testLRRPins.cpp

00001 #include "mbed.h"
00002 #include <string>
00003 #include "../../config.h"
00004 
00005 #ifdef __TEST_LRR__
00006 DigitalOut gpio0(GPIO0);
00007 DigitalOut gpio1(GPIO1);
00008 DigitalOut gpio2(GPIO2);
00009 DigitalOut gpio3(GPIO3);
00010 DigitalOut wake_DOUT(WAKE);
00011 DigitalOut i2cOut1(I2C1_SCL);
00012 DigitalOut i2cOut2(I2C1_SDA);
00013 
00014 DigitalOut uartCts(UART1_CTS);
00015 DigitalOut uartRts(UART1_RTS);
00016 DigitalOut uartTx(UART1_TX);
00017 DigitalOut uartRx(UART1_RX);
00018 
00019 DigitalOut mosi(SPI_MOSI);
00020 DigitalOut sck(SPI_SCK);
00021 
00022 DigitalOut nss(SPI_NSS, 1); // if low then miso on the flash becomes output
00023 DigitalInOut miso(SPI_MISO, PIN_INPUT, PullNone, 0);
00024 
00025 Serial pc(USBTX, USBRX); // Externally defined
00026 
00027 const static std::string PIN_NAMES [] = {
00028        "Pin  2: UART_TX ", // Idx  0
00029        "Pin  3: UART_RX ", // Idx  1
00030        "Pin  4: MISO    ", // Idx  2
00031        "Pin  6: SCL     ", // Idx  3
00032        "Pin  7: SDA     ", // Idx  4
00033        "Pin 11: MOSI    ", // Idx  5
00034        "Pin 12: UART_CTS", // Idx  6
00035        "Pin 13: WAKE    ", // Idx  7
00036        "Pin 15: GPIO2   ", // Idx  8
00037        "Pin 16: UART_RTS", // Idx  9
00038        "Pin 17: NSS     ", // Idx 10
00039        "Pin 18: SCK     ", // Idx 11
00040        "Pin 19: GPIO1   ", // Idx 12
00041        "Pin 20: GPIO3   "  // Idx 13
00042 };
00043 
00044 const uint8_t config0PinIdx[] = {0,1,  3,4,5,6,7,8,9,10,11,12,13};
00045 const uint8_t config1PinIdx[] = {0,1,2,3,4,5,6,7,8,9,   11,12,13};
00046 
00047 class MenuManager
00048 {
00049 private:
00050     uint8_t mCurrSel; // Current selection
00051     bool validInput(uint8_t in) {
00052         return in <= 1; // Either 0, 1
00053     }
00054 public:
00055     MenuManager() {
00056         mCurrSel = 0;
00057     }
00058     uint8_t getCurrentSel() {
00059         return mCurrSel;
00060     }
00061     void applyInput(uint8_t in) {
00062         if (validInput(in)) {
00063             mCurrSel = in;
00064         }
00065     }
00066     void printMenu() {
00067         pc.printf("===============================================\r\n");
00068         pc.printf("= LRR I/O Tester                              =\r\n");
00069         pc.printf("===============================================\r\n");
00070         pc.printf("= Option 0: MISO Disabled, NSS Enabled        =\r\n");
00071         pc.printf("= Option 1: MISO Enabled,  NSS Disabled       = \r\n");
00072         pc.printf("= Current Selection is %d                      =\r\n", mCurrSel);
00073         pc.printf("===============================================\r\n");
00074         pc.printf("= Details:                                    =\r\n");
00075         if (mCurrSel == 0) {
00076             pc.printf("= The following pins are toggling:            =\r\n");
00077             pc.printf("= Pin #: Name                                 =\r\n");
00078             for (unsigned int i=0; i < sizeof(config0PinIdx); i++) {
00079                 pc.printf("= %s                            =\r\n", PIN_NAMES[i].c_str());
00080             }
00081         }
00082         else if (mCurrSel == 1) {
00083             pc.printf("= The following pins are toggling:            =\r\n");
00084             pc.printf("= Pin #: Name                                 =\r\n");
00085             for (unsigned int i=0; i < sizeof(config1PinIdx); i++) {
00086                 pc.printf("= %s                            =\r\n", PIN_NAMES[i].c_str());
00087             }
00088         }
00089         pc.printf("===============================================\r\n");
00090     }
00091 };
00092 
00093 /**
00094  * Checks that in idle state all the IOs are pulled up.
00095  */
00096 int main ()
00097 {
00098     pc.baud(115200);
00099 
00100     MenuManager menuMgr;
00101     menuMgr.printMenu();
00102 
00103     while (true) {
00104         gpio0 = !gpio0;
00105         gpio1 = !gpio1;
00106         gpio2 = !gpio2;
00107         gpio3 = !gpio3;
00108         wake_DOUT = !wake_DOUT;
00109         i2cOut1 = !i2cOut1;
00110         i2cOut2 = !i2cOut2;
00111 
00112         uartCts = !uartCts;
00113         uartRts = !uartRts;
00114         uartTx = !uartTx;
00115         uartRx = !uartRx;
00116 
00117         mosi = !mosi;
00118         sck = !sck;
00119 
00120         if (menuMgr.getCurrentSel() == 0) {
00121             miso.input();
00122             nss = !nss;
00123         }
00124         else if (menuMgr.getCurrentSel() == 1) {
00125             nss = 1; // Disable flash
00126             miso.output();
00127             miso = !miso;
00128         }
00129 
00130         if (pc.readable()) {
00131             char menuInput = pc.getc();
00132             menuInput -= '0'; // Convert to raw interger value
00133             menuMgr.applyInput(menuInput);
00134             menuMgr.printMenu();
00135         }
00136         else {
00137             pc.printf("*");
00138         }
00139         wait(1.0);
00140     }
00141     return 0;
00142 }
00143 #endif