What has model making to do with Embedded Systems? A lot as soon systems getting down to 1:160 scaled miniaturization with high integration needs while features like Digital Command Control and inverter control are added. For the receiver side, the locomotives, this is a standard for more than 10 years. But what is about the … [Read more…]
Mein SRCP Modellbahn Client für iOS hat das Licht entdeckt. Derzeit noch nicht im AppStore, aber schon im Betrieb auf iPhone und iPad in der Entwicklungsphase. Eine erste Version ist im Apple TestDrive verfügbar. Beta-Tester können sich gerne unter srcpclient_beta@io-expert.com melden, damit ich deren Apple ID für das Beta-Testing freigeben kann. Um so mehr Feedback ich von … [Read more…]
Mein Beitrag zum Modellbahn Tag: Drei eigens entwickelte Modellbahn digital Zentralen von groß bis klein mit Akku und Zentrale im H0 und N-Spur Wagon. Demnächst auch als Artikel in der Digitalen Modellbahn und ausführlicher Nachbauanleitung hier im Blog.
Apple digitally signs the installers used by its software updates. The certificates Apple used to sign these installers have expiration dates which is causing old installers are no longer working. But there is a trick to still download old installers. Apple has re-signed and re-released older installers, giving them a new expiration date of 14 … [Read more…]
Für Modelleisenbahn gibt es von den verschiedensten Herstellern Booster, um digitale Protokolle auf die Schiene zu bringen. Ich möchte in diesen Beitrag darauf eingehen, wie man sich möglichst klein und günstig einen eigenen Booster aufbauen kann, der natürlich vom Funktionsumfang sich stark zu komplexen Boostern unterscheidet. Hierzu ist es wichtig zu wissen, dass es verschiedenste … [Read more…]
Bare register based software examples for Apollo3Blue are now available at GitHub: https://github.com/schreinerman/Apollo3Blue_SoftwareExamples Software downloads having support for following toolchains / IDEs: IDE Manufacturer Download Windows Linux MacOS Embedded Studio Segger Link x x x uVision Keil/ARM Link x Embedded Workbench IAR Link x WinIDEA iSystem Link x Makefile GNU Link x x x … [Read more…]
In my last article I had described the capabilities of Apollo3Blue generating pattern in hardware: http://blog.io-expert.com/hardware-generated-pattern-with-apollo3blue In this article I will go a step deeper inside implementing a full protocol for driving audio: I2S. In general I2S is used to transfer left and right channel data in a 16-bit PCM format for each channel with a … [Read more…]
With Ambiq Micros Apollo3Blue MCU it is possible to use the timer peripheral as pattern generator to generate patterns up to 128-bit. In summary the CTIMER peripheral has 16 timers which can be used in 16-bit mode or if two 16-bit timers are connected together 8 timers which can be used in 32-bit mode. For … [Read more…]
Ultra-Low-Power energy harvesting applications often requires some “black-boxes” for finding the maximum power point between current and voltage consumption to harvest energy, a DC-DC converter to charge a storage element, some LDO for providing the target MCUs operation voltage and some kind of timer to wakeup the application periodically or wakeup by request via … [Read more…]
Apollo2’s hidden USB is not a hidden hardware feature, but software bit-banging using Apollo2s flexible GPIOs including the capability to drive 1.5k pullup resistors on special pins used with I2C.The following picture shows the connection between MCU and USB port: The solution supports low-speed USB for realizing HID USB transfers for example. One idea is … [Read more…]