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Dependencies:   mbed

main.cpp@3:d072d2d7f043, 2015-11-05 (annotated)

Committer:
true
Date:
Thu Nov 05 04:54:36 2015 +0000
Revision:
3:d072d2d7f043
Parent:
2:f12658f35bbd 
- Updated pin offsets as PH_0 isn't working (likely AF but not good practice to use both oscillator pins anyway); - Adding mapping.txt showing human-readable input/output pairs

Who changed what in which revision?

UserRevisionLine numberNew contents of line
true 0:d4c9af9bd744 1 #include "mbed.h"
true 0:d4c9af9bd744 2
true 0:d4c9af9bd744 3 //------------------------------------
true 0:d4c9af9bd744 4 // 9600 baud, 8-bit data, no parity
true 0:d4c9af9bd744 5 //------------------------------------
true 0:d4c9af9bd744 6
true 0:d4c9af9bd744 7 #define BYTEBINPATTERN "%d%d%d%d%d%d%d%d"
true 0:d4c9af9bd744 8 #define BYTETOBIN(byte) \
true 0:d4c9af9bd744 9 (byte & 0x80 ? 1 : 0), \
true 0:d4c9af9bd744 10 (byte & 0x40 ? 1 : 0), \
true 0:d4c9af9bd744 11 (byte & 0x20 ? 1 : 0), \
true 0:d4c9af9bd744 12 (byte & 0x10 ? 1 : 0), \
true 0:d4c9af9bd744 13 (byte & 0x08 ? 1 : 0), \
true 0:d4c9af9bd744 14 (byte & 0x04 ? 1 : 0), \
true 0:d4c9af9bd744 15 (byte & 0x02 ? 1 : 0), \
true 0:d4c9af9bd744 16 (byte & 0x01 ? 1 : 0)
true 0:d4c9af9bd744 17
true 0:d4c9af9bd744 18 Serial ser(SERIAL_TX, SERIAL_RX);
true 0:d4c9af9bd744 19
true 0:d4c9af9bd744 20 DigitalIn in[16] = {
true 2:f12658f35bbd 21 PB_12, PA_11, PA_12, PC_5,
true 2:f12658f35bbd 22 PC_6, PC_8, PC_9, PB_8,
true 2:f12658f35bbd 23 PB_9, PA_6, PA_7, PB_6,
true 2:f12658f35bbd 24 PC_7, PA_9, PA_8, PB_10
true 0:d4c9af9bd744 25 };
true 0:d4c9af9bd744 26
true 0:d4c9af9bd744 27 DigitalInOut out[16] = {
true 0:d4c9af9bd744 28 PD_2, PC_11, PC_10, PC_12,
true 3:d072d2d7f043 29 PH_1, PC_2, PC_3, PC_0,
true 3:d072d2d7f043 30 PC_1, PB_0, PA_4, PA_1,
true 3:d072d2d7f043 31 PA_0, PB_3, PB_5, PB_4
true 0:d4c9af9bd744 32 };
true 0:d4c9af9bd744 33
true 0:d4c9af9bd744 34 DigitalOut userled(LED1);
true 0:d4c9af9bd744 35
true 0:d4c9af9bd744 36 //------------------------------------
true 0:d4c9af9bd744 37
true 0:d4c9af9bd744 38 void input_state_print()
true 0:d4c9af9bd744 39 {
true 0:d4c9af9bd744 40 ser.printf("i");
true 0:d4c9af9bd744 41
true 0:d4c9af9bd744 42 for (int i = 0; i < 16; i++) {
true 0:d4c9af9bd744 43 ser.printf("%c", in[i] ? 0x31 : 0x30);
true 0:d4c9af9bd744 44 }
true 0:d4c9af9bd744 45
true 0:d4c9af9bd744 46 ser.printf("\r\n");
true 0:d4c9af9bd744 47 }
true 0:d4c9af9bd744 48
true 0:d4c9af9bd744 49 void setup(void)
true 0:d4c9af9bd744 50 {
true 0:d4c9af9bd744 51 RCC_OscInitTypeDef RCC_OscInitStruct;
true 0:d4c9af9bd744 52
true 3:d072d2d7f043 53 // use internal osc - we don't need the external one for any reason
true 3:d072d2d7f043 54 // and we want to also use an osc pin
true 0:d4c9af9bd744 55 HAL_RCC_DeInit();
true 0:d4c9af9bd744 56
true 0:d4c9af9bd744 57 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
true 0:d4c9af9bd744 58 RCC_OscInitStruct.HSIState = RCC_HSI_ON;
true 0:d4c9af9bd744 59 RCC_OscInitStruct.HSICalibrationValue = 16;
true 0:d4c9af9bd744 60 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
true 0:d4c9af9bd744 61 HAL_RCC_OscConfig(&RCC_OscInitStruct);
true 0:d4c9af9bd744 62
true 0:d4c9af9bd744 63 // HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
true 0:d4c9af9bd744 64
true 0:d4c9af9bd744 65 HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
true 0:d4c9af9bd744 66
true 0:d4c9af9bd744 67 SystemCoreClockUpdate();
