Fork to support REVB hardware.
Dependents: C027_BootTest_revb C027_EthernetSniffTest C027_M3_SerialEcho C027_HelloWorld_revb ... more
Fork of C027 by
C027.cpp@22:2ab87e985526, 2013-12-15 (annotated)
- Committer:
- dixter1
- Date:
- Sun Dec 15 21:17:22 2013 +0000
- Revision:
- 22:2ab87e985526
- Parent:
- 21:db7c445289f5
Comment Updates
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 | 11:722101675ce4 | 12 | led = 0; |
mazgch | 11:722101675ce4 | 13 | // Send SOS in Morse Code: // "... --- ... " |
mazgch | 11:722101675ce4 | 14 | const char sos[] = "=.=.=...===.===.===...=.=.=......"; |
mazgch | 11:722101675ce4 | 15 | const int dot = 100; // length of the dot in milliseconds (typical: 50-100 ms) |
mazgch | 11:722101675ce4 | 16 | // lengths of symbols: |
mazgch | 11:722101675ce4 | 17 | // di = dot |
mazgch | 11:722101675ce4 | 18 | // dah = 3 dot |
mazgch | 11:722101675ce4 | 19 | // char space = 3 dot |
mazgch | 11:722101675ce4 | 20 | // word space = 6 dot |
mazgch | 11:722101675ce4 | 21 | for (int i = 0; /* nothing */; i = sos[i+1] ? i+1 : 0) |
mazgch | 2:b7bd3660ff64 | 22 | { |
mazgch | 11:722101675ce4 | 23 | led = (sos[i] == '='); |
mazgch | 11:722101675ce4 | 24 | wait_ms(dot); |
mazgch | 2:b7bd3660ff64 | 25 | } |
mazgch | 2:b7bd3660ff64 | 26 | } |
mazgch | 2:b7bd3660ff64 | 27 | |
dixter1 | 20:2ae219d82c0e | 28 | C027::C027(): |
mazgch | 13:fb30e9923a7b | 29 | mdmEn(MDMEN), mdmRst(MDMRST), mdmPwrOn(MDMPWRON), // MDM CTRL |
mazgch | 13:fb30e9923a7b | 30 | mdmLvlOe(MDMLVLOE), mdmILvlOe(MDMILVLOE), mdmUsbDet(MDMUSBDET), // MDM IF |
mazgch | 13:fb30e9923a7b | 31 | gpsEn(GPSEN), gpsRst(GPSRST) // GPS CTRL |
mazgch | 6:e11bf54dd344 | 32 | { |
mazgch | 14:e30f90b5447e | 33 | DigitalOut led(LED); |
mazgch | 13:fb30e9923a7b | 34 | DigitalOut mdmRts(MDMRTS); |
mazgch | 14:e30f90b5447e | 35 | led = 0; // LED1: 0=off |
mazgch | 14:e30f90b5447e | 36 | mdmRts = 0; // RTS: 0=ready to send |
mazgch | 7:e3eab86f1de9 | 37 | // we start with the gps disabled |
mazgch | 8:a356376db984 | 38 | gpsEn = 0; // LDOEN: 1=on,0=off |
mazgch | 8:a356376db984 | 39 | gpsRst = 0; // RESET: 0=reset,1=operating |
mazgch | 6:e11bf54dd344 | 40 | gpsIsEnabled = false; |
mazgch | 7:e3eab86f1de9 | 41 | // we start with the modem disabled |
dixter1 | 16:6475e8463afc | 42 | mdmLvlOe = 1; // LVLEN: 1=disabled (uart/gpio) |
dixter1 | 16:6475e8463afc | 43 | mdmILvlOe = 1; // ILVLEN: 0=disabled (i2c) |
dixter1 | 15:971186932592 | 44 | mdmUsbDet = 1; // USBDET: 0=disabled |
dixter1 | 20:2ae219d82c0e | 45 | |
dixter1 | 20:2ae219d82c0e | 46 | |
mazgch | 8:a356376db984 | 47 | mdmPwrOn = 1; // PWRON: 1=idle, 0=action |
mazgch | 8:a356376db984 | 48 | mdmEn = 0; // LDOEN: 1=on, 0=off |
dixter1 | 15:971186932592 | 49 | mdmRst = 1; // RESET: 0=reset, 1=operating |
