https://www.amateurfunk-sulingen.de/wiki/ 2026-04-18T14:33:39+00:00 https://www.amateurfunk-sulingen.de/wiki/ https://www.amateurfunk-sulingen.de/wiki/lib/exe/fetch.php?media=wiki:logo.png text/html 2018-02-13T16:48:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.amateurfunk-sulingen.de/wiki/doku.php?id=en:uhsdr:uhsdrbl&rev=1518540494&do=diff review english Bootloader Installation - General Comments Three different options exist to do boot loader installation or upgrade: * Option 1: Debug adapter approach. Preconditions: * STM „ST-Link V2“ adapter, STM Link SW * Option 2: STM „Defuse“ text/html 2018-02-05T23:03:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.amateurfunk-sulingen.de/wiki/doku.php?id=en:uhsdr:uhsdrdownload&rev=1517871783&do=diff review english Download most recent UHSDR versions UHSDR version scheme Details on the UHSDR version numbering scheme can be found here. UHSDR version numbers consists of the parts MAJOR.MINOR.PATCH, e.g.: „2.6.0“. MAJOR denotes substantial changes in firmware (e.g. very different interface concept, changed hardware). The major number changes seldomly. text/html 2018-02-06T10:08:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.amateurfunk-sulingen.de/wiki/doku.php?id=en:uhsdr:uhsdrfw&rev=1517911712&do=diff review english UHSDR Firmware There are two standard options to load new firmware versions onto a working UHSDR boot loader: * DfuSe Tool * USB Stick ST-Link/V2 debug adapter can also be used to download new firmware DfuSe Firmware upgrade Preconditions text/html 2018-02-07T15:15:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.amateurfunk-sulingen.de/wiki/doku.php?id=en:uhsdr:uhsdrintro&rev=1518016545&do=diff english review UHSDR Introduction UHSDR stands for Universal Ham Software Defined Radio. The UHSDR project consists of boot loader and firmware (application) for stand-alone SDR hamradio transceivers. There is no need for an additional PC to operate the SDR radio. At this moment UHSDR supports the ST-Micro processors STM32F4, STM32F7 und STM32H7 MCUs with SDRs based on the QSD design. The firmware enables reception and transmission of the usual operating modes (SSB, FM, AM, synchronous-AM) … text/html 2018-02-26T18:58:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.amateurfunk-sulingen.de/wiki/doku.php?id=en:uhsdr:uhsdrtroubleshooting&rev=1519671499&do=diff review english UHSDR Troubleshooting LCD constant white screen In case the LCD remains white (background light on, no text) after OVI40 UI power up this indicates * no UHSDR boot loader present or * UHSDR boot loader doesn't work properly The correct UHSDR functioning can be verified with simple means: