Robert Pope / Mbed 2 deprecated simplewatch_initial_testing

Created a new repository to start development at https://developer.mbed.org/users/rjpope42/code/simpleWatch/

Dependencies:   BLE_API mbed nRF51822

Fork of Tiny_BLE_Simple by Al Williams

Created a new repository to start development at https://developer.mbed.org/users/rjpope42/code/simpleWatch/

main.cpp@5:f2e77e62e395, 2016-05-01 (annotated)

Committer:
rjpope42
Date:
Sun May 01 06:16:55 2016 +0000
Revision:
5:f2e77e62e395
Parent:
4:bb933be5a507 
Working!

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:26da608265f8 1
yihui 0:26da608265f8 2 #include "mbed.h"
yihui 2:b61ddbb8528e 3 #include "nrf51.h"
yihui 2:b61ddbb8528e 4 #include "nrf51_bitfields.h"
rjpope42 5:f2e77e62e395 5 #include <string>
yihui 0:26da608265f8 6
yihui 3:24e365bd1b97 7 #include "BLE.h"
yihui 0:26da608265f8 8 #include "DFUService.h"
yihui 0:26da608265f8 9 #include "UARTService.h"
yihui 0:26da608265f8 10
yihui 0:26da608265f8 11 #define LED_GREEN p21
yihui 0:26da608265f8 12 #define LED_RED p22
yihui 0:26da608265f8 13 #define LED_BLUE p23
yihui 0:26da608265f8 14 #define BUTTON_PIN p17
yihui 0:26da608265f8 15 #define BATTERY_PIN p1
yihui 0:26da608265f8 16
yihui 0:26da608265f8 17 #define UART_TX p9
yihui 0:26da608265f8 18 #define UART_RX p11
yihui 0:26da608265f8 19 #define UART_CTS p8
yihui 0:26da608265f8 20 #define UART_RTS p10
yihui 0:26da608265f8 21
yihui 0:26da608265f8 22 InterruptIn button(BUTTON_PIN);
yihui 0:26da608265f8 23 AnalogIn battery(BATTERY_PIN);
rjpope42 5:f2e77e62e395 24
yihui 0:26da608265f8 25
yihui 0:26da608265f8 26
yihui 2:b61ddbb8528e 27 int read_none_count = 0;
yihui 2:b61ddbb8528e 28
yihui 0:26da608265f8 29 BLEDevice ble;
yihui 0:26da608265f8 30 UARTService *uartServicePtr;
yihui 0:26da608265f8 31
yihui 0:26da608265f8 32 volatile bool bleIsConnected = false;
yihui 0:26da608265f8 33 volatile uint8_t tick_event = 0;
yihui 0:26da608265f8 34
yihui 0:26da608265f8 35
yihui 2:b61ddbb8528e 36
yihui 3:24e365bd1b97 37 void connectionCallback(const Gap::ConnectionCallbackParams_t *params)
yihui 0:26da608265f8 38 {
yihui 0:26da608265f8 39 bleIsConnected = true;
yihui 0:26da608265f8 40 }
yihui 0:26da608265f8 41
yihui 3:24e365bd1b97 42 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *cbParams)
yihui 0:26da608265f8 43 {
yihui 0:26da608265f8 44 ble.startAdvertising();
yihui 0:26da608265f8 45 bleIsConnected = false;
yihui 0:26da608265f8 46 }
yihui 0:26da608265f8 47
yihui 0:26da608265f8 48 void detect(void)
yihui 0:26da608265f8 49 {
rjpope42 5:f2e77e62e395 50 //LOG("Button pressed\n");
rjpope42 5:f2e77e62e395 51 //blue = !blue;
yihui 0:26da608265f8 52 }
yihui 0:26da608265f8 53
rjpope42 5:f2e77e62e395 54 void led_init(void)
rjpope42 5:f2e77e62e395 55 {
rjpope42 5:f2e77e62e395 56
rjpope42 5:f2e77e62e395 57 //set LED pins to digital output
rjpope42 5:f2e77e62e395 58 NRF_GPIO->PIN_CNF[LED_BLUE] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
rjpope42 5:f2e77e62e395 59 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
rjpope42 5:f2e77e62e395 60 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
