mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
Diff: targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_UBLOX_C027/platform_init.c
- Revision:
- 81:a9456fdf72fa
- Child:
- 83:5a6f638110fe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC176X/TARGET_UBLOX_C027/platform_init.c Fri Jan 31 09:00:05 2014 +0000 @@ -0,0 +1,39 @@ + +#include "gpio_api.h" +#include "wait_api.h" + + // called before main +void mbed_main() +{ + gpio_t modemEn, modemRst, modemPwrOn, modemLvlOe, modemILvlOe, modemUsbDet; + gpio_t gpsEn, gpsRst, led, modemRts; + + gpio_init(&modemEn, MDMEN, PIN_OUTPUT); + gpio_init(&modemRst, MDMRST, PIN_OUTPUT); + gpio_init(&modemPwrOn, MDMPWRON, PIN_OUTPUT); + gpio_init(&modemLvlOe, MDMLVLOE, PIN_OUTPUT); + gpio_init(&modemILvlOe, MDMILVLOE, PIN_OUTPUT); + gpio_init(&modemUsbDet, MDMUSBDET, PIN_OUTPUT); + gpio_init(&gpsEn, GPSEN, PIN_OUTPUT); + gpio_init(&gpsRst, GPSRST, PIN_OUTPUT); + gpio_init(&led, LED, PIN_OUTPUT); + gpio_init(&modemRts, MDMRTS, PIN_OUTPUT); + + gpio_write(&led, 0); // LED1: 0=off + gpio_write(&modemRts, 0); // RTS: 0=ready to send + // we start with the gps disabled + gpio_write(&gpsEn, 0); // LDOEN: 1=on,0=off + gpio_write(&gpsRst, 0); // RESET: 0=reset,1=operating + // we start with the modem disabled + gpio_write(&modemLvlOe, 1); // LVLEN: 1=disabled (uart/gpio) + gpio_write(&modemILvlOe, 0); // ILVLEN: 0=disabled (i2c) + gpio_write(&modemUsbDet, 0); // USBDET: 0=disabled + gpio_write(&modemPwrOn, 1); // PWRON: 1=idle, 0=action + gpio_write(&modemEn, 0); // LDOEN: 1=on, 0=off + gpio_write(&modemRst, 0); // RESET: 0=reset, 1=operating + + wait_ms(50); // when USB cable is inserted the interface chip issues + // multiple resets to the target CPU We wait here for a short period to + // prevent those resets from propagating to the modem and other + // components. +}