From 9b1ebc560185d03c930deac98fd7a9a06aac58fc Mon Sep 17 00:00:00 2001
From: Bernhard Tittelbach <xro@realraum.at>
Date: Sun, 20 May 2012 02:06:35 +0000
Subject: found a 'datasheet' for hhd70, thus exchanged RE/TE

git-svn-id: https://svn.spreadspace.org/mur.sat@445 7de4ea59-55d0-425e-a1af-a3118ea81d4c
---
 software/hhd70dongle/c1101lib.c |  6 ++----
 software/hhd70dongle/hhd70.c    | 21 +++++++++------------
 software/hhd70dongle/hhd70.h    |  9 ++++-----
 3 files changed, 15 insertions(+), 21 deletions(-)

diff --git a/software/hhd70dongle/c1101lib.c b/software/hhd70dongle/c1101lib.c
index 02ec5fc..1c60727 100644
--- a/software/hhd70dongle/c1101lib.c
+++ b/software/hhd70dongle/c1101lib.c
@@ -384,8 +384,7 @@ void c1101_transmitData(char *buffer, unsigned int len)
     //~ usb_rawhid_send(debug_sb,255);
 
     //enable Power Amplifier
-    hhd70_lna_disable();
-    hhd70_pa_enable();
+    hhd70_palna_txmode();
 
     //keep buffer filled
     uint8_t c1101_state=0;
@@ -416,8 +415,7 @@ void c1101_transmitData(char *buffer, unsigned int len)
     } while (len > 0);
 
     //disable Power Amplifier
-    hhd70_pa_disable();
-    hhd70_lna_enable();
+    hhd70_palna_rxmode();
 }
 
 void c1101_recieveData(void)
diff --git a/software/hhd70dongle/hhd70.c b/software/hhd70dongle/hhd70.c
index 2d4ff93..359d754 100644
--- a/software/hhd70dongle/hhd70.c
+++ b/software/hhd70dongle/hhd70.c
@@ -36,10 +36,10 @@
 void hhd70_init(void)
 {
     //configure Direction of SS / PB0 , MOSI and SCLK as Output to drive CS of CC1101
-    SPI_PORT = (1<<CS);
     SPI_DDR = (1<<MOSI)|(1<<SCK)|(1<<CS)|(1<<RE)|(1<<TE);
+    SPI_PORT = (1<<CS) | (1<<RE) | (1<<TE);        
     SPCR = (1<<SPE)|(1<<MSTR); // | (0<<DORD)  //select MSB first: DORD == 0
-    // SPSR = (0<<SPI2X) // f_osc/4 
+    // SPSR = (0<<SPI2X) // f_osc/4
     // SPSR = (1<<SPI2X) // f_osc/2
     //  SPSR = (1<<SPI2X); (4MHz vs. 8MHz)
 }
@@ -89,24 +89,21 @@ char hhd70_spi_read_byte(void)
     return hhd70_spi_exchange_byte(0);
 }
 
-void hhd70_pa_enable(void)
-{
-    SPI_PORT |= ~(1<<TE);
-}
-
-void hhd70_pa_disable(void)
+void hhd70_palna_txmode(void)
 {
+    SPI_PORT |= (1<<RE);
     SPI_PORT &= ~(1<<TE);
 }
 
-void hhd70_lna_enable(void)
+void hhd70_palna_rxmode(void)
 {
-    SPI_PORT |= ~(1<<RE);
+    SPI_PORT |= (1<<TE);
+    SPI_PORT &= ~(1<<RE);
 }
 
-void hhd70_lna_disable(void)
+void hhd70_palna_off(void)
 {
-    SPI_PORT &= ~(1<<RE);
+    SPI_PORT |= (1<<RE) | (1<<TE);
 }
 
 int8_t hhd70_rx_data_available(void)
diff --git a/software/hhd70dongle/hhd70.h b/software/hhd70dongle/hhd70.h
index 5153fd6..a3df36a 100644
--- a/software/hhd70dongle/hhd70.h
+++ b/software/hhd70dongle/hhd70.h
@@ -24,7 +24,7 @@
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
- *
+ *;
  *  You should have received a copy of the GNU General Public License
  *  along with mur.sat. If not, see <http://www.gnu.org/licenses/>.
  *
@@ -53,10 +53,9 @@ void hhd70_c1101_wait_chip_rdy(void);
 void hhd70_spi_write_byte(char byte);
 char hhd70_spi_read_byte(void);
 char hhd70_spi_exchange_byte(char byte);
-void hhd70_pa_enable(void);
-void hhd70_pa_disable(void);
-void hhd70_lna_enable(void);
-void hhd70_lna_disable(void);
+void hhd70_palna_txmode(void);
+void hhd70_palna_rxmode(void);
+void hhd70_palna_off(void);
 int8_t hhd70_rx_data_available(void);
 
 #endif
-- 
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