> Am 15.11.2017 um 09:40 schrieb Belisko Marek <marek.beli...@gmail.com>: > > Hi Nikolaus, > > On Wed, Nov 15, 2017 at 9:01 AM, H. Nikolaus Schaller <h...@goldelico.com> > wrote: >> Hi Marek, >> >>> Am 15.11.2017 um 08:46 schrieb Belisko Marek <marek.beli...@gmail.com>: >>> >>> Hi Nikolaus, >>> >>> On Tue, Nov 14, 2017 at 5:33 PM, H. Nikolaus Schaller <h...@goldelico.com> >>> wrote: >>>> Hi Marek, >>>> this are nice findings! >>>> >>>> Did I understand all that correctly that one just needs some 3.3V >>>> compatible UART plus host software? >>>> >>>> The FST-01 hardware has three connector pads for >>>> * GND >>>> * SWCLK >>>> * SWDIO >>>> >>>> where it is expected to connect the ST-link. These pin names look a little >>>> more like I2C than UART. >>>> Or are they dual-function? >>> According other app note: >>> https://www.google.sk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjyzaDIisDXAhVMfxoKHaALBx0QFggmMAA&url=http%3A%2F%2Fwww.st.com%2Fresource%2Fen%2Fapplication_note%2Fcd00167594.pdf&usg=AOvVaw0qX4Dmhs0QSw4vcuN33uhq >>> it looks like there are various pattern how to start bootloader stored >>> in internal ROM (burn in production). >> >> This seems to be very similar to the BOOT options of the OMAP processors. >> One of them is well know to GTA04 users: the AUX button modifies boot >> sequence from NAND-MMC-UART to MMC-NAND-UART. >> >>> So maybe we will just need some >>> jumper and connector to plug usb->uart converter and user can then >>> easily update SW in stm32. >>>> >>>> And do we need to pull up/down some other pin to enable this programming >>>> protocol? > I have at home some STM32 eval board with many uarts so I'll check > what is necessary to have bootloader running and get back with > results.
Fine! In the meantime I found an article in German: https://www.mikrocontroller.net/topic/439156#new They discuss * a 2 EUR ST-Link clone from China * that it is needed to connect GND, SWDIO, SWCLK, sometimes VDD and sometimes RESET But a pure USB-flashing solution would even be better (if possible). BR, Nikolaus >>>> >>>> Generally I'd like to avoid adding costly hardware which is rarely used. >>>> One thing is that it may well make the cost go up to 50€ per key... >>>> And the other is that it needs space making the key bigger. >>> So adding small connector (rx,tx,gnd) + maybe 1 jumper for force >>> bootloader to start shouldn't be so expensive ;) >> >> Yes, that would be easy. Maybe we can use the standard FTDI-6pin UART >> connector like it is used for BeagleBone, Letux Cortex 8, PocketBone etc. >> >> Do you know which pins we have to touch on the STM32F103TB (used by the >> FST-01)? >> The schematics shows BOOT0 and BOOT1 pins both tied to GND. And SWDIO and >> SWCLK are going to jumper. >> >> Or can we even have the boot loader of the STM32F103TB watch USB? >> >> Well, that would be some security risk since a rogue usb driver >> could reflash the crypto firmware without users noticing... >> >> But a solution could be that flashing requires some solder blob on the PCB. >> >> BR and thanks, >> Nikolaus >> >>>> >>>> BR, >>>> Nikolaus >>>> >>> BR, >>> >>> marem >>>>> Am 14.11.2017 um 13:16 schrieb Belisko Marek <marek.beli...