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Merge pull request #10530 from wajahat-ublox/c027_modem_flag 

C027 Fix for modemOn flag
pull/10567/head
Martin Kojtal 2019-05-10 11:10:03 +01:00 committed by GitHub
parent 2f1338b89f fd0a2c7e29
commit 7a29e02fe0
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 3 deletions
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11
targets/TARGET_NXP/TARGET_LPC176X/TARGET_UBLOX_C027/ublox_low_level_api.c
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@ -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)
}
}
}
@ -78,13 +80,13 @@ 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;
}
}
@ -92,11 +94,13 @@ 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)
}
}
}
@ -104,6 +108,7 @@ 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
}