Changes between Version 61 and Version 62 of library_stdio

Timestamp:

Apr 9, 2015, 5:09:23 PM (9 years ago)

Author:

alain

Comment:

--

library_stdio

@@ -105 +105 @@
  * '''channel''' communication channel index
 
- === 6) void '''giet_coproc_completed'''( unsigned int cluster_xy ) ===
-This blocking function can be used to synchronize a software task with an hardware coprocessor running in DMA mode.
-It polls the ''_coproc_done[x][y]'' kernel variable, and returns only when this variable has been set by the ISR associated to  coprocessor in cluster[x][y]. 
-
+ === 6) void '''giet_coproc_channel_completed'''( unsigned int cluster_xy ,  unsigned int channel  , unsigned int* status ) ===
+This blocking function can be used to synchronize a software task with an hardware coprocessor running in DMA_NO_IRQ mode.
+It polls the status register for a given channel, and returns only when the transfer is completed. It returns in the status variable
+a zero value in case of success. It returns a non zero value in case of bus error. 
+ * '''cluster_xy''' cluster coordinates.
+ * '''channel''' communication channel index
+ * '''status''' : return value (>0 if error)
+:wq
  === 7) void '''giet_coproc_register_set'''( unsigned int cluster_xy ,  unsigned int reg_index ,  unsigned int value ) ===
 This function set a new value in a coprocessor specific register.