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Added support for C027. Small re-factor to LPC1768 to accommodate this.
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‎README.md

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@@ -24,6 +24,7 @@ Supported Microcontrollers
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--------------------------
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NXP:
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* [LPC1768](http://mbed.org/platforms/mbed-LPC1768/) (Cortex-M3)
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* [LPC1768](http://mbed.org/platforms/u-blox-C027/) (Cortex-M3)
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* [LPC11U24](http://mbed.org/platforms/mbed-LPC11U24/) (Cortex-M0)
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* LPC2368 (ARM7TDMI-S)
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* LPC810 (Cortex-M0+)

‎libraries/mbed/common/board.c

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@@ -19,10 +19,10 @@
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WEAK void mbed_die(void);
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WEAK void mbed_die(void) {
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#if defined(DEVICE_ERROR_RED)
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#if defined(DEVICE_ERROR_RED)
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gpio_t led_red; gpio_init(&led_red, LED_RED, PIN_OUTPUT);
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25-
#elif defined(DEVICE_ERROR_PATTERN)
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#elif (DEVICE_ERROR_PATTERN == 1)
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gpio_t led_1; gpio_init(&led_1, LED1, PIN_OUTPUT);
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gpio_t led_2; gpio_init(&led_2, LED2, PIN_OUTPUT);
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gpio_t led_3; gpio_init(&led_3, LED3, PIN_OUTPUT);
@@ -33,18 +33,18 @@ WEAK void mbed_die(void) {
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#if defined(DEVICE_ERROR_RED)
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gpio_write(&led_red, 1);
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#elif defined(DEVICE_ERROR_PATTERN)
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#elif (DEVICE_ERROR_PATTERN == 1)
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gpio_write(&led_1, 1);
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gpio_write(&led_2, 0);
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gpio_write(&led_3, 0);
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gpio_write(&led_4, 1);
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#endif
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wait_ms(150);
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#if defined(DEVICE_ERROR_RED)
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#if defined(DEVICE_ERROR_RED)
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gpio_write(&led_red, 0);
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#elif defined(DEVICE_ERROR_PATTERN)
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#elif (DEVICE_ERROR_PATTERN == 1)
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gpio_write(&led_1, 0);
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gpio_write(&led_2, 1);
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gpio_write(&led_3, 1);

‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/PinNames.h renamed to ‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_MBED_LPC1768/PinNames.h

File renamed without changes.

‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/device.h renamed to ‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_MBED_LPC1768/device.h

File renamed without changes.

‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_MBED_LPC1768/reserved_pins.h

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// List of reserved pins for LPC1114
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#ifndef RESERVED_PINS_H
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#define RESERVED_PINS_H
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#define TARGET_RESERVED_PINS {P0_0, P0_11, P1_0, P1_1, P1_2}
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#endif

‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_UBLOX_C027/C027.cpp

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#include "C027.h"
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void mbed_die(void)
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{
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DigitalOut led(LED);
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led = 0;
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// Send SOS in Morse Code: // "... --- ... "
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const char sos[] = "=.=.=...===.===.===...=.=.=......";
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const int dot = 100; // length of the dot in milliseconds (typical: 50-100 ms)
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// lengths of symbols:
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// di = dot
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// dah = 3 dot
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// char space = 3 dot
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// word space = 6 dot
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for (int i = 0; /* nothing */; i = sos[i+1] ? i+1 : 0)
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{
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led = (sos[i] == '=');
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wait_ms(dot);
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}
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}
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C027::C027() :
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mdmEn(MDMEN), mdmRst(MDMRST), mdmPwrOn(MDMPWRON), // MDM CTRL
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mdmLvlOe(MDMLVLOE), mdmILvlOe(MDMILVLOE), mdmUsbDet(MDMUSBDET), // MDM IF
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gpsEn(GPSEN), gpsRst(GPSRST) // GPS CTRL
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{
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DigitalOut led(LED);
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DigitalOut mdmRts(MDMRTS);
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led = 0; // LED1: 0=off
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mdmRts = 0; // RTS: 0=ready to send
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// we start with the gps disabled
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gpsEn = 0; // LDOEN: 1=on,0=off
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gpsRst = 0; // RESET: 0=reset,1=operating
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gpsIsEnabled = false;
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// we start with the modem disabled
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mdmLvlOe = 1; // LVLEN: 1=disabled (uart/gpio)
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mdmILvlOe = 0; // ILVLEN: 0=disabled (i2c)
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mdmUsbDet = 0; // USBDET: 0=disabled
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mdmPwrOn = 1; // PWRON: 1=idle, 0=action
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mdmEn = 0; // LDOEN: 1=on, 0=off
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mdmRst = 0; // RESET: 0=reset, 1=operating
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mdmIsEnabled = false;
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mdmUseUsb = false;
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wait_ms(50); // when USB cable is inserted the interface chip issues
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// multiple resets to the target CPU We wait here for a short period to
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// prevent those resets from propagating to the modem and other
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// components.
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}
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void C027::mdmPower(bool enable)
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{
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if (!mdmIsEnabled && enable) // enable modem
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{
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#ifdef C027_REVA
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// we need the gps ldo for the level shifters of the modem
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gpsEn = 1; // LDOEN(gps): 0=off -> 1=on
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#endif
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mdmPwrOn = 0; // PWRON: 0=turn on
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mdmEn = 0; // LDOEN: 0=off
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mdmRst = 0; // RESET: 0=reset
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mdmLvlOe = 1; // LVLEN: 1=disabled
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mdmILvlOe = 0; // ILVLEN: 0=disabled
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mdmUsbDet = mdmUseUsb ? 1 : 0; // USBDET: 0=disabled, 1=enabled
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wait_ms( 10); // wait until supply switched off
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mdmEn = 1; // LDOEN: 0=off -> 1=on
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wait_ms( 10); // wait until supply stable and on
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wait_ms(300); // power on sequence is triggered by keeping reset 50ms-300ms low
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mdmRst = 1; // RESET: 0=reset -> 1=operating
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wait_ms(150); // LISA-C requires 150ms low to turn on
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mdmPwrOn = 1; // PWRON: 0=turn on -> 1=idle
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mdmIsEnabled = true;
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// the interfaces of the modem should be fully ready after a certain period
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// LISA-U200 5000ms
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// SARA-G350 3000ms
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// LISA-C200
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wait_ms(1000);
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mdmLvlOe = 0; // LVLEN: 0=enabled (uart/gpio)
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if (gpsIsEnabled)
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mdmILvlOe = 1; // ILVLEN: 1=enabled (i2c)
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}
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else if (mdmIsEnabled && !enable) // disable modem
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{
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mdmIsEnabled = false;
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// initiate power off sequence by setting PwnOn low for >1s
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mdmILvlOe = 0; // ILVLEN: 0=disabled (i2c)
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mdmLvlOe = 1; // LVLEN: 1=disabled (uart/gpio)
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mdmUsbDet = 0; // USBDET: 0=disabled
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mdmPwrOn = 0; // PWRON: 0=active
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wait_ms(1000); // send to sleep
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mdmPwrOn = 1; // PWRON: 0=active -> 1=idle
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// now we can savely switch off the ldo
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mdmRst = 0; // RESET: 1=operating -> 0=reset
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mdmEn = 0; // LDOEN: 1=on -> 0=off
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#ifdef C027_REVA
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// the gps ldo may no longer be needed level shifters of the modem
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// so we switch it off if the gps is not enabled
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if (!gpsIsEnabled)
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gpsEn = 0; // LDOEN(gps): 1=on -> 0=off
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#endif
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}
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}
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void C027::mdmUsbEnable(bool enable)
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{
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mdmUseUsb = enable;
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if (mdmIsEnabled)
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mdmUsbDet = mdmUseUsb ? 1 : 0;
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}
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void C027::mdmReset(void)
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{
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if (mdmIsEnabled)
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{
115+
mdmRst = 0; // RESET: 0=reset
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// power on sequence is triggered by reset low
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// LISA-U200 50ms
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// SARA-G350 50ms
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// LISA-C200 300ms
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wait_ms(300);
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mdmRst = 1; // RESET: 0=reset -> 1=operating
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}
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}
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125+
void C027::mdmWakeup(void)
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{
127+
if (mdmIsEnabled)
128+
{
129+
mdmPwrOn = 0;
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// wakeup the device by low pulse:
131+
// LISA-U200 50-80us
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// SARA-G350 5ms
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// LISA-C200 150ms
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wait_ms(150);
135+
mdmPwrOn = 1;
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}
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}
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void C027::mdmSleep(void)
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{
141+
if (mdmIsEnabled)
142+
{
143+
mdmPwrOn = 0;
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// going to sleep is triggerd by low pulse:
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// LISA-U200 1000ms
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// SARA-G350 n/a
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// LISA-C200 n/a
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wait_ms(1000);
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mdmPwrOn = 1;
150+
}
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}
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void C027::gpsPower(bool enable)
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{
155+
if (!gpsIsEnabled && enable) // enable gps
156+
{
157+
gpsRst = 0; // RESET: 0=reset
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gpsEn = 1; // LDOEN: 0=off -> 1=on
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wait_ms(1); // wait until stable
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gpsRst = 1; // RESET: 0=reset -> 1=operating
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gpsIsEnabled = true;
162+
// the gps schould be fully ready after 50ms
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if (mdmIsEnabled)
164+
mdmILvlOe = 1; // ILVLEN: 0=enabled (i2c)
165+
}
166+
else if (gpsIsEnabled && !enable) // diasble gps
167+
{
168+
gpsIsEnabled = false;
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mdmILvlOe = 0; // ILVLEN: 0=disabled (i2c)
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gpsRst = 0; // RESET: 1=operating -> 0=reset
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#ifdef C027_REVA
172+
// the gps ldo may have to remain enabled for the level shifters of the modem
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if (!mdmIsEnabled)
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gpsEn = 0; // LDOEN: 1=on -> 0=off
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#else
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gpsEn = 0; // LDOEN: 1=on -> 0=off
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#endif
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}
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}
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void C027::gpsReset(void)
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{
183+
if (gpsIsEnabled)
184+
{
185+
gpsRst = 0; // RESET: 0=reset,1=operating
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wait_ms(1);
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gpsRst = 1; // RESET: 1=operating,0=reset
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}
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}

