Search found 5 matches

by rogerclark
Sun Aug 09, 2020 2:08 am
Forum: STLink
Topic: ST-Link won't connect to a STM32F072 board
Replies: 0
Views: 1246

ST-Link won't connect to a STM32F072 board

Guys I'm trying to upload onto an open source antenna analyser board, called a NanoVNA ( https://github.com/ttrftech/NanoVNA ) Shematic https://github.com/ttrftech/NanoVNA/raw/master/doc/nanovna-sch.pdf But I can't seem to get a ST-Link or a JLink to connect via SWD. If I pull Boot0 high, the MCU go...
by rogerclark
Mon Mar 09, 2020 11:46 pm
Forum: USB bootloader
Topic: STM32duino bootloader has been updated to resolve some problems with the fastboot bootloader
Replies: 1
Views: 1132

STM32duino bootloader has been updated to resolve some problems with the fastboot bootloader

I noticed that I was not able to upload to the 'fastboot' version of the bootloader, immediately after installing the bootloader, but after I was able to upload the first sketch, by pulling Boot1 high to hold the bootloader in DFU mode, the problem was fixed and I could subsequently upload without a...
by rogerclark
Wed Feb 12, 2020 2:01 am
Forum: Projects
Topic: STM32 in Ham Radio
Replies: 3
Views: 1148

Re: STM32 in Ham Radio

Most MMDVM Hotspots use STM32F103's in them. https://github.com/juribeparada/MMDVM_HS The MCHF . HF SDR transceiver uses the STM32F4 https://github.com/df8oe/UHSDR Most of the TYT hand held VHF/UHF transceivers, like the TYT MD-380 use the STM32F4. There isn't fully open source firmware for this, bu...
by rogerclark
Thu Jan 23, 2020 1:02 am
Forum: USB bootloader
Topic: A recently introducued bug in the bootloader has now been fixed
Replies: 0
Views: 1868

A recently introducued bug in the bootloader has now been fixed

I accidentally introduced a bug while manually merging a load a changes a few weeks ago, which prevented the bootloader holding in DFU mode if Boot1 (or whatever is defined as the button pin) was held high. I've now fixed the problem and I've also added the "fastboot" version of the "generic pc13" b...
by rogerclark
Fri Dec 20, 2019 3:36 am
Forum: Custom design boards
Topic: Bluepill F4 board, anyone still working on it?
Replies: 83
Views: 15932

Re: Bluepill F4 board, anyone still working on it?

Hi Guys Frederic sent me a link to the new site I bought one of those F411 boards a few weeks ago, for a project which needed more CPU power https://www.aliexpress.com/item/4000103610226.html The board looks OK, and is slightly smaller than the BluePill But I don't know if it works, as I've been too...

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