main.cpp

00001 /*
00002  * Mbed Application program / Akizuki 7-segment LED driver [OSL10564-74HC595-x]
00003  *      AKIZUKI AE-7SEG-BOARD-KIT-BLUE
00004  *      http://akizukidenshi.com/catalog/g/gK-10344/
00005  *
00006  * Copyright (c) 2018 Kenji Arai / JH1PJL
00007  *  http://www.page.sannet.ne.jp/kenjia/index.html
00008  *  http://mbed.org/users/kenjiArai/
00009  *      Created:    January    7th, 2018
00010  *      Revised:    January   22nd, 2018
00011  */
00012 
00013 //  Include --------------------------------------------------------------------
00014 #include "mbed.h"
00015 #include "7segLed_HC595.h"
00016 
00017 //  Definition -----------------------------------------------------------------
00018 #define NUM_OF_DIGIT    6
00019 
00020 #define KEYIN_THEN_EXIT_WHILE() {if(exit_while_loop_when_keyinput()){ break;}}
00021 
00022 //  Constructor ----------------------------------------------------------------
00023 Serial      pc(USBTX, USBRX);
00024 #if defined(TARGET_NUCLEO_F446RE) || defined(TARGET_NUCLEO_F411RE)\
00025  || defined(TARGET_NUCLEO_F401RE) || defined(TARGET_NUCLEO_L152RE)\
00026  || defined(TARGET_NUCLEO_L073RZ) || defined(TARGET_NUCLEO_L053R8)\
00027  || defined(TARGET_NUCLEO_L476RG)
00028 //                SPI MOSI,SCLK,any port, PWM, number of digit
00029 SevenSegLed led_7segs(D4,  D3,  D5,       D6,  NUM_OF_DIGIT);
00030 #elif defined(TARGET_NUCLEO_F334R8)
00031 //                SPI MOSI,SCLK,any port, PWM, number of digit
00032 SevenSegLed led_7segs(D4,  D3,  D5,       D7,  NUM_OF_DIGIT);
00033 #elif defined(TARGET_NUCLEO_F303K8)
00034 //                SPI MOSI,SCLK,any port, PWM, number of digit
00035 SevenSegLed led_7segs(A6,  A4,  A5,       A3,  NUM_OF_DIGIT);
00036 #elif TARGET_Freescale
00037 //                SPI MOSI,SCLK,any port, PWM, number of digit
00038 SevenSegLed led_7segs(D11, D13, D12,     D10,  NUM_OF_DIGIT);
00039 #else
00040 #error    "Please set your own SevenSegLed constractor!"
00041 #endif
00042 DigitalOut  myled(LED1);
00043 AnalogIn    vol(A0);
00044 
00045 //  RAM ------------------------------------------------------------------------
00046 time_t seconds;
00047 
00048 //  ROM / Constant data --------------------------------------------------------
00049 
00050 //  Function prototypes --------------------------------------------------------
00051 bool exit_while_loop_when_keyinput(void);
00052 
00053 //------------------------------------------------------------------------------
00054 //  Control Program
00055 //------------------------------------------------------------------------------
00056 int main()
00057 {
00058     //--------------------------------------------------------------------------
00059     pc.printf("Hit any key to go next step\r\n");
00060     pc.printf("Step1\r\n");
00061     {
00062         uint32_t max = 9;
00063         for (uint32_t i = 1; i < NUM_OF_DIGIT; i++) {
00064             max = max * 10 + 9;
00065         }
00066         pc.printf("max = %d\r\n", max);
00067         led_7segs.zero_suppress(true);
00068         int32_t count = 0;
00069         while(true) {
00070             led_7segs = count++;
00071             if (count > max) {
00072                 count = 0;
00073             }
00074             float wait_time = 5.0f / (float)(count + 1);
00075             if (wait_time > 0.01f) {
00076                 wait(wait_time);
00077             }
00078             KEYIN_THEN_EXIT_WHILE();
00079         }
00080     }
00081     //--------------------------------------------------------------------------
00082     pc.printf("Step2\r\n");
00083     {
00084         char buf[16];
00085 
00086         led_7segs.zero_suppress(false);
00087         float led_bright = 0.5f;
00088         while(true) {
00089             time_t seconds = time(NULL);
00090             strftime(buf, 10, "%H.%M.%S", localtime(&seconds));
00091             //strftime(buf, 10, "1.2.3.4.%S", localtime(&seconds));
00092             pc.printf("%s\r\n", buf);
00093             led_7segs.put_ascii(buf);
00094             led_7segs.brightness(led_bright);
