[WP-34S] Cable and flashing options for Mac users

[Marcus von Cube]

(01-19-2015 06:50 PM)John Galt Wrote:  In one of my attempts I tried sending the binary file using Markus Schmid's ZOC at 9600 baud. It repeatedly stalls at about 31% after which his program froze, leaving the open port in an unknown state. It's an otherwise excellent program, but things like this leave me skeptical.

I'll try again at 115 kbps but if MySamba (and wp34sflash) are required to provide intelligent responses to queries from the WP34s then I obviously can't simply use a terminal emulator to flash the unit.

No chance! The SAM-BA boot loader knows some commands to modify RAM and start code. That's what both MySamba and the Atmel SAM-BA software do: They download code to RAM and then let it do all the "dirty work". The main difference between MySamba (and its siblings) and SAM-BA from Atmel is the downloaded code. The smart HP people (I assume mainly Cyrille) just wrote a flashing algorithm that is a factor 10 faster than what Atmel provides.