m2 ifdefs / gps dev

myj-dev · Jan 19, 2014 · a7ff727 · a7ff727
1 parent 393ceea
commit a7ff727
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Showing 3 changed files with 21 additions and 0 deletions.
diff --git a/cpp/M2tk.h b/cpp/M2tk.h
@@ -21,6 +21,9 @@
 
 */
 
+#ifndef _M2TK_H
+#define _M2TK_H
+
 #include "m2.h"
 
 class M2tk
@@ -43,3 +46,5 @@ class M2tk
     m2_rom_void_p getRoot() { return m2_GetRoot(); }    
 };
 
+#endif
+
diff --git a/sys/arm_u8g/gps/config.h b/sys/arm_u8g/gps/config.h
@@ -43,5 +43,9 @@
 */
 #define USE_GPS_4800BAUD
 
+/*
+  Define this to generate a LOW_HIGH_LOW Pulse on PIO1_5
+*/
+#define USE_LOW_HIGH_LOW_PULSE
 
 #endif
diff --git a/sys/arm_u8g/gps/init.c b/sys/arm_u8g/gps/init.c
@@ -30,6 +30,7 @@
 #include "uart.h"
 #include "init.h"
 #include "exmem.h"
+#include "config.h"
 
 
 /*========================================================================*/
@@ -224,6 +225,17 @@ void gps_init(void)
   /* init uart, connect uart to gps parser */
   UART_Init(1, gps_rx);
 
+#ifdef USE_LOW_HIGH_LOW_PULSE
+  /* generate high pulse on PIO1_5 */
+  set_gpio_mode(PIN(1,5), 1, 0);
+
+  set_gpio_level(PIN(1,5), 0);
+  delay_micro_seconds(1*1000*1000);	/* wait 1 second */
+  set_gpio_level(PIN(1,5), 1);
+  delay_micro_seconds(200*1000);	/* wait 200ms second */
+  set_gpio_level(PIN(1,5), 0);
+#endif
+
   /* check for external memory */
   check_ExternalMemory();