1 files changed, 12 insertions, 1 deletions
diff --git a/software/hhd70dongle/c1101lib.c b/software/hhd70dongle/c1101lib.c
index 7c309cd..d19f8d4 100644
--- a/software/hhd70dongle/c1101lib.c
+++ b/software/hhd70dongle/c1101lib.c
@@ -223,8 +223,11 @@ void c1101_init(void)
     // MDMCFGn       Modem Configuration
     c1101_spi_write_register(SPIC1101_ADDR_MDMCFG4, 0xF8);
     c1101_spi_write_register(SPIC1101_ADDR_MDMCFG3, 0x83);
-    c1101_spi_write_register(SPIC1101_ADDR_MDMCFG2, 0x13);
+    c1101_spi_write_register(SPIC1101_ADDR_MDMCFG2, 0x12); //gfsk, 15/16 sync word
     c1101_spi_write_register(SPIC1101_ADDR_MDMCFG1, 0x00);
+    //Sync Word
+    c1101_spi_write_register(SPIC1101_ADDR_SYNC1, 0x21);
+    c1101_spi_write_register(SPIC1101_ADDR_SYNC0, 0x42);
     // DEVIATN       Modem Deviation Setting
     c1101_spi_write_register(SPIC1101_ADDR_DEVIATN, 0x07);
     // MCSM0         Main Radio Control State Machine Configuration
@@ -416,6 +419,14 @@ void c1101_transmitData(char *buffer, unsigned int len)
     } while (len > 0);
 
     //disable Power Amplifier
+    //FIXME, instead use PTT function of GPO0 -> interrupt handler -> toggle rx/tx
+    //wait until RX finished
+    do
+    {
+        c1101_state = c1101_getMARCState();
+        _delay_ms(1);
+    }
+    while (c1101_state == 19 || c1101_state == 20);
     hhd70_palna_rxmode();
 }