[casper] Any experience with the katcp-C interface?

[Ryan Monroe]

Hey all,

I'm trying to read/write to ROACH registers and shared_memory elements 
directly from C.  I can read registers correctly, but writing seems to 
have no effect.  Can anyone who has a bit more experience show me what 
I'm doing wrong?  Thanks!

(read command which works)
  result = send_rpc_katcl(l, 5000, KATCP_FLAG_FIRST | KATCP_FLAG_STRING 
, "?write", KATCP_FLAG_STRING, regName, KATCP_FLAG_STRING, "0", 
KATCP_FLAG_LAST|KATCP_FLAG_ULONG, 0,NULL);

(write command which fails quietly)
  result = send_rpc_katcl(l, 5000, KATCP_FLAG_FIRST | KATCP_FLAG_STRING 
, "?write", KATCP_FLAG_STRING, regName, KATCP_FLAG_STRING, "0", 
KATCP_FLAG_LAST|KATCP_FLAG_ULONG, 0,NULL);


--Ryan Monroe