‎libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_UBLOX_C027/C027.h

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/* Platform header file, for the u-blox C27-C20/U20/G35
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* mbed Internet of Things Starter Kit
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* http://mbed.org/platforms/u-blox-C027/
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*
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*/
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7+
#ifndef C027_H
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#define C027_H
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10+
#include "mbed.h"
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12+
// Override the weak mbed die function that flashes the leds.
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// We do not have fancy leds that can be flashed on the C027.
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void mbed_die(void);
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16+
//#define C027_REVA // remove this define for the revision B boards
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class C027
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{
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public:
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C027();
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void mdmPower(bool enable);
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void mdmUsbEnable(bool enable); // enable the USB interface
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void mdmReset(void);
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void mdmWakeup(void);
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void mdmSleep(void);
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void gpsPower(bool enable);
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void gpsReset(void);
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private:
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// modem pins
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DigitalOut mdmEn;
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DigitalOut mdmRst;
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DigitalOut mdmPwrOn;
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DigitalOut mdmLvlOe;
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DigitalOut mdmILvlOe;
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DigitalOut mdmUsbDet;
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bool mdmIsEnabled;
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bool mdmUseUsb;
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// gps pins
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DigitalOut gpsEn;
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DigitalOut gpsRst;
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bool gpsIsEnabled;
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};
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#endif

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