mazgch | 6:e11bf54dd344 | 50 | mdmIsEnabled = false; |
dixter1 | 20:2ae219d82c0e | 51 | mdmUseUsb = false; |
dixter1 | 20:2ae219d82c0e | 52 | |
dixter1 | 19:82c9967207f1 | 53 | // The USB insertion and removal, and the Reset Button |
dixter1 | 19:82c9967207f1 | 54 | // can cause multiple resets to the device. Wait for |
dixter1 | 19:82c9967207f1 | 55 | // a period of time for this to settle before proceeding |
dixter1 | 19:82c9967207f1 | 56 | // with turning on various components on the board. |
dixter1 | 20:2ae219d82c0e | 57 | wait_ms(3000); |
mazgch | 6:e11bf54dd344 | 58 | } |
mazgch | 6:e11bf54dd344 | 59 | |
dixter1 | 22:2ab87e985526 | 60 | |
dixter1 | 22:2ab87e985526 | 61 | // this is a test function designed to turn on all hardware that |
dixter1 | 22:2ab87e985526 | 62 | // might leak current into the LISA chip, while disabling the |
dixter1 | 22:2ab87e985526 | 63 | // LISA chip itself. This is intended to be as harsh as possible, |
dixter1 | 22:2ab87e985526 | 64 | // and is most relevant to REV B hardware. |
dixter1 | 16:6475e8463afc | 65 | void C027::LeakageTest( void ) |
dixter1 | 16:6475e8463afc | 66 | { |
dixter1 | 16:6475e8463afc | 67 | mdmEn = 0; //disable |
dixter1 | 16:6475e8463afc | 68 | gpsEn = 1; //enable |
dixter1 | 16:6475e8463afc | 69 | mdmLvlOe = 0; //enable |
dixter1 | 16:6475e8463afc | 70 | mdmILvlOe = 1; //enable |
dixter1 | 16:6475e8463afc | 71 | mdmPwrOn = 1; //hi (no meaning this context) |
dixter1 | 16:6475e8463afc | 72 | } |
dixter1 | 16:6475e8463afc | 73 | |
dixter1 | 20:2ae219d82c0e | 74 | void C027::mdmPower(bool enable, bool use_mdmuart) |
mazgch | 6:e11bf54dd344 | 75 | { |
mazgch | 7:e3eab86f1de9 | 76 | if (!mdmIsEnabled && enable) // enable modem |
mazgch | 6:e11bf54dd344 | 77 | { |
dixter1 | 20:2ae219d82c0e | 78 | mdmUsbDet = ( use_mdmuart? 0:1 ); // USBDET: 0=enable uart, 1=USB Only |
dixter1 | 20:2ae219d82c0e | 79 | wait_ms(10); |
mazgch | 8:a356376db984 | 80 | mdmEn = 1; // LDOEN: 0=off -> 1=on |
dixter1 | 22:2ab87e985526 | 81 | wait_ms(50); // |
dixter1 | 15:971186932592 | 82 | mdmPwrOn = 0; // PWRON: 0=turn on -> 1=idle |
dixter1 | 22:2ab87e985526 | 83 | wait_ms(300); // power on is triggered by asserting PwrOn |
mazgch | 14:e30f90b5447e | 84 | mdmPwrOn = 1; // PWRON: 0=turn on -> 1=idle |
mazgch | 7:e3eab86f1de9 | 85 | mdmIsEnabled = true; |
dixter1 | 16:6475e8463afc | 86 | wait_ms(1000); |
dixter1 | 16:6475e8463afc | 87 | mdmLvlOe = 0; // LVLEN: 0=enabled; |
mazgch | 7:e3eab86f1de9 | 88 | } |
mazgch | 7:e3eab86f1de9 | 89 | else if (mdmIsEnabled && !enable) // disable modem |
mazgch | 7:e3eab86f1de9 | 90 | { |
mazgch | 7:e3eab86f1de9 | 91 | mdmIsEnabled = false; |
mazgch | 7:e3eab86f1de9 | 92 | // initiate power off sequence by setting PwnOn low for >1s |
mazgch | 13:fb30e9923a7b | 93 | mdmILvlOe = 0; // ILVLEN: 0=disabled (i2c) |