@gmail.com>: >>>>> >>>>> Hi, >>>>> >>>>> On Tue, Nov 14, 2017 at 8:55 AM, Belisko Marek <marek.beli...@gmail.com> >>>>> wrote: >>>>>> Hi Nikolaus, >>>>>> >>>>>> On Mon, Nov 13, 2017 at 12:12 PM, H. Nikolaus Schaller >>>>>> <h...@goldelico.com> wrote: >>>>>>> Hi Marek, >>>>>>> >>>>>>>> Am 13.11.2017 um 11:45 schrieb Belisko Marek <marek.beli...@gmail.com>: >>>>>>>> >>>>>>>> On Mon, Nov 13, 2017 at 11:42 AM, Belisko Marek >>>>>>>> <marek.beli...@gmail.com> wrote: >>>>>>>>> Hi, >>>>>>>>> >>>>>>>>> On Mon, Nov 13, 2017 at 8:33 AM, H. Nikolaus Schaller >>>>>>>>> <h...@goldelico.com> wrote: >>>>>>>>>> Hi all, >>>>>>>>>> >>>>>>>>>>> Am 04.11.2017 um 22:17 schrieb Niels <n...@maclisp.org>: >>>>>>>>>>> >>>>>>>>>>> "H. Nikolaus Schaller" <h...@goldelico.com> writes: >>>>>>>>>>> >>>>>>>>>>>> Hi Paul, >>>>>>>>>>>> >>>>>>>>>>>>> Am 03.11.2017 um 13:06 schrieb Paul Boddie <p...@boddie.org.uk>: >>>>>>>>>>>>> >>>>>>>>>>>>> On Friday 3. November 2017 10.54.44 H. Nikolaus Schaller wrote: >>>>>>>>>>>>>>> Am 03.11.2017 um 10:32 schrieb Thomas Munker <t.mun...@gmx.net>: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> i would like to see some small cryptographic hardware, like eg. >>>>>>>>>>>>>>> yubikey. >>>>>>>>>>>>>>> At best easy interfaceable to gta02/gta04 or with necessary >>>>>>>>>>>>>>> interface >>>>>>>>>>>>>>> hardware >>>>>>>>>>>>>> >>>>>>>>>>>>>> I have checked what they have: >>>>>>>>>>>>>> >>>>>>>>>>>>>> https://www.yubico.com/product/yubikey-4-series/ >>>>>>>>>>>>>> <https://www.yubico.com/product/yubikey-4-series/> >>>>>>>>>>>>>> >>>>>>>>>>>>>> It seems they offer USB-A and USB-C. So neither Mini nor >>>>>>>>>>>>>> Micro-USB. So it >>>>>>>>>>>>>> needs a proper adapter. >>>>>>>>>>>>> >>>>>>>>>>>>> There is an article on LWN.net about these devices and others: >>>>>>>>>>>>> >>>>>>>>>>>>> https://lwn.net/Articles/736231/ >>>>>>>>>>>>> >>>>>>>>>>>>> It covers the Yubikey NEO and Yubikey 4 plus the Nitrokey Pro and >>>>>>>>>>>>> FST-01. >>>>>>>>>>>> >>>>>>>>>>>> Interesting reading! >>>>>>>>>>>> >>>>>>>>>>>> To me it looks as if it would best fit our community to simply >>>>>>>>>>>> build >>>>>>>>>>>> enough FST-01 units, so that they are not out of stock... >>>>>>>>>>>> >>>>>>>>>>>> Everything is said to be free and open, even if the device isn't >>>>>>>>>>>> the fastest one: >>>>>>>>>>>> >>>>>>>>>>>> https://github.com/vinaebizs/fst-01 >>>>>>>>>>>> https://raw.githubusercontent.com/SeeedDocument/FST-01/master/img/Fst-01-schematic.png >>>>>>>>>>>> >>>>>>>>>>>> So it looks not very difficult to have them produced and stocked >>>>>>>>>>>> by us at >>>>>>>>>>>> a reasonable price. >>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> I agree. >>>>>>>>>>> >>>>>>>>>>> I have been wanting a FST-01 for a while, but not found any place to >>>>>>>>>>> buy one. >>>>>>>>>> >>>>>>>>>> I have studied the schematics and it will take less than 1 day to >>>>>>>>>> prepare for >>>>>>>>>> producing some clone... >>>>>>>>>> >>>>>>>>>> Cost is also reasonable, e.g. something below 30€ seems feasible for >>>>>>>>>> tiny >>>>>>>>>> quantities (if produced in batches of 10). So it is possible to >>>>>>>>>> provide >>>>>>>>>> permanent supply. >>>>>>>>>> >>>>>>>>>> What I understood is that it needs some flashing tool to be >>>>>>>>>> connected to >>>>>>>>>> a jumper. Maybe someone can elaborate this. >>>>>>>>>> >>>>>>>>>> One thing is to be discussed about the USB interface: >>>>>>>>>> >>>>>>>>>> Should we keep the USB-A plug or try to replace it by an Mini-USB-A >>>>>>>>>> so that >>>>>>>>>> it can be directly plugged into a GTA0x? >>>>>>>>>> >>>>>>>>>> Or even 3 variants with Standard-USB, MiniUSB and µUSB? Or does >>>>>>>>>> someone have >>>>>>>>>> an idea if multiple sockets are feasible? >>>>>>>>>> >>>>>>>>>> USB-C makes no sense IMHO, because then a much faster processor with >>>>>>>>>> USB3 speed >>>>>>>>>> should be used... This would be a completely different project. >>>>>>>>>> >>>>>>>>>> So what can be the next steps? >>>>>>>>>> * I await your comments and comments about being interested >>>>>>>>>> * maybe someone should take care about the programming procedures >>>>>>>>> I have experience with programming stm32 (there exists stm32uart >>>>>>>>> utility which can burn SW) but in this case I'm unsure. >>>>>>>>> Does stm32 boot from external spi flash or external spi flash is used >>>>>>>>> for something else? >>>>>>>> In meantime I found that it's possible via ST-link only: >>>>>>>> http://wiki.seeed.cc/FST-01/ >>>>>>>> also here: >>>>>>>> http://www.gniibe.org/memo/development/fst-01/dongle/fst-01-swd-connection.html >>>>>>>> so if we do new design maybe would be good to add for user possibility >>>>>>>> to update FW. >>>>>>> >>>>>>> Nice finding! >>>>>>> >>>>>>> Well, this would mean that we have to clone the ST-link device (where I >>>>>>> have not >>>>>>> yet an idea what is inside) and add another USB socket. >>>>>>> >>>>>>> But there seem to be clones: >>>>>>> >>>>>>> https://www.gearbest.com/development-boards/pp_62989.html?currency=EUR&vip=2275155&gclid=CjwKCAiAoqXQBRA8EiwAIIOWstP9pf8EWlN1SaHyGVUZzDDjkmMVt329W6Misb_BTv_HxOqSr28UMxoCQ_8QAvD_BwE >>>>>> We can use stm32 serial bootloader which should be present in any >>>>>> stm32. Here is application note: >>>>>> http://www.st.com/content/ccc/resource/technical/document/application_note/51/5f/03/1e/bd/9b/45/be/CD00264342.pdf/files/CD00264342.pdf/jcr:content/translations/en.CD00264342.pdf >>>>>> and also here is small program which can be used to burn image to >>>>>> stm32 via serial bootloader: https://github.com/jsnyder/stm32ld >>>>> And we can also use FOSS solution (from same guy who did FST-01) : >>>>> https://www.hackster.io/gniibe/bbg-swd-93bcea >>>>>> >>>>>> So we don't need ST-link programmed/debugger ;). >>>>>>> >>>>>>> Hm. Well, the ST-Link device is another Microcontroller with built-in >>>>>>> firmware. >>>>>>> So how do we flash that :) > BR, > > marek > _______________________________________________ > Community mailing list > Community@tinkerphones.org > http://lists.goldelico.com/mailman/listinfo.cgi/community > http://www.tinkerphones.org _______________________________________________ Community mailing list Community@tinkerphones.org http://lists.goldelico.com/mailman/listinfo.cgi/community http://www.tinkerphones.org
