TX test

git-svn-id: https://svn.spreadspace.org/mur.sat@430 7de4ea59-55d0-425e-a1af-a3118ea81d4c

1 files changed, 24 insertions, 4 deletions

diff --git a/software/hhd70dongle/c1101lib.c b/software/hhd70dongle/c1101lib.c
index 3ccd86b..60a3b4d 100644
--- a/software/hhd70dongle/c1101lib.c
+++ b/software/hhd70dongle/c1101lib.c
@@ -299,13 +299,33 @@ char c1101_getStatus(void)
 }
 
 
-//max len: 64 bytes
-void c1101_writeTXFifo(char *buffer, unsigned int len)
+void c1101_transmitData(char *buffer, unsigned int len)
 {
     //check TXBYTES.NUM_TXBYTES
     // never write more bytes than avaiblabe or doom ensues
-
-
+    uint8_t num_written = 0;
+    uint8_t mcsm1 = spi_c1101_read_register(SPIC1101_ADDR_MCSM1);
+    //configure state machine to automatically go to IDLE, once packet was transmitted
+    mcsm1 = (mcsm1 & 0b11111100) | 0b00;
+    spi_c1101_write_register(SPIC1101_ADDR_MCSM1, 0x18);
+    //fill buffer
+    do
+    {
+        num_written = spi_c1101_write_txfifo(buffer, len);
+        buffer += num_written;
+        len -= num_written;
+    } while (num_written > 0);
+    //start transmitting
+    spi_c1101_strobe_command(SPIC1101_ADDR_STX);
+    //keep buffer filled
+    do
+    {
+        num_written = spi_c1101_write_txfifo(buffer, len);
+        buffer += num_written;
+        len -= num_written;
+        if (num_written == 0 && len > 0)
+            _delay_ms(1);
+    } while (len > 0);
 }
 
 //max returned: 64 bytes