In the LPC evaluation boards from Keil, the DTR and RTS signals of COM port are used to enter automatically in the boot mode. It is very convenient (see for example FlashMagic). But why the same approach does not implemented in the STM32 evaluation board? Are there any fundamental restrictions?
Varuzhan
Those features are chip dependant.
LPC has a built-in Boot Loader which can communicate via UART and this feature is used on the Keil LPC boards. But STM32 has no such Boot Loader.
But STM32 has no such Boot Loader. Au contraire, see UM0462 "STM32F101xx and STM32F103xx Flash loader demonstrator" here: www.st.com/.../familiesdocs-110.html
Well, that's a bootloader - but does it work as the OP enquired?
I can't check the link due to problems with the ST website - see: www.8052.com/.../read.phtml
I have noticed, that in all forums are people with hobby to answer just for answer. My question is for competent persons from Keil or others, who know what about is it exactly. STM flash loader demonstrator works well and its work logic is the same as LPC. One need to switch a jumper and push the reset. This operations are very similar, if not the same as for the LPC. So why the Keil board does not support the same convenient service. Varuzhan
If you want answers direct from Keil, then you need to contact Keil support, as stated here: http://www.keil.com/forum/terms.asp - note the 4th Bullet point.
Hi Andy,
Thank you very much. Several years ago I posted a question to this forum, and received an answer by Keil. I did not notice that rules are changed. Varuzhan
The rule has always been that the forum is not the place to submit support requests.
It has always been the case that Keil do not officially monitor the forum - but they do take a look from time to time, and do sometimes post answers.
Hence the rules say, "Do not expect to receive technical support via this forum" (my emphasis).
In other words, you may be lucky - but don't expect it!
I do not think, that my question is just a support request. The answer can be interesting for many people, who use the MCBSTM32 board as a prototype for their own designs.