[tuxdroid-svn] r1329 - firmware/tuxaudio/trunk

[jaguarondi <c2m...@c2...>]

Author: jaguarondi
Date: 2008-07-16 10:26:54 +0200 (Wed, 16 Jul 2008)
New Revision: 1329

Modified:
   firmware/tuxaudio/trunk/PC_communication.c
Log:
* Dirty hack when an ACK is never received, resend the command. This problem
  doesn't seem to appear with the new RF so this is just a temporary solution.


Modified: firmware/tuxaudio/trunk/PC_communication.c
===================================================================
--- firmware/tuxaudio/trunk/PC_communication.c	2008-07-16 08:14:37 UTC (rev 1328)
+++ firmware/tuxaudio/trunk/PC_communication.c	2008-07-16 08:26:54 UTC (rev 1329)
@@ -54,6 +54,7 @@
                 spi_ready = 0;
                 if (spi_slave == HEADERS)
                 {
+                    uint8_t static force_resend = 0;
                     /* Sound */
                     if (FifoLength(ADCFifo) >= 17)
                         spi_headerb = 0x02;     /* frame will contain sound */
@@ -67,8 +68,18 @@
                         spi_headerb |= 0x08;    /* resend the previous status if nacked */
                     }
                     else if (rf_data_sent_ack != RF_DATA_SENT_BUSY)     /* wait the end of transmission */
+                    {
                         if (!popStatus(spi_commandTX))  /* fetch the next status */
                             spi_headerb |= 0x08;        /* indicate that the frame contains status */
+                    }
+                    else
+                    {
+                        if (++force_resend == 20)
+                        {
+                            force_resend = 0;
+                            spi_headerb |= 0x08;    /* resend the previous status if nacked */
+                        }
+                    }
 
                     SPDR = spi_headerb; // Header byte
                     spi_slave = GET_SOUND_FIFO; // Next state