mazgch | 13:fb30e9923a7b | 94 | mdmLvlOe = 1; // LVLEN: 1=disabled (uart/gpio) |
mazgch | 8:a356376db984 | 95 | mdmUsbDet = 0; // USBDET: 0=disabled |
mazgch | 8:a356376db984 | 96 | mdmPwrOn = 0; // PWRON: 0=active |
mazgch | 8:a356376db984 | 97 | wait_ms(1000); // send to sleep |
mazgch | 8:a356376db984 | 98 | mdmPwrOn = 1; // PWRON: 0=active -> 1=idle |
mazgch | 7:e3eab86f1de9 | 99 | // now we can savely switch off the ldo |
mazgch | 8:a356376db984 | 100 | mdmRst = 0; // RESET: 1=operating -> 0=reset |
mazgch | 8:a356376db984 | 101 | mdmEn = 0; // LDOEN: 1=on -> 0=off |
dixter1 | 21:db7c445289f5 | 102 | gpsEn = 0; // LDOEN(gps): 1=on -> 0=off |
mazgch | 6:e11bf54dd344 | 103 | } |
mazgch | 13:fb30e9923a7b | 104 | |
mazgch | 6:e11bf54dd344 | 105 | } |
mazgch | 6:e11bf54dd344 | 106 | |
mazgch | 14:e30f90b5447e | 107 | void C027::mdmUsbEnable(bool enable) |
mazgch | 14:e30f90b5447e | 108 | { |
mazgch | 14:e30f90b5447e | 109 | mdmUseUsb = enable; |
mazgch | 14:e30f90b5447e | 110 | if (mdmIsEnabled) |
mazgch | 14:e30f90b5447e | 111 | mdmUsbDet = mdmUseUsb ? 1 : 0; |
mazgch | 14:e30f90b5447e | 112 | } |
mazgch | 14:e30f90b5447e | 113 | |
mazgch | 6:e11bf54dd344 | 114 | void C027::mdmReset(void) |
mazgch | 6:e11bf54dd344 | 115 | { |
mazgch | 8:a356376db984 | 116 | if (mdmIsEnabled) |
mazgch | 8:a356376db984 | 117 | { |
mazgch | 8:a356376db984 | 118 | mdmRst = 0; // RESET: 0=reset |
mazgch | 8:a356376db984 | 119 | // power on sequence is triggered by reset low |
mazgch | 8:a356376db984 | 120 | // LISA-U200 50ms |
mazgch | 8:a356376db984 | 121 | // SARA-G350 50ms |
mazgch | 8:a356376db984 | 122 | // LISA-C200 300ms |
mazgch | 8:a356376db984 | 123 | wait_ms(300); |
mazgch | 8:a356376db984 | 124 | mdmRst = 1; // RESET: 0=reset -> 1=operating |
mazgch | 8:a356376db984 | 125 | } |
mazgch | 8:a356376db984 | 126 | } |
mazgch | 8:a356376db984 | 127 | |
mazgch | 8:a356376db984 | 128 | void C027::mdmWakeup(void) |
mazgch | 8:a356376db984 | 129 | { |
mazgch | 6:e11bf54dd344 | 130 | if (mdmIsEnabled) |
mazgch | 6:e11bf54dd344 | 131 | { |
mazgch | 8:a356376db984 | 132 | mdmPwrOn = 0; |
mazgch | 8:a356376db984 | 133 | // wakeup the device by low pulse: |
mazgch | 8:a356376db984 | 134 | // LISA-U200 50-80us |
mazgch | 8:a356376db984 | 135 | // SARA-G350 5ms |
mazgch | 8:a356376db984 | 136 | // LISA-C200 150ms |
mazgch | 8:a356376db984 | 137 | wait_ms(150); |
mazgch | 8:a356376db984 | 138 | mdmPwrOn = 1; |
mazgch | 6:e11bf54dd344 | 139 | } |
mazgch | 8:a356376db984 | 140 | } |
mazgch | 8:a356376db984 | 141 | |
dixter1 | 15:971186932592 | 142 | // delete this function? |
dixter1 | 15:971186932592 | 143 | // pwr_on signal has no function once modem is powered on. |
mazgch | 8:a356376db984 | 144 | void C027::mdmSleep(void) |
mazgch | 8:a356376db984 | 145 | { |
