Diff: mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/TARGET_UBLOX_C030/onboard_modem_api.c

Revision:

0:bb348c97df44

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/TARGET_UBLOX_C030/onboard_modem_api.c	Wed Sep 16 01:11:49 2020 +0000
@@ -0,0 +1,83 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if MBED_CONF_NSAPI_PRESENT
+
+#include "onboard_modem_api.h"
+#include "gpio_api.h"
+#include "platform/mbed_wait_api.h"
+#include "PinNames.h"
+
+#if MODEM_ON_BOARD
+
+// Note microseconds not milliseconds
+static void press_power_button(int time_us)
+{
+    gpio_t gpio;
+
+#if defined(TARGET_UBLOX_C030_R410M)
+    gpio_init_inout(&gpio, MDMPWRON, PIN_OUTPUT, OpenDrain, 0);
+#else
+    gpio_init_out_ex(&gpio, MDMPWRON, 0);
+#endif
+
+    wait_us(time_us);
+    gpio_write(&gpio, 1);
+}
+
+void onboard_modem_init()
+{
+    gpio_t gpio;
+
+    // Take us out of reset
+    gpio_init_out_ex(&gpio, MDMRST,    1);
+}
+
+void onboard_modem_deinit()
+{
+    gpio_t gpio;
+
+    // Back into reset
+    gpio_init_out_ex(&gpio, MDMRST, 0);
+}
+
+void onboard_modem_power_up()
+{
+#if defined(TARGET_UBLOX_C030_R410M)
+	/* keep the power line low for 1 seconds */
+    press_power_button(1000000);
+#else
+	/* keep the power line low for 50 microseconds */
+    press_power_button(50);
+#endif
+
+    /* give modem a little time to respond */
+    wait_ms(100);
+}
+
+void onboard_modem_power_down()
+{
+#if defined(TARGET_UBLOX_C030_R410M)
+	/* keep the power line low for 1.5 seconds */
+    press_power_button(1500000);
+#else
+	/* keep the power line low for 1 seconds */
+    press_power_button(1000000);
+#endif
+}
+
+#endif //MODEM_ON_BOARD
+#endif //MBED_CONF_NSAPI_PRESENT