Board support library for C027
Dependents: IoTWorkshopLCD IoTWorkshopBuzzer IoTWorkshopSensors C027_USSDTest ... more
Fork of C027 by
C027.cpp@8:a356376db984, 2013-11-05 (annotated)
- Committer:
- mazgch
- Date:
- Tue Nov 05 21:41:46 2013 +0000
- Revision:
- 8:a356376db984
- Parent:
- 7:e3eab86f1de9
- Child:
- 9:7e038529bfff
updating the support library
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mazgch | 2:b7bd3660ff64 | 1 | /* Platform source file, for the u-blox C27-C20/U20/G35 |
mazgch | 2:b7bd3660ff64 | 2 | * mbed Internet of Things Starter Kit |
mazgch | 2:b7bd3660ff64 | 3 | * http://mbed.org/platforms/u-blox-C027/ |
mazgch | 2:b7bd3660ff64 | 4 | * |
mazgch | 2:b7bd3660ff64 | 5 | */ |
mazgch | 2:b7bd3660ff64 | 6 | |
mazgch | 2:b7bd3660ff64 | 7 | #include "C027.h" |
mazgch | 2:b7bd3660ff64 | 8 | |
mazgch | 2:b7bd3660ff64 | 9 | void mbed_die(void) |
mazgch | 2:b7bd3660ff64 | 10 | { |
mazgch | 8:a356376db984 | 11 | DigitalOut led(LED); |
mazgch | 2:b7bd3660ff64 | 12 | for (;;) |
mazgch | 2:b7bd3660ff64 | 13 | { |
mazgch | 2:b7bd3660ff64 | 14 | // nothing to do here |
mazgch | 8:a356376db984 | 15 | led = 0; |
mazgch | 8:a356376db984 | 16 | wait_ms(200); |
mazgch | 8:a356376db984 | 17 | led = 1; |
mazgch | 8:a356376db984 | 18 | wait_ms(200); |
mazgch | 2:b7bd3660ff64 | 19 | } |
mazgch | 2:b7bd3660ff64 | 20 | } |
mazgch | 2:b7bd3660ff64 | 21 | |
mazgch | 6:e11bf54dd344 | 22 | C027::C027() : |
mazgch | 8:a356376db984 | 23 | mdmEn(MDMEN), mdmRst(MDMRST), mdmPwrOn(MDMPWRON), // MDM CTRL |
mazgch | 8:a356376db984 | 24 | mdmRts(MDMRTS), mdmLvlOe(MDMLVLOE), mdmUsbDet(MDMUSBDET), // MDM IF |
mazgch | 8:a356376db984 | 25 | gpsEn(GPSEN), gpsRst(GPSRST) // GPS CTRL |
mazgch | 6:e11bf54dd344 | 26 | { |
mazgch | 7:e3eab86f1de9 | 27 | // we start with the gps disabled |
mazgch | 8:a356376db984 | 28 | gpsEn = 0; // LDOEN: 1=on,0=off |
mazgch | 8:a356376db984 | 29 | gpsRst = 0; // RESET: 0=reset,1=operating |
mazgch | 6:e11bf54dd344 | 30 | gpsIsEnabled = false; |
mazgch | 7:e3eab86f1de9 | 31 | // we start with the modem disabled |
mazgch | 8:a356376db984 | 32 | mdmLvlOe = 1; // LVLEN: 1=disabled |
mazgch | 8:a356376db984 | 33 | mdmUsbDet = 0; // USBDET: 0=disabled |
mazgch | 8:a356376db984 | 34 | mdmPwrOn = 1; // PWRON: 1=idle, 0=action |
mazgch | 8:a356376db984 | 35 | mdmRts = 0; // RTS. 0=ready to send |
mazgch | 8:a356376db984 | 36 | mdmEn = 0; // LDOEN: 1=on, 0=off |
mazgch | 8:a356376db984 | 37 | mdmRst = 0; // RESET: 0=reset, 1=operating |
mazgch | 6:e11bf54dd344 | 38 | mdmIsEnabled = false; |
mazgch | 6:e11bf54dd344 | 39 | } |
mazgch | 6:e11bf54dd344 | 40 | |
mazgch | 6:e11bf54dd344 | 41 | void C027::mdmPower(bool enable) |
mazgch | 6:e11bf54dd344 | 42 | { |
mazgch | 7:e3eab86f1de9 | 43 | if (!mdmIsEnabled && enable) // enable modem |
mazgch | 6:e11bf54dd344 | 44 | { |
mazgch | 7:e3eab86f1de9 | 45 | #ifdef C027_REVA |
mazgch | 7:e3eab86f1de9 | 46 | // we need the gps ldo for the level shifters of the modem |
mazgch | 8:a356376db984 | 47 | gpsEn = 1; // LDOEN(gps): 0=off -> 1=on |
mazgch | 7:e3eab86f1de9 | 48 | #endif |
mazgch | 8:a356376db984 | 49 | mdmPwrOn = 1; // PWRON: 1=idle |