mazgch | 8:a356376db984 | 146 | if (mdmIsEnabled) |
mazgch | 8:a356376db984 | 147 | { |
mazgch | 8:a356376db984 | 148 | mdmPwrOn = 0; |
mazgch | 8:a356376db984 | 149 | // going to sleep is triggerd by low pulse: |
mazgch | 8:a356376db984 | 150 | // LISA-U200 1000ms |
mazgch | 8:a356376db984 | 151 | // SARA-G350 n/a |
mazgch | 8:a356376db984 | 152 | // LISA-C200 n/a |
mazgch | 8:a356376db984 | 153 | wait_ms(1000); |
mazgch | 8:a356376db984 | 154 | mdmPwrOn = 1; |
mazgch | 8:a356376db984 | 155 | } |
mazgch | 7:e3eab86f1de9 | 156 | } |
mazgch | 7:e3eab86f1de9 | 157 | |
dixter1 | 21:db7c445289f5 | 158 | // enable: enable the gps power |
dixter1 | 21:db7c445289f5 | 159 | // lisa_gps: connect GPS to the LISA chip |
dixter1 | 21:db7c445289f5 | 160 | void C027::gpsPower(bool enable, bool lisa_gps ) |
mazgch | 7:e3eab86f1de9 | 161 | { |
mazgch | 7:e3eab86f1de9 | 162 | if (!gpsIsEnabled && enable) // enable gps |
mazgch | 7:e3eab86f1de9 | 163 | { |
mazgch | 7:e3eab86f1de9 | 164 | gpsRst = 0; // RESET: 0=reset |
mazgch | 7:e3eab86f1de9 | 165 | gpsEn = 1; // LDOEN: 0=off -> 1=on |
mazgch | 7:e3eab86f1de9 | 166 | wait_ms(1); // wait until stable |
mazgch | 7:e3eab86f1de9 | 167 | gpsRst = 1; // RESET: 0=reset -> 1=operating |
mazgch | 7:e3eab86f1de9 | 168 | gpsIsEnabled = true; |
mazgch | 7:e3eab86f1de9 | 169 | // the gps schould be fully ready after 50ms |
dixter1 | 21:db7c445289f5 | 170 | if (mdmIsEnabled && lisa_gps ) |
dixter1 | 21:db7c445289f5 | 171 | { |
dixter1 | 21:db7c445289f5 | 172 | mdmILvlOe = 0; // ILVLEN: 0=enabled (i2c) |
dixter1 | 21:db7c445289f5 | 173 | } |
dixter1 | 21:db7c445289f5 | 174 | else |
dixter1 | 21:db7c445289f5 | 175 | { |
dixter1 | 21:db7c445289f5 | 176 | mdmILvlOe = 1; // ILVLEN: 0=enabled (i2c) |
dixter1 | 21:db7c445289f5 | 177 | } |
mazgch | 7:e3eab86f1de9 | 178 | } |
mazgch | 7:e3eab86f1de9 | 179 | else if (gpsIsEnabled && !enable) // diasble gps |
mazgch | 7:e3eab86f1de9 | 180 | { |
mazgch | 7:e3eab86f1de9 | 181 | gpsIsEnabled = false; |
mazgch | 13:fb30e9923a7b | 182 | mdmILvlOe = 0; // ILVLEN: 0=disabled (i2c) |
mazgch | 13:fb30e9923a7b | 183 | gpsRst = 0; // RESET: 1=operating -> 0=reset |
mazgch | 13:fb30e9923a7b | 184 | gpsEn = 0; // LDOEN: 1=on -> 0=off |
mazgch | 7:e3eab86f1de9 | 185 | } |
mazgch | 6:e11bf54dd344 | 186 | } |
mazgch | 6:e11bf54dd344 | 187 | |
mazgch | 6:e11bf54dd344 | 188 | void C027::gpsReset(void) |
mazgch | 6:e11bf54dd344 | 189 | { |
mazgch | 6:e11bf54dd344 | 190 | if (gpsIsEnabled) |
mazgch | 6:e11bf54dd344 | 191 | { |
mazgch | 6:e11bf54dd344 | 192 | gpsRst = 0; // RESET: 0=reset,1=operating |
mazgch | 6:e11bf54dd344 | 193 | wait_ms(1); |
mazgch | 6:e11bf54dd344 | 194 | gpsRst = 1; // RESET: 1=operating,0=reset |
mazgch | 6:e11bf54dd344 | 195 | } |
mazgch | 6:e11bf54dd344 | 196 | } |