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File transfer speed tests

OpenOCD r520, parport vs. USB JTAG adapters

Downloading 128kB from PC to HP20B

^Adapter    ^DCC enabled?     ^jtag_speed       ^Elapsed time^
|evb_lm3s811   |no   |0x80    |79.78s |
|evb_lm3s811   |no   |0x40    |42.56s |
|evb_lm3s811   |no   |0x20    |23.84s |
|evb_lm3s811   |no   |0x10    |14.66s |
|evb_lm3s811   |no   |0x8    |10.05s |
|evb_lm3s811   |no   |0x4    |9.52s |
|evb_lm3s811   |no   |0x2    |7.19s |
|evb_lm3s811   |no   |0x1    |6.53s |
|evb_lm3s811   |no   |0x0    |5.91s |
|evb_lm3s811   |yes   |0x80    |20.44s |
|evb_lm3s811   |yes   |0x40    |18.61s |
|evb_lm3s811   |yes   |0x20    |9.70s |
|evb_lm3s811   |yes   |0x10    |5.22s |
|evb_lm3s811   |yes   |0x8    |3.03s |
|evb_lm3s811   |yes   |0x4    |1.88s |
|evb_lm3s811   |yes   |0x2    |1.42s |
|evb_lm3s811   |yes   |0x1    |1.23s |
|evb_lm3s811   |yes   |0x0    |1.02s |
|wiggler      |no    |0x8    |136.69s |
|wiggler      |no    |0x4    |76.20s |
|wiggler      |no    |0x2    |46.27s |
|wiggler      |no    |0x1    |31.48s |
|wiggler      |no    |0x0    |16.73s |
|wiggler      |yes    |0x8    |70.56s |
|wiggler      |yes    |0x4    |39.48s |
|wiggler      |yes    |0x2    |23.78s |
|wiggler      |yes    |0x1    |16.16s |
|wiggler      |yes    |0x0    |8.40s |


Uploading 128kB from HP20B to PC

^Adapter       ^jtag_speed       ^Elapsed time^
|evb_lm3s811   |0x80    |81.12s |
|evb_lm3s811   |0x40    |44.52s |
|evb_lm3s811   |0x20    |26.08s |
|evb_lm3s811   |0x10    |15.52s |
|evb_lm3s811   |0x8    |11.61s |
|evb_lm3s811   |0x4    |8.91s |
|evb_lm3s811   |0x2    |8.36s |
|evb_lm3s811   |0x1    |8.19s |
|evb_lm3s811   |0x0    |7.78s |
|wiggler       |0x1     |33.98s |
|wiggler       |0x0     |18.97s |

Conclusions?  USB adapters are much quicker, especially on a slow PC such as mine.
OpenOCD's DCC download option gives a nice speed boost.
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