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  1. Forget the Arduino IDE! I would recommend using Visual Studio Code with the C/C++, Arduino and Cortex-Debug extensions. The Raspberry Pi Pico acting as programmer-debugger is called Picoprobe. It also features redirection of the Serial1 port. The installation process is detailed at the earlephilhower/arduino-pico page. You may need to build OpenOCD with specific options. It is easy and works fine. Debugging is performed from Visual Studio Code. Obviously, you can use manual command-line GDB and OpenOCD. The only caveat is Serial1 should be used instead of Serial to print to the
    1 point
  2. At USD4 apiece, you can use the second Raspberry Pi Pico as a programmer-debugger. It works really well!
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  3. Thank you for the pointer to the Challenger RP2040. It is nice to see the designers refrained from reinventing the wheel and took the Feather form-factor. Same for the LTE (SARA-R410M) or the WiFi radio (ESP8265). The Raspberry Pi Pico RP2040 is a very good board and I strongly recommend the Earle Philower's Pico core for Arduino over the official Arduino mbed-based implementation. There is a whole eco-system built around the Raspberry Pi Pico with many interesting kits. Let's me mention the E-Paper Display Pico Kit (EPDK), an all-in-one e-paper kit from Pervasive Displays.
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  4. Hi to all, are you interested in assembler language programming? if so, this could be of interest to you. the basic idea is a 5kB kernel embedded on a MSP430FRxxxx, capable of downloading source files, interpreting and compiling them. Associated with a minimalist IDE: a text editor, a generic preprocessor and a terminal to communicate with the embedded kernel. What is the craziest wish of a microcontroller programmer? In my opinion, it would be that once his source is modified, he clicks on the "build" shortcut of the editor and in a second, the program is compiled on the targ
    1 point
  5. I decided "for the hell of it" to print out the MSP430 chip family User's Guide, all 676 pages of it (slau445). Total cost was ~$70 altogether including the $10 binder from Staples. I used bestvaluecopy.com for the printing - printed in B&W, with a thicker color cover sheet, 3-hole drilled, shrink-wrapped, and put it in my own binder. Reading the more esoteric parts of the book - like the PMM, SVS and CS systems - is actually much nicer in print I found. Just more comfortable to sit down at the table and *look* at the diagrams and text and hold my left hand under the page with the
    1 point
  6. bluehash

    Forum flooded with spam

    Hi All, I cleaned up the site last week. This year has not been the greatest for me(and for alot). Pardon the neglect. True that the blog has not been update, but I have not seen much content on the MSP430/432. Also TI's E2E has been vastly popular. There was no "commercial" side. I still pay for server and forum licenses out of pocket. I've kept it up since there is alot of useful info and people benefit from it.
    1 point
  7. oPossum

    Volt/Amp/Watt meter

    This is a simple voltage and current meter that uses the TI INA219 chip. Voltage measurement range is 0 to 26 volts with 4 mV resolution and current measurement range is -4 to +4 amps with 1 mV resolution (when using a 0.01 ohm shunt). The specs are inferior to a pair of quality multimeters, but it is a fraction of the price and shows wattage in addition to voltage and current. The Nokia 5110 display is used so the firmware could be enhanced to do simple graphing. Sending the measurements to a computer could also be done. Using the INA219 makes for a very simple circuit. The normal d
    1 point
  8. The only problem, MAX7221 is a 5V device. You should be using MAX6951 for 3V applications.
    1 point
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