main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 #include "USBKeyboard.h"
00004 
00005 // Hardware serial port over DAPLink
00006 Serial daplink(P2_1, P2_0);
00007 
00008 DigitalOut rLED(LED1, LED_ON);
00009 DigitalOut gLED(LED2, LED_OFF);
00010 DigitalOut bLED(LED3, LED_OFF);
00011 DigitalIn button(P2_7, PullUp);
00012 DigitalOut en3V3(P3_6, 0);
00013 DigitalOut enIOH(P2_2, 0);
00014 DigitalOut selSWD(P2_3, 0);
00015 AnalogIn dipIOH(AIN_4);
00016 AnalogIn swdIOH(AIN_5);
00017 AnalogIn vddbIn(AIN_6);
00018 AnalogIn vdd18In(AIN_7);
00019 AnalogIn vdd12In(AIN_8);
00020 AnalogIn vrtcIn(AIN_9);
00021 
00022 USBKeyboard keyboard;
00023 
00024 // Function to report failure
00025 void testFailed()
00026 {
00027     daplink.printf("\r\n! Test Failed !\r\n");
00028 //    rLED = LED_ON;
00029 //    gLED = LED_OFF;
00030 //    bLED = LED_OFF;
00031     while(1) {
00032         Thread::wait(500);
00033         rLED = !rLED;
00034     }
00035 }
00036 
00037 // main() runs in its own thread in the OS
00038 // (note the calls to Thread::wait below for delays)
00039 int main()
00040 {
00041     float aIn;
00042     int ledCnt = 0;
00043 
00044     daplink.printf("Checking Supplies\r\n");
00045     aIn = 2.4f * vdd12In;
00046     daplink.printf("vdd12 = %f\r\n", aIn);
00047     if ((aIn < 1.0f) || (aIn > 1.4f)) {
00048         testFailed();
00049     }
00050     aIn = 2.4f * vdd18In;
00051     daplink.printf("vdd18 = %f\r\n", aIn);
00052     if ((aIn < 1.6f) || (aIn > 2.0f)) {
00053         testFailed();
00054     }
00055     aIn = 4.8f * vddbIn;
00056     daplink.printf("vddb = %f\r\n", aIn);
00057     if ((aIn < 3.0f) || (aIn > 3.6f)) {
00058         testFailed();
00059     }
00060     aIn = 2.4f * vrtcIn;
00061     daplink.printf("vrtc = %f\r\n", aIn);
00062     if ((aIn < 1.6f) || (aIn > 2.0f)) {
00063         testFailed();
00064     }
00065 
00066     en3V3 = 1;
00067     bLED = LED_ON;
00068     Thread::wait(100);
00069 
00070     daplink.printf("Checking Switches\r\n");
00071     aIn = 6.0f * dipIOH;
00072     Thread::wait(100);
00073     aIn = 6.0f * dipIOH;
00074     daplink.printf("dipIOH(open) = %f\r\n", aIn);
00075     if (aIn > 0.1f) {
00076         testFailed();
00077     }
00078     aIn = 6.0f * swdIOH;
00079     Thread::wait(100);
00080     aIn = 6.0f * swdIOH;
00081     daplink.printf("swdIOH(open) = %f\r\n", aIn);
00082     if (aIn > 0.1f) {
00083         testFailed();
00084     }
00085 
00086     enIOH = 1;
00087     rLED = LED_OFF;
00088     Thread::wait(100);
00089 
00090     aIn = 6.0f * dipIOH;
00091     Thread::wait(100);
00092     aIn = 6.0f * dipIOH;
00093     daplink.printf("dipIOH(closed) = %f\r\n", aIn);
00094 //    aIn = 6.0f * swdIOH;
00095 //    daplink.printf("swdIOH(closed) = %f\r\n", aIn);
00096     if ((aIn < 3.0f) || (aIn > 3.6f)) {
00097 //        testFailed();
00098     }
00099     
00100     selSWD = 1;
00101     gLED = LED_ON;
00102     Thread::wait(100);
00103 
00104     aIn = 6.0f * swdIOH;
00105     Thread::wait(100);
00106     aIn = 6.0f * swdIOH;
00107     daplink.printf("swdIOH(closed) = %f\r\n", aIn);
00108 //    aIn = 6.0f * dipIOH;
00109 //    daplink.printf("dipIOH(closed) = %f\r\n", aIn);
00110     if ((aIn < 3.0f) || (aIn > 3.6f)) {
00111         testFailed();
00112     }
00113 
00114     bLED = LED_OFF;
00115     Thread::wait(250);
00116 
00117     daplink.printf("Self Test Passed\r\n");
00118     rLED = LED_ON;
00119     gLED = LED_ON;
00120     bLED = LED_ON;
00121 
00122     while (true) {
00123         if (!button) {
00124             keyboard.mediaControl(KEY_MUTE);
00125             ledCnt++;
00126             gLED = (ledCnt & 1);
00127             bLED = (ledCnt & 2);
00128             rLED = gLED ^ bLED;
00129             Thread::wait(500);
00130         } else {
00131             Thread::wait(50);
00132         }
00133     }
00134 }
00135