Update fmc-dio doc

9ca19cac · Jorge Machado · 5982b79c · 9ca19cac
Commit 9ca19cac authored Oct 08, 2020 by Jorge Machado
Hide whitespace changes
Inline Side-by-side

Showing with 6 additions and 5 deletions

fmc-dio.in doc/fmc-dio.in +6 -5

No files found.
--- a/doc/fmc-dio.in
+++ b/doc/fmc-dio.in
@@ -545,11 +545,12 @@ This is the list of supported modes for channels:

 The new hardware pulse generation feature allows to configure a pulse train with a higher 
 frequency than the previous version. However, there is still a software limitation due to the 
-interrupts handling. If the interrupt of the channel is disabled, the pulse train generation 
-will be indefinite because the pulse counting mechanism remains excecuted in the sofware interrupt 
-handler. This frequency should be controlled in a proper way just to avoid PC freezing.
-Because of this, the maximum frequency depends on your current machine configuration and can be 
-easily characterized with the existing tools for fmc-dio project.
+interrupts handling. If the interrupt of the channel is disabled, the pulse train generation can 
+be as fast as the reference clock period allows, but there will be no timestamps in the FIFO and 
+the pulse train will be indefinite because the pulse counting mechanism remains excecuted in the 
+sofware interrupt handler. This frequency should be controlled in a proper way just to avoid PC 
+freezing. Because of this, the maximum frequency depends on your current machine configuration 
+and can be easily characterized with the existing tools for fmc-dio project.

 There is no command to flush the timestamp FIFOs, but you can
 always ``@code{wr-dio-cmd stamp > /dev/null}'' if needed.