76 ble.init(bleInitComplete);
aidanjabb 0:37b6e6dc1a2f 77
aidanjabb 0:37b6e6dc1a2f 78 /* SpinWait for initialization to complete. This is necessary because the
aidanjabb 0:37b6e6dc1a2f 79 * BLE object is used in the main loop below. */
aidanjabb 0:37b6e6dc1a2f 80 while (ble.hasInitialized() == false) { /* spin loop */ }
aidanjabb 0:37b6e6dc1a2f 81
aidanjabb 0:37b6e6dc1a2f 82 while (1) {
aidanjabb 0:37b6e6dc1a2f 83 // check for trigger from periodicCallback()
aidanjabb 0:37b6e6dc1a2f 84 if (triggerSensorPolling && ble.getGapState().connected) {
aidanjabb 0:37b6e6dc1a2f 85 triggerSensorPolling = false;
aidanjabb 0:37b6e6dc1a2f 86 } else {
aidanjabb 0:37b6e6dc1a2f 87 ble.waitForEvent(); // low power wait for event
aidanjabb 0:37b6e6dc1a2f 88 }
aidanjabb 0:37b6e6dc1a2f 89 }
aidanjabb 0:37b6e6dc1a2f 90 }