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C027 Fix for modemOn flag #10530

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merged 1 commit into from
May 10, 2019
Merged

C027 Fix for modemOn flag #10530

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11 changes: 8 additions & 3 deletions targets/TARGET_NXP/TARGET_LPC176X/TARGET_UBLOX_C027/ublox_low_level_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -59,12 +59,14 @@ void ublox_mdm_powerOn(int usb)
// turn on the mode by enabling power with power on pin low and correct USB detect level
gpio_init_out_ex(&gpio, MDMUSBDET, usb ? 1 : 0); // USBDET: 0=disabled, 1=enabled
if (!modemOn) { // enable modem
modemOn = true;
gpio_init_out_ex(&gpio, MDMEN, 1); // LDOEN: 1=on
wait_ms(1); // wait until supply switched off
// now we can safely enable the level shifters
gpio_init_out_ex(&gpio, MDMLVLOE, 0); // LVLEN: 0=enabled (uart/gpio)
if (gpsOn)
if (gpsOn) {
gpio_init_out_ex(&gpio, MDMILVLOE, 1); // ILVLEN: 1=enabled (i2c)
}
}
}

Expand All @@ -78,32 +80,35 @@ void ublox_mdm_powerOff(void)
{
gpio_t gpio;
if (modemOn) {
modemOn = false;
// diable all level shifters
gpio_init_out_ex(&gpio, MDMILVLOE, 0); // ILVLEN: 0=disabled (i2c)
gpio_init_out_ex(&gpio, MDMLVLOE, 1); // LVLEN: 1=disabled (uart/gpio)
gpio_init_out_ex(&gpio,MDMUSBDET, 0); // USBDET: 0=disabled
// now we can savely switch off the ldo
gpio_init_out_ex(&gpio, MDMEN, 0); // LDOEN: 0=off
modemOn = false;
}
}

void ublox_gps_powerOn(void)
{
gpio_t gpio;
if (!gpsOn) {
gpsOn = true;
// switch on power supply
gpio_init_out_ex(&gpio, GPSEN, 1); // LDOEN: 1=on
wait_ms(1); // wait until supply switched off
if (modemOn)
if (modemOn) {
gpio_init_out_ex(&gpio, MDMILVLOE, 1); // ILVLEN: 1=enabled (i2c)
}
}
}

void ublox_gps_powerOff(void)
{
gpio_t gpio;
if (gpsOn) {
gpsOn = false;
gpio_init_out_ex(&gpio, MDMILVLOE, 0); // ILVLEN: 0=disabled (i2c)
gpio_init_out_ex(&gpio, GPSEN, 0); // LDOEN: 0=off
}
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