mazgch | 8:a356376db984 | 50 | mdmEn = 0; // LDOEN: 0=off |
mazgch | 8:a356376db984 | 51 | mdmRst = 0; // RESET: 0=reset |
mazgch | 8:a356376db984 | 52 | mdmLvlOe = 1; // LVLEN: 1=disabled |
mazgch | 8:a356376db984 | 53 | mdmUsbDet = 0; // USBDET: 0=disabled |
mazgch | 8:a356376db984 | 54 | wait_ms( 10); // wait until supply switched off |
mazgch | 8:a356376db984 | 55 | mdmEn = 1; // LDOEN: 0=off -> 1=on |
mazgch | 8:a356376db984 | 56 | wait_ms( 10); // wait until supply stable and on |
mazgch | 8:a356376db984 | 57 | wait_ms(300); // power on sequence is triggered by keeping reset 50ms-300ms low |
mazgch | 8:a356376db984 | 58 | mdmRst = 1; // RESET: 0=reset -> 1=operating |
mazgch | 8:a356376db984 | 59 | mdmLvlOe = 0; // LVLEN: 0=enabled |
mazgch | 8:a356376db984 | 60 | mdmUsbDet = 1; // USBDET: 1=enabled |
mazgch | 7:e3eab86f1de9 | 61 | mdmIsEnabled = true; |
mazgch | 7:e3eab86f1de9 | 62 | // the modem schould be fully ready after 3000ms |
mazgch | 7:e3eab86f1de9 | 63 | } |
mazgch | 7:e3eab86f1de9 | 64 | else if (mdmIsEnabled && !enable) // disable modem |
mazgch | 7:e3eab86f1de9 | 65 | { |
mazgch | 7:e3eab86f1de9 | 66 | mdmIsEnabled = false; |
mazgch | 7:e3eab86f1de9 | 67 | // initiate power off sequence by setting PwnOn low for >1s |
mazgch | 8:a356376db984 | 68 | mdmLvlOe = 1; // LVLEN: 1=disabled |
mazgch | 8:a356376db984 | 69 | mdmUsbDet = 0; // USBDET: 0=disabled |
mazgch | 8:a356376db984 | 70 | mdmPwrOn = 0; // PWRON: 0=active |
mazgch | 8:a356376db984 | 71 | wait_ms(1000); // send to sleep |
mazgch | 8:a356376db984 | 72 | mdmPwrOn = 1; // PWRON: 0=active -> 1=idle |
mazgch | 7:e3eab86f1de9 | 73 | // now we can savely switch off the ldo |
mazgch | 8:a356376db984 | 74 | mdmRst = 0; // RESET: 1=operating -> 0=reset |
mazgch | 8:a356376db984 | 75 | mdmEn = 0; // LDOEN: 1=on -> 0=off |
mazgch | 7:e3eab86f1de9 | 76 | #ifdef C027_REVA |
mazgch | 7:e3eab86f1de9 | 77 | // the gps ldo may no longer be needed level shifters of the modem |
mazgch | 7:e3eab86f1de9 | 78 | // so we switch it off if the gps is not enabled |
mazgch | 7:e3eab86f1de9 | 79 | if (!gpsIsEnabled) |
mazgch | 7:e3eab86f1de9 | 80 | gpsEn = 0; // LDOEN(gps): 1=on -> 0=off |
mazgch | 7:e3eab86f1de9 | 81 | #endif |
mazgch | 6:e11bf54dd344 | 82 | } |
mazgch | 6:e11bf54dd344 | 83 | } |
mazgch | 6:e11bf54dd344 | 84 | |
mazgch | 6:e11bf54dd344 | 85 | void C027::mdmReset(void) |
mazgch | 6:e11bf54dd344 | 86 | { |
mazgch | 8:a356376db984 | 87 | if (mdmIsEnabled) |
mazgch | 8:a356376db984 | 88 | { |
mazgch | 8:a356376db984 | 89 | mdmRst = 0; // RESET: 0=reset |
mazgch | 8:a356376db984 | 90 | // power on sequence is triggered by reset low |
mazgch | 8:a356376db984 | 91 | // LISA-U200 50ms |
mazgch | 8:a356376db984 | 92 | // SARA-G350 50ms |
mazgch | 8:a356376db984 | 93 | // LISA-C200 300ms |
mazgch | 8:a356376db984 | 94 | wait_ms(300); |
mazgch | 8:a356376db984 | 95 | mdmRst = 1; // RESET: 0=reset -> 1=operating |
mazgch | 8:a356376db984 | 96 | } |
mazgch | 8:a356376db984 | 97 | } |
mazgch | 8:a356376db984 | 98 | |
mazgch | 8:a356376db984 | 99 | void C027::mdmWakeup(void) |
mazgch | 8:a356376db984 | 100 | { |