rjpope42 5:f2e77e62e395 61 | (GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos)
rjpope42 5:f2e77e62e395 62 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
yihui 0:26da608265f8 63
rjpope42 5:f2e77e62e395 64 NRF_GPIO->PIN_CNF[LED_GREEN] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
rjpope42 5:f2e77e62e395 65 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
rjpope42 5:f2e77e62e395 66 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
rjpope42 5:f2e77e62e395 67 | (GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos)
rjpope42 5:f2e77e62e395 68 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
rjpope42 5:f2e77e62e395 69
rjpope42 5:f2e77e62e395 70 NRF_GPIO->PIN_CNF[LED_RED] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
rjpope42 5:f2e77e62e395 71 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
rjpope42 5:f2e77e62e395 72 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
rjpope42 5:f2e77e62e395 73 | (GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos)
rjpope42 5:f2e77e62e395 74 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
rjpope42 5:f2e77e62e395 75 // NRF_GPIO - #define NRF_GPIO ((NRF_GPIO_Type *) NRF_GPIO_BASE)
rjpope42 5:f2e77e62e395 76 // NRF_GPIO_Type - struct containing possible settings (DIR, INPUT, PULL, DRIVE, SENSE, as well as PIN_CNF[] (configuration array for all 32 outputs)
rjpope42 5:f2e77e62e395 77 // NRF_GPIO_BASE - #define NRF_GPIO_BASE 0x50000000UL //base register address for GPIO settings
rjpope42 5:f2e77e62e395 78 // -> just a way of accessing PIN_CNF[pin_we_want_to_mess_with], object oriented programming stuff
rjpope42 5:f2e77e62e395 79 // GPIO_PIN_CNF_SENSE_Disabled //the appropriate binary value to set sense as disabled
rjpope42 5:f2e77e62e395 80 // << //bit shift
rjpope42 5:f2e77e62e395 81 // GPIO_PIN_CNF_SENSE_pos //position that the value of GPIO_PIN_CNF_SENSE_Disabled should be placed at
rjpope42 5:f2e77e62e395 82 // | //OR all of these values together to set the register
rjpope42 5:f2e77e62e395 83 }
rjpope42 5:f2e77e62e395 84
yihui 0:26da608265f8 85
yihui 0:26da608265f8 86 int main(void)
yihui 0:26da608265f8 87 {
rjpope42 5:f2e77e62e395 88
rjpope42 5:f2e77e62e395 89 led_init();
yihui 2:b61ddbb8528e 90
rjpope42 5:f2e77e62e395 91 //Turn all LEDs off
rjpope42 5:f2e77e62e395 92 NRF_GPIO->OUTSET = (1UL << LED_BLUE); //remember that writing zeros with outset and outclear has no effect
rjpope42 5:f2e77e62e395 93 NRF_GPIO->OUTSET = (1UL << LED_RED);
rjpope42 5:f2e77e62e395 94 NRF_GPIO->OUTSET = (1UL << LED_GREEN);
rjpope42 5:f2e77e62e395 95
yihui 2:b61ddbb8528e 96 wait(1);
yihui 2:b61ddbb8528e 97
yihui 2:b61ddbb8528e 98 button.fall(detect);
yihui 2:b61ddbb8528e 99
rjpope42 5:f2e77e62e395 100 //Initialising the nRF51822
yihui 2:b61ddbb8528e 101 ble.init();
yihui 3:24e365bd1b97 102 ble.gap().onDisconnection(disconnectionCallback);
yihui 3:24e365bd1b97 103 ble.gap().onConnection(connectionCallback);
yihui 2:b61ddbb8528e 104
yihui 2:b61ddbb8528e 105
yihui 2:b61ddbb8528e 106 /* setup advertising */
