Sorry I missed the original, archive is great. I do plan a solar powered project in the near future so power is important. I am not sure about no float point but there is always LUT.
Can a connector be added to this board to make it a J-Link for use with my board?
Answer: the Debug port can be used to interface to your own EFM32 MCU board. It is documented in the demo kit's user manual but I have not been able to make it work. If someone has please let me know either here or direct email: c.sayan@gmail.com
Can a connector be added to this board to make it a J-Link for use with my board?
I don't know. Look at the schematic and see how the J-Link USB interface connects to the EFM Tiny Gecko chip. I wonder if the bootloader includes J-Link specific code.
The questions in this chat are not being answered :(
Right! I can't read questions and answer them while also looking at slides and speaking to the group. If I could, I would. I answer questions when the lecture ends. ;-)
I can't answer that question because I don't know what capabilities and features you need. I'd look at the MSP430 family and the EFM32 families and see how they could compare based on your application or design.
As to RF, from the Energy Micro site: "Energy Micro, the energy friendly microcontroller and radio company, today announced a strategic relationship with Spectrum Design Solutions, a division of Digi International (NASDAQ: DGII) that provides wireless design services. The two companies will work closely together to solve customers' wireless design challenges using the Energy Micro EFM32 Gecko range of microcontrollers."
@Jon-- Digi manufactures a wide range of RF modules, so I would bet on IEEE 802.15.4, ZigBee, and WiFi to start.
@GreenlTguy - Thanks - trying to look at supporting compatibility with a protocol that runs at 315 MHz so was trying to see ability to use this family.
@LevitonDave Energy Micro has developed a low-power Wi-fi module with Qualcomm. They are launching new MCUs with RF capabilities later this year.. I believe they are called EFM32 Draco
Kamjam asks: Is laptop power saving using the same kit?
I'm not sure about the question, but I'll attempt an answer. Laptops use many ways to save power, but the Gecko family is meant for specific applications such as smart meters, portable instruments, rather than general-purpose computing apps.
an0023 app note from energy micro shows how to use eclipse/GCC instead of IAR... It is a little more involved - could not get it work properly. I reverted back to using IAR
Portable electronics, remote sensors, utility meters, wireless sensors, battery-powered instruments, etc. Check the EM site for specific application info.
Jon, do you know if the Simplicity Suite supports the Eclipse/GCC tools or only the commercial tools like IAR?
I don't know that the Simplicity Studio directly supports other tools, but you can get the example code as files and drop them into a project created with other IDEs. I don't have info about Eclipse/GCC tools specifically. Maybe someone here can help. Contact Energy Micro and check a forum devoted to tools. Wish I had more info to share.
This Kit works with GCC and Eclipse ? I don't know. I'm sure you can get a GCC set of tools for the Cortex-M3 processor, but the trick comes in getting the code into the MCU. You would need to use the on-board J-Link circuit. Or you could put an Energy Micro chip on your own board and use another tool to program the flash memory. I don't know how easy it would be to debug your code on the MCU this way, though.
You can debug your code without hardware by using a built-in simulator in the IAR Embedded Workbench tools. Other integrated development (IDE) software has simulation capability, too.
Energy Micro is gaining in popularity because it focuses solely on low-power microcontrollers. The Simplicity Studio is available from Energy Micro's Web site as a free download.
The J-Link debugger is a circuit that has a USB port on one side and the JTAG-like signals on the other to download code into the processor's FLASH memory. The J-Link also can obtain debug information from the ARM Cortex-M3 core via the Serial Wire Trace Port.
GreenITGuy asks: am trying to debug out from the STK kit to a EFM32TG222F32 on a break out board. IAR detects the MCU on the breakout but I get errors when trying to load the flash and debug
@raghu- Yes EFM32 uses less power than the MSP430. The MSP430 is lower performance and capability per Mhz. I have some documentation- I am comparing it with the MSP430. Send me an email and I will it send it over: c.sayan@gmail.com
IAR Systems has an energy-profiling tool also, but I cannot remember what processor families it works with. Check out the IAR Systems web site for more info.
when i cannot find infomation in a reasonable time. i call tech support and let them do their job. sometimes they incorreppted this information into updates.
Shorter is better. I generally don't learn much in this sort of exercise - I view it more as establishing a baseline. It (should be) easy to go through, and gives you a reference point for "it worked at this point... what did I break?" as you progress.
HALs are useful but only if the hw being abstracted is somewhat standard, such as a UART. But if the hw design is new and changing, HALs don't do much. (My definition of HAL is that it hides details of several different variations of hw, such as UART variations.)
I got the program example to run in less than an hour. The problem I am having is using the onboard JLink to talk to an external EFM32 MCU on my own breakout board. Energy Micro documentation indicates that Ishould be able to do it. Simplicity sees the external MCU but IAR gives fatal error while trying to upload to MCU
@Rob: HAL is always a good thing. If one is not supplied or is non-standard you typically end up writing your own. If the HAL is too inefficient or buggy, you can always abstract the problems away for yourself.
I am trying to debug out from the STK kit to a EFM32TG222F32 on a break out board. IAR detects the MCU on the breakout but I get errors when trying to load the flash and debug. Any ideas?
I am trying to debug out from the STK kit to a EFM32TG222F32 on a break out board. IAR detects the MCU on the breakout but I get errors when trying to load the flash and debug
I'm at work right now, but with my netbook or tablet at home and WiFi, I can be working, reading, studying or keeping in touch with friends while sitting under a shady tree with a cold drink by my side.
Hey danlafleur good to hear from you:) well, when you love something you gain all the strengths and energies. I am enjoying vacations and lecture series at the same time. Is not it fun?
@adanial - this was happening to me when I was using an old(er) PP or PP viewer. I solved the problem by downloading a current PP View from MS and all was OK
Two suggestions: Whenever Jon switches slides, note it in the comments and whenever you have a question for the audience, post it in the comments. Both of these will make it easier to follow along when listening to an archived presentation.
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