mazgch | 6:e11bf54dd344 | 101 | if (mdmIsEnabled) |
mazgch | 6:e11bf54dd344 | 102 | { |
mazgch | 8:a356376db984 | 103 | mdmPwrOn = 0; |
mazgch | 8:a356376db984 | 104 | // wakeup the device by low pulse: |
mazgch | 8:a356376db984 | 105 | // LISA-U200 50-80us |
mazgch | 8:a356376db984 | 106 | // SARA-G350 5ms |
mazgch | 8:a356376db984 | 107 | // LISA-C200 150ms |
mazgch | 8:a356376db984 | 108 | wait_ms(150); |
mazgch | 8:a356376db984 | 109 | mdmPwrOn = 1; |
mazgch | 6:e11bf54dd344 | 110 | } |
mazgch | 8:a356376db984 | 111 | } |
mazgch | 8:a356376db984 | 112 | |
mazgch | 8:a356376db984 | 113 | void C027::mdmSleep(void) |
mazgch | 8:a356376db984 | 114 | { |
mazgch | 8:a356376db984 | 115 | if (mdmIsEnabled) |
mazgch | 8:a356376db984 | 116 | { |
mazgch | 8:a356376db984 | 117 | mdmPwrOn = 0; |
mazgch | 8:a356376db984 | 118 | // going to sleep is triggerd by low pulse: |
mazgch | 8:a356376db984 | 119 | // LISA-U200 1000ms |
mazgch | 8:a356376db984 | 120 | // SARA-G350 n/a |
mazgch | 8:a356376db984 | 121 | // LISA-C200 n/a |
mazgch | 8:a356376db984 | 122 | wait_ms(1000); |
mazgch | 8:a356376db984 | 123 | mdmPwrOn = 1; |
mazgch | 8:a356376db984 | 124 | } |
mazgch | 7:e3eab86f1de9 | 125 | } |
mazgch | 7:e3eab86f1de9 | 126 | |
mazgch | 7:e3eab86f1de9 | 127 | void C027::gpsPower(bool enable) |
mazgch | 7:e3eab86f1de9 | 128 | { |
mazgch | 7:e3eab86f1de9 | 129 | if (!gpsIsEnabled && enable) // enable gps |
mazgch | 7:e3eab86f1de9 | 130 | { |
mazgch | 7:e3eab86f1de9 | 131 | gpsRst = 0; // RESET: 0=reset |
mazgch | 7:e3eab86f1de9 | 132 | gpsEn = 1; // LDOEN: 0=off -> 1=on |
mazgch | 7:e3eab86f1de9 | 133 | wait_ms(1); // wait until stable |
mazgch | 7:e3eab86f1de9 | 134 | gpsRst = 1; // RESET: 0=reset -> 1=operating |
mazgch | 7:e3eab86f1de9 | 135 | gpsIsEnabled = true; |
mazgch | 7:e3eab86f1de9 | 136 | // the gps schould be fully ready after 50ms |
mazgch | 7:e3eab86f1de9 | 137 | } |
mazgch | 7:e3eab86f1de9 | 138 | else if (gpsIsEnabled && !enable) // diasble gps |
mazgch | 7:e3eab86f1de9 | 139 | { |
mazgch | 7:e3eab86f1de9 | 140 | gpsIsEnabled = false; |
mazgch | 7:e3eab86f1de9 | 141 | gpsRst = 0; // RESET: 1=operating -> 0=reset |
mazgch | 7:e3eab86f1de9 | 142 | #ifdef C027_REVA |
mazgch | 7:e3eab86f1de9 | 143 | // the gps ldo may have to remain enabled for the level shifters of the modem |
mazgch | 7:e3eab86f1de9 | 144 | if (!mdmIsEnabled) |
mazgch | 7:e3eab86f1de9 | 145 | gpsEn = 0; // LDOEN: 1=on -> 0=off |
mazgch | 7:e3eab86f1de9 | 146 | #else |
mazgch | 7:e3eab86f1de9 | 147 | gpsEn = 0; // LDOEN: 1=on -> 0=off |
mazgch | 7:e3eab86f1de9 | 148 | #endif |
mazgch | 7:e3eab86f1de9 | 149 | } |
mazgch | 6:e11bf54dd344 | 150 | } |
mazgch | 6:e11bf54dd344 | 151 | |
mazgch | 6:e11bf54dd344 | 152 | void C027::gpsReset(void) |
mazgch | 6:e11bf54dd344 | 153 | { |
mazgch | 6:e11bf54dd344 | 154 | if (gpsIsEnabled) |
mazgch | 6:e11bf54dd344 | 155 | { |
mazgch | 6:e11bf54dd344 | 156 | gpsRst = 0; // RESET: 0=reset,1=operating |
mazgch | 6:e11bf54dd344 | 157 | wait_ms(1); |
mazgch | 6:e11bf54dd344 | 158 | gpsRst = 1; // RESET: 1=operating,0=reset |
mazgch | 6:e11bf54dd344 | 159 | } |
mazgch | 6:e11bf54dd344 | 160 | } |