FreeCalypso > hg > freecalypso-tools
comparison doc/Loadtools-performance @ 611:c847d742ab38
doc/Loadtools-performance: article started
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 24 Feb 2020 21:44:13 +0000 |
| parents | |
| children | ab4021fb1c66 |
comparison
equal
deleted
inserted
replaced
| 610:98474043ecdd | 611:c847d742ab38 |
|---|---|
| 1 Here are the expected run times for the flash dump2bin operation of dumping the | |
| 2 entire flash content of a Calypso GSM device: | |
| 3 | |
| 4 Dump of 4 MiB flash (e.g., Openmoko GTA01/02 or Mot C139/140) at 115200 baud: | |
| 5 12m53s | |
| 6 | |
| 7 The same 4 MiB flash dump at 812500 baud: 1m50s | |
| 8 | |
| 9 Dump of 8 MiB flash (e.g., Mot C155/156) at 812500 baud: 3m40s | |
| 10 | |
| 11 Because of the architecture of fc-loadtool and its loadagent back-end, the run | |
| 12 time of a flash dump operation depends only on the serial baud rate and the | |
| 13 size of the flash area to be dumped; it should not depend on the USB-serial | |
| 14 adapter type or any host system properties, as long as the host system and | |
| 15 serial adapter combination supports the desired baud rate. In contrast, flash | |
| 16 programming and fc-xram loading operations are quite different in that their | |
| 17 run times do depend on the host system and USB-serial adapter or other serial | |
| 18 port hardware - this host system dependency exists because of the way these | |
| 19 operations are implemented in our architecture. | |
| 20 | |
| 21 [To be continued] |