00095             if (led_bright == 0.5f) {
00096                 led_bright = 1.0f;
00097             } else {
00098                 led_bright = 0.5f;
00099             }
00100             wait(1.0f);
00101             KEYIN_THEN_EXIT_WHILE();
00102         }
00103     }
00104     //--------------------------------------------------------------------------
00105     pc.printf("Step3\r\n");
00106     {
00107         uint8_t seg_bf[6] =  {
00108             0b00000001     // LSB
00109             ,0b00000010
00110             ,0b10000100     // +Dot
00111             ,0b00001000
00112             ,0b00010000
00113             ,0b00100000     // MSB
00114         };
00115 
00116         led_7segs.zero_suppress(true);
00117         led_7segs.brightness(1.0f);
00118         int32_t count = 0;
00119         while(true) {
00120             count++;
00121             if (count & 0x01) {
00122                 led_7segs.put_raw(seg_bf);
00123             } else {
00124                 led_7segs.put_ascii("12.34567");
00125             }
00126             wait(1.0f);
00127             KEYIN_THEN_EXIT_WHILE();
00128         }
00129     }
00130     //--------------------------------------------------------------------------
00131     pc.printf("Step4\r\n");
00132     {
00133         char buf[16];
00134 
00135         for (uint32_t i = 0; i < sizeof(buf); i++) {
00136             buf[i] = ' ';
00137         }
00138         bool exit_req = false;
00139         while(true) {
00140             for (uint32_t n = ' '; n < '~'; n++) {
00141                 for (uint32_t i = 0 ; i < sizeof(buf) - 1; i++) {
00142                     buf[i] = buf[i + 1];
00143                 }
00144                 buf[NUM_OF_DIGIT - 1] = n;
00145                 pc.putc(n);
00146                 led_7segs.put_strings(buf);
00147                 led_7segs.brightness(vol);
00148                 wait(1.0f);
00149                 if(exit_while_loop_when_keyinput()) {
00150                     exit_req = true;
00151                     break;
00152                 }
00153             }
00154             if (exit_req == true) {
00155                 break;
00156             }
00157         }
00158         for (uint32_t i = 0; i < sizeof(buf); i++) {
00159             buf[i] = ' ';
00160         }
00161         led_7segs.put_strings(buf);
00162         pc.printf("\r\n");
00163     }
00164     //--------------------------------------------------------------------------
00165     pc.printf("Step5\r\n");
00166     {
00167         char buf[16];
00168 
00169         pc.printf("hit [Esc] to exit the function\r\n");
00170         for (uint32_t i = 0; i < sizeof(buf); i++) {
00171             buf[i] = ' ';
00172         }
00173         led_7segs.put_strings(buf);
00174         while(true) {
00175             while(pc.readable() == 0) {
00176                 ;
00177             }
00178             char c = pc.getc();
00179             pc.putc(c);
00180             if (c == 0x1b) {    // [Esc]
00181                 break;
00182             }
00183             for (uint32_t i = 0 ; i < sizeof(buf) - 1; i++) {
00184                 buf[i] = buf[i + 1];
00185             }
00186             buf[NUM_OF_DIGIT - 1] = c;
00187             led_7segs.put_strings(buf);
00188         }
00189         for (uint32_t i = 0; i < sizeof(buf); i++) {
00190             buf[i] = ' ';
00191         }
00192         led_7segs.put_strings(buf);
00193         pc.printf("\r\n");
00194     }
00195     //--------------------------------------------------------------------------
00196     pc.printf("Step_END\r\n");
00197     {
00198         while(true) {
00199             pc.printf("Finished -> Reset then start again\r\n");
00200             wait(10.0f);
00201         }
00202     }
00203 }
00204 
00205 bool exit_while_loop_when_keyinput(void)
00206 {
00207     if (pc.readable()) {
00208         while(pc.readable()) {
00209             char c = pc.getc();
00210         }
00211         return true;
00212     } else {
00213         return false;
00214     }
00215 }