yihui 2:b61ddbb8528e 107 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
yihui 2:b61ddbb8528e 108 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
yihui 2:b61ddbb8528e 109 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
rjpope42 5:f2e77e62e395 110 (const uint8_t *)"PWMtest", sizeof("PWMtest"));
yihui 2:b61ddbb8528e 111 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
yihui 2:b61ddbb8528e 112 (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
yihui 2:b61ddbb8528e 113 DFUService dfu(ble);
yihui 2:b61ddbb8528e 114 UARTService uartService(ble);
yihui 2:b61ddbb8528e 115 uartServicePtr = &uartService;
yihui 2:b61ddbb8528e 116 //uartService.retargetStdout();
yihui 2:b61ddbb8528e 117
yihui 2:b61ddbb8528e 118 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
yihui 3:24e365bd1b97 119 ble.gap().startAdvertising();
rjpope42 5:f2e77e62e395 120 char str[8];
rjpope42 5:f2e77e62e395 121 str[5]='\r';
rjpope42 5:f2e77e62e395 122 str[6]='\n';
rjpope42 5:f2e77e62e395 123 str[7]='\0';
rjpope42 5:f2e77e62e395 124
rjpope42 5:f2e77e62e395 125 //int rgb_res = 8; //RGB resolution, TODO define this as a constant later
rjpope42 5:f2e77e62e395 126 int vals[3] = {0};
rjpope42 5:f2e77e62e395 127 bool pwmvals[3] = {0};
rjpope42 5:f2e77e62e395 128
yihui 2:b61ddbb8528e 129
yihui 0:26da608265f8 130 while (true) {
wd5gnr 4:bb933be5a507 131 ble.waitForEvent();
rjpope42 5:f2e77e62e395 132 str[0]=uartService._getc();//set
rjpope42 5:f2e77e62e395 133 if (str[0]=='S')
rjpope42 5:f2e77e62e395 134 {
rjpope42 5:f2e77e62e395 135
rjpope42 5:f2e77e62e395 136 str[1]=uartService._getc();//R
rjpope42 5:f2e77e62e395 137 str[2]=uartService._getc();//G
rjpope42 5:f2e77e62e395 138 str[3]=uartService._getc();//B
rjpope42 5:f2e77e62e395 139 str[4]=uartService._getc();
rjpope42 5:f2e77e62e395 140
rjpope42 5:f2e77e62e395 141 vals[0] = str[1]-0x30;//convert from char to int
rjpope42 5:f2e77e62e395 142 vals[1] = str[2]-0x30;
rjpope42 5:f2e77e62e395 143 vals[2] = str[3]-0x30;
rjpope42 5:f2e77e62e395 144 uartService.writeString(str);
rjpope42 5:f2e77e62e395 145
rjpope42 5:f2e77e62e395 146 str[0] = 0;
rjpope42 5:f2e77e62e395 147 }
wd5gnr 4:bb933be5a507 148
rjpope42 5:f2e77e62e395 149 for(uint32_t j = 100000; j>0; j--)//display color for a couple seconds
rjpope42 5:f2e77e62e395 150 {
rjpope42 5:f2e77e62e395 151 for(int i = 8; i>0; i--)//
rjpope42 5:f2e77e62e395 152 {
rjpope42 5:f2e77e62e395 153 pwmvals[0] = (i - vals[0] == 0);//control brightness by turning LED on after x iterations
rjpope42 5:f2e77e62e395 154 pwmvals[1] = (i - vals[1] == 0);//could compare directly to str and save an array
rjpope42 5:f2e77e62e395 155 pwmvals[2] = (i - vals[2] == 0);
rjpope42 5:f2e77e62e395 156 NRF_GPIO->OUTCLR = (pwmvals[0] << LED_RED)|(pwmvals[1] << LED_GREEN)|(pwmvals[2] << LED_BLUE);
rjpope42 5:f2e77e62e395 157
rjpope42 5:f2e77e62e395 158 }
rjpope42 5:f2e77e62e395 159 NRF_GPIO->OUTSET = (0x7UL << LED_GREEN);//turn all 3 off
yihui 0:26da608265f8 160 }
yihui 0:26da608265f8 161 }
rjpope42 5:f2e77e62e395 162 }
yihui 0:26da608265f8 163
yihui 0:26da608265f8 164