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Stefano Antoniazzi

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  1. Is there a way to share the HS3 dongle (through the dmrg and djtg API DLLs) among multiple Windows processes?
  2. I'm using the USB-JTAG HS3 dongle as JTAG interface to our proprietary systems. I implemented JTAG transactions for reading and writing registers on top of the HS3 Adept API. This works fine but I noticed that there is always a time gap between transactions I can not reduce. More precisely, I can reduce it using large blocks in batch mode but this is not suitable for many individual register read/write ops. In fact, the actual data speed looks more than 10x slower than the JTAG frequency. At 15 MHz JTAG I can only perform about 7000 transactions (each one takes about 100 TCK clock cycles). I can not believe it is just SW overhead. Is there any reason for that? Is there a way to reduce the gaps?
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