true 0:d4c9af9bd744 68 };
true 0:d4c9af9bd744 69
true 0:d4c9af9bd744 70 int main()
true 0:d4c9af9bd744 71 {
true 0:d4c9af9bd744 72 setup();
true 0:d4c9af9bd744 73
true 0:d4c9af9bd744 74 // reinitialize the serial port since the clock changed
true 0:d4c9af9bd744 75 Serial ser(SERIAL_TX, SERIAL_RX);
true 0:d4c9af9bd744 76 ser.baud(9600);
true 0:d4c9af9bd744 77
true 0:d4c9af9bd744 78 // initialize the input ticker
true 0:d4c9af9bd744 79 Ticker input_autoprint;
true 0:d4c9af9bd744 80
true 0:d4c9af9bd744 81 ser.printf("\r\ntrue Nucleo IOReg for dwangoAC v0.1\r\n");
true 0:d4c9af9bd744 82 ser.printf("Running at %d Hz\r\n", SystemCoreClock);
true 0:d4c9af9bd744 83 ser.printf("Use command \"i\" to print input pin state\r\n");
true 0:d4c9af9bd744 84 ser.printf("Use command \"oXX\" to set outputs where XX is raw 16bit value\r\n");
true 0:d4c9af9bd744 85 ser.printf(" 1 = short pin to GND, 0 = HiZ pin\r\n");
true 0:d4c9af9bd744 86
true 0:d4c9af9bd744 87 while (1) {
true 0:d4c9af9bd744 88 if (ser.readable()) {
true 0:d4c9af9bd744 89 switch (ser.getc()) {
true 0:d4c9af9bd744 90 case 'i': {
true 0:d4c9af9bd744 91 input_state_print();
true 0:d4c9af9bd744 92 break;
true 0:d4c9af9bd744 93 }
true 0:d4c9af9bd744 94 case 'I': { // automatically send input from 0.1 to 9.9 seconds
true 0:d4c9af9bd744 95 uint8_t rate0 = ser.getc();
true 0:d4c9af9bd744 96 uint8_t rate1 = ser.getc();
true 0:d4c9af9bd744 97
true 0:d4c9af9bd744 98 if (rate0 >= 0x30 && rate0 <= 0x39) {
true 0:d4c9af9bd744 99 rate0 -= 0x30;
true 0:d4c9af9bd744 100 if (rate1 >= 0x30 && rate1 <= 0x39) {
true 0:d4c9af9bd744 101 rate1 -= 0x30;
true 0:d4c9af9bd744 102 uint8_t rate = (rate0 * 10) + rate1;
true 0:d4c9af9bd744 103
true 0:d4c9af9bd744 104 if (rate == 0) {
true 0:d4c9af9bd744 105 input_autoprint.detach();
true 0:d4c9af9bd744 106 } else {
true 0:d4c9af9bd744 107 input_autoprint.attach(&input_state_print, 0.1 * rate);
true 0:d4c9af9bd744 108 }
true 0:d4c9af9bd744 109 }
true 0:d4c9af9bd744 110 }
true 0:d4c9af9bd744 111
true 0:d4c9af9bd744 112 break;
true 0:d4c9af9bd744 113 }
true 0:d4c9af9bd744 114
true 0:d4c9af9bd744 115 case 'o': {
true 0:d4c9af9bd744 116 uint8_t bh = ser.getc();
true 0:d4c9af9bd744 117 uint8_t bl = ser.getc();
true 0:d4c9af9bd744 118
true 0:d4c9af9bd744 119 // set light confirming command receipt
true 0:d4c9af9bd744 120 userled = 1;
true 0:d4c9af9bd744 121
true 0:d4c9af9bd744 122 // we can give feedback to our program what is being set
true 0:d4c9af9bd744 123 printf("o"BYTEBINPATTERN BYTEBINPATTERN"\r\n", BYTETOBIN(bh), BYTETOBIN(bl));
true 0:d4c9af9bd744 124
true 0:d4c9af9bd744 125 // actually set pins = 1 sets active low, 0 sets hiz
true 0:d4c9af9bd744 126 uint16_t bits = bh << 8 | bl;
true 0:d4c9af9bd744 127
true 0:d4c9af9bd744 128 for (int i = 0; i < 16; i++) {
true 0:d4c9af9bd744 129 if (bits & (1 << i)) {
true 0:d4c9af9bd744 130 // active low output
true 0:d4c9af9bd744 131 out[i] = 0;
true 0:d4c9af9bd744 132 out[i].output();
true 0:d4c9af9bd744 133 } else {
true 0:d4c9af9bd744 134 // hi-z input
true 0:d4c9af9bd744 135 out[i].input();
true 0:d4c9af9bd744 136 }
true 0:d4c9af9bd744 137 }
true 0:d4c9af9bd744 138
true 0:d4c9af9bd744 139 // wait a moment, unset light
true 0:d4c9af9bd744 140 wait(0.2);
true 0:d4c9af9bd744 141 userled = 0;
true 0:d4c9af9bd744 142 break;
true 0:d4c9af9bd744 143 }
true 0:d4c9af9bd744 144 }
true 0:d4c9af9bd744 145 }
true 0:d4c9af9bd744 146 }
true 0:d4c9af9bd744 147 }