Hi Martin,

I don’t fully understand you comment about it not being the block controller. 
(bear with as I am not super experienced)

At the moment I have not trapped a timeout exception just yet (see snippet 
below).  It could well be somewhere else in the application as you say.

---

```
        try
```

```
        {
```

```
            lock_mutex();
```

```
            // Write to the calculated address
```

```
            siggen_block->regs().poke32(address, data->data[0]);
```

```
            unlock_mutex();
```

```
            lnx_uhd_status = true;
```

```
        }
```

```
        catch(const uhd::op_timeout& e)
```

```
        {
```

```
            std::cerr << "Write exception: " <<  e.what() << '\n';
```

```
        }
```

```
        catch(const std::exception& e)
```

```
        {
```

```
            std::cerr << "Write exception: " <<  e.what() << '\n';
```

```
            unlock_mutex();
```

```
        }
```

---

If you don’t mind, regarding David’s email above (points 2 and 3) could you 
comment on these

For point 2. this makes sense to me, would you also recommend the same?

for point 3.  After setting up the LO, I am checking the lock flags in a loop 
with a time-out, after which I clear the command time:-     
radio_ctrl\[radio_id\]->clear_command_time(0);  

Thank you for your time.

cheers,

Marino
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