turn on insert ack packet by default

cpu/mc1322x/lib/maca.c

@@ -72,6 +72,10 @@
 #define CPL_TIMEOUT (2*128*CLK_PER_BYTE) 
 #endif
 
+#ifndef MACA_INSERT_ACK
+#define MACA_INSERT_ACK 1
+#endif
+
 #define reg(x) (*(volatile uint32_t *)(x))
 
 int count_packets(void);

platform/redbee-econotag/contiki-conf.h

@@ -85,6 +85,7 @@
 #define USE_32KHZ_XTAL              0
 
 #define BLOCKING_TX 1
+#define MACA_AUTOACK 1
 #define NULLRDC_CONF_802154_AUTOACK_HW 1
 
 #define USE_WDT 0