Search found 6658 matches

by RogerClark
Tue Sep 19, 2017 11:39 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hello from Norway
Replies: 3
Views: 30

Re: Hello from Norway

Most boards, (