Diff: main.cpp

Revision:

0:6ca6723bc32e

Child:

1:3ced3cedee8f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 13 08:26:52 2018 +0000
@@ -0,0 +1,58 @@
+#include "mbed.h"
+#include "SEGGER_RTT.h"
+
+DigitalOut gsm_on(p6);
+DigitalOut gsm_pwrkey(p15);
+
+void gsm_pwr_on();
+void gsm_boot();
+void check_gsm();
+// main() runs in its own thread in the OS
+
+Serial gsm(p20, p12); // tx, rx
+
+void callback_ex()
+{
+    // Note: you need to actually read from the serial to clear the RX interrupt
+    while(10) {
+        SEGGER_RTT_printf(0, "content from serial :: %c \n", gsm.getc());
+    }
+}
+
+int main()
+{
+    gsm.baud(9600);
+    gsm.attach(&callback_ex);
+
+    SEGGER_RTT_printf(0, "POWERING GSM Module \n");
+    gsm_pwr_on();
+    SEGGER_RTT_printf(0, "INITIATING GSM MODULE bootup \n");
+    gsm_boot();
+    SEGGER_RTT_printf(0, "GSM power up sequence complete...check LED1 \n");
+    wait(30);
+    for(int i=0; i<5; i++) check_gsm();
+
+}
+
+void gsm_pwr_on()
+{
+    gsm_on = 0;
+    wait_ms(200);
+    gsm_on = 1;
+    wait_ms(200);
+}
+
+void gsm_boot()
+{
+    gsm_pwrkey = 0;
+    wait(2.0);
+    gsm_pwrkey = 1;
+    wait(1.0);
+}
+
+void check_gsm()
+{
+    SEGGER_RTT_printf(0, "send ATI command to check GSM module \n");
+    gsm.printf("ATI\r\n");
+    wait(1);
+}
\ No newline at end of file