X-Git-Url: https://git.libre-soc.org/?p=c4m-jtag.git;a=blobdiff_plain;f=sim%2Fcocotb%2Fc4m_jtag.py;h=48d2677cc5920daa1423d4c6cf82d7efaa8f537f;hp=5deb89a1362f05293fecfac467ca24d2baa5b63a;hb=c2d23669441fa7e61fc23e11afec04cdc8cd0544;hpb=70709b539b375a0dc7512b11f90de40e033c2151

diff --git a/sim/cocotb/c4m_jtag.py b/sim/cocotb/c4m_jtag.py
index 5deb89a..48d2677 100644
--- a/sim/cocotb/c4m_jtag.py
+++ b/sim/cocotb/c4m_jtag.py
@@ -84,6 +84,12 @@ class JTAG_Master(object):
 
     @cocotb.coroutine
     def change_state(self, tms_list):
+        """
+        Put TAP in other state by giving a TMS sequence
+        This function does not detect if one ends up in reset or run
+        state afterwards, self.state has to be updated by caller
+        if that is the case.
+        """
         tms_copy = list(tms_list)
         while tms_copy:
             self.tms <= tms_copy.pop()