LeafLabs Garden

A place to share, learn, and grow...

1. 

   StephenFromNYC
   Moderator

   Hello-

   I was cleaning up my browser bookmarks and found a few direct st.com links describing the different microcontrollers used on the LeafLabs products:

   1) The original Maple uses a STM32F103RB chip

   2) Maple Mini uses a STM32F103CBT6 chip

   3) Maple Native uses a STM32F103ZE chip

   To access information and downloadable files click on the middle "Design support" tab. I think that is a terrible name for the tab, and for a long time I did not click on it. I agree with poslathian and gbulmer that the redesigned web site is not user friendly to users searching for material.

   I do not have time to learn the wiki software. If someone thinks these three links are useful please add them to the wiki.

   Enjoy!

   Stephen from NYC (full disclosure: I am not a member of the LeafLabs staff)

   Edit: The "Maple RET6 Edition" uses a STM32F103RET6 chip

   Posted 4 years ago #
2. 

   mbolivar
   LeafLabs

   Stephen,

   Those are useful links; thanks for taking the time to go through ST's website and find them.

   Rather than include them in the wiki pages, I'll make sure they end up in the official documentation (under leaflabs.com/docs/ ) for each board.

   Posted 4 years ago #
3. 

   StephenFromNYC
   Moderator

   Hello-

   jessb mentioned the future use of the STM32F103RET6 microprocessor in a future Maple board.

   Here is a direct link to the STM32F103RE series (which includes the STM32F103RET6 chip).

   http://www.st.com/internet/mcu/product/164485.jsp

   Enjoy!

   Stephen from NYC (full disclosure: I am not a member of the LeafLabs staff)

   Posted 4 years ago #
4. 

   gbulmer
   Moderator

   mbolivar - you might want to add:
   "RM0008 Reference manual STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx and STM32F107xx advanced ARM-based 32-bit MCUs"
   http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/REFERENCE_MANUAL/CD00171190.pdf
   which is the hardware reference for all of the peripherals.

   "PM0056 Programming manual. STM32F10xxx/20xxx/21xxx/L1xxxx Cortex-M3 programming manual"
   http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/PROGRAMMING_MANUAL/CD00228163.pdf
   which is similar to ARM's programming manual.

   http://infocenter.arm.com/help/topic/com.arm.doc.ddi0337e/DDI0337E_cortex_m3_r1p1_trm.pdf
   "Cortex -M3 Revision: r1p1 Technical Reference Manual" to the documentation links.
   It is the most recent one (I've found) which includes Cortex-M3 instruction timing. Which seems to have been removed from the ST documents.

   Posted 4 years ago #
5. 

   StephenFromNYC
   Moderator

   Hello,

   gbulmer, in my links references I had forgotten to include a link to the assembly language programming manual (PM0056). Thanks for the edit.

   RM0008 is already included on some LeafLabs documentation pages, such as http://leaflabs.com/docs/usb.html but it is simply described in a footnote and as Reference Manual/13902.pdf (and not as RM0008). The importance of this file is not emphasized as much as it could be, although to be fair it is included in the STMicro documentation section of the "Recommended Reading".

   In my original post I asked if anyone was interested in starting a page on the wiki where this information (and hopefully other information) could be posted.

   Besides the hyperlinks to the files the release dates (or version numbers) of the PDFs and ZIP files may also be important to users who want to know when they should update their files.

   Currently (in April 2011):

   RM0008 is in version 12 (2011 Jan)
   PM0056 is in version 04 (2011 Mar)

   gbulmer, as your URL indicates the Cortex M3 Technical Reference Manual (TRM) file is not an st.com document, but is an arm.com document. If my understanding is correct, st.com licenses from arm.com the ability to make cortex m3 based chips, but that arm.com does not make any chips. Maybe the license does not include the ability to host arm.com documents on licensee web sites?

   The most recent version of the Cortex-M3 TRM seems to be from 2010 (it is now April 2011 for future readers).

   Here is the link to the web version of r2p1 (release 2 printing 1?)

   http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0337i/index.html

   The PDF version of TRM r2p1 can be downloaded from:

   http://infocenter.arm.com/help/topic/com.arm.doc.ddi0337i/DDI0337I_cortexm3_r2p1_trm.pdf

   Enjoy!

   Stephen from NYC (full disclosure: I am not a member of the LeafLabs staff)

   Posted 4 years ago #
6. 

   gbulmer
   Moderator

   StephenFromNYC - I prefer r1p1 over r2p1 because:
   a. r2p1 is 137 pages vs 384 for r1p1, so less detail on areas including e.g. exceptions, so you also need the "ARM Architecture Reference Manual" with r2p1
   c. I am not sure STM32F103 implements r2p1, which is dated 7th July 2010!-)

   AFAIK you have to register with arm.com and agree to their license to obtain a copy of the "ARM Architecture Reference Manual", so a link is less useful than a downloadable document. The "Cortex -M3 Revision: r1p1 Technical Reference Manual" is freely download-able.

   I don't know the details of the ARM license, but if I were ST, I would prefer to have manuals branded with my logo and not ARM.
   PM0056 is pretty useful, and would have been even better if the instruction timing had been included.

   Though it isn't adequate proof of license policy, Altera host an old ARM Technical Reference Manual
   http://www.altera.com/literature/third-party/ddi0100e_arm_arm.pdf
   and you can find other copies about via google.

   I agree a wiki page would be okay. The hardest thing to track is the revision dates. I think ST may have changed to an approach which uses new file names for new versions. Combined with ST's google-unfriendly web-site it may be an irritating task to track document versions.

   Posted 4 years ago #
7. 

   mbolivar
   LeafLabs

   StephenFromNYC, gbulmer,

   I've made several of the changes you recommended in the following commit:

   https://github.com/leaflabs/libmaple/commit/8ba271a5b650559e03a52185e59e9fb34ff86bfa

   In particular, I have made the following changes to language.rst (the file that generates http://leaflabs.com/docs/language.html ):

   https://github.com/leaflabs/libmaple/commit/8ba271a5b650559e03a52185e59e9fb34ff86bfa#diff-101

   - Emphasized the importance of RM0008
   - Added a link to r1p1

   The link to PM0056 was already present in language.rst; its existence has been emphasized with a link to the recommended reading section in a "Looking for something else?" blurb on that page.

   I have also added a maple-ret6.rst (which will generate a new file /docs/hardware/maple-ret6.html), which includes the link to the STM32F103RET6 datasheet.

   Thanks for all the pointers!

   Posted 4 years ago #
8. 

   StephenFromNYC
   Moderator

   Hello-

   The Maple "RET6 Edition" uses a STM32F103RET6 microcontroller.

   One direct link on the st.com web site for information is:

   http://www.st.com/internet/mcu/product/164485.jsp

   Thanks!

   Stephen from NYC (full disclosure: I am not a member of the LeafLabs staff)

   Posted 4 years ago #
9. 

   mbolivar
   LeafLabs

   StephenFromNYC,

   The Maple "RET6 Edition" uses a STM32F103RET6 microcontroller.

   One direct link on the st.com web site for information is:

   http://www.st.com/internet/mcu/product/164485.jsp

   Thanks! This link has been included in the RET6 Edition's recommended reading:

   http://leaflabs.com/docs/hardware/maple-ret6.html#recommended-reading

   Posted 4 years ago #

RSS feed for this topic

Reply

You must log in to post.