07:07 <PaulFertser> https://community.st.com/t5/stm32cubeide-mcus/cubeide-forcing-you-to-login-to-st-is-complete/td-p/581907

07:12 <PaulFertser> Not a _single_ user happy and yet instead of reverting the stupidity ST carries on.

13:55 <zapb_> PaulFertser, it's not only ST unfortunately...

14:12 <Haohmaru> huh?

14:12 <Haohmaru> does that apply to "cubemx" ?

14:48 <Hammdist22> does JTAG programming of FPGAs have any rate limiting that the target device can enforce? or must it accept data at whatever rate with no choice?

14:58 <Haohmaru> doesn't that FPGA have a datasheet with "characteristics"

15:00 <Hammdist22> the FPGA datasheets do not spell out the programming protocol. it is basically only known from RE and documented basically by way of the openocd source code. the datasheets might give the maximum JTAG clock speed, but I'm asking if there is a protocol-level "brake" that can be applied on top of that by the device

15:01 <Hammdist22> ecppack generates a "svf" that is programmed using openocd

15:02 <Hammdist22> basically I'd like to know if that just says "output these bits" or there are wait for a certain duration or signal commands in there

15:05 <Hammdist22> such a thing is indispensable when programming FLASH but not clear how it relates to FPGA SRAM

15:09 <cambrian_invader> the JTAG protocol itself runs as fast a TCK, but of course the datasheet will specify that limit

15:10 <cambrian_invader> however, if there is e.g. internal flash to program, then typically you will e.g. transfer a page and then poll a busy flag until the flash is programmed

15:10 <Hammdist22> from the wikipedia page on svf it seems there is no "braking" supported in svf level. so it is probably the former case

15:10 <cambrian_invader> svf supports "braking"

15:11 <Hammdist22> oh really? drats

15:11 <cambrian_invader> you can repeatedly transfer out a data register until you get a value matching a mask

15:13 <Hammdist22> m'kay

15:19 <cambrian_invader> although looking at some svfs I have it seems like they just do runtest idle to delay

15:20 <cambrian_invader> so maybe I'm misremembering

15:26 <Hammdist22> any place I can get the svf spec without paying/registering?

15:27 <Hammdist22> ah found the pdf

15:38 <Hammdist22> does openocd have anything like a virtual JTAG interface? that could, e.g., dump TDO/TMS to a file?

15:43 <Hammdist22> dummy.c appears to be closest to what I'm looking for but looks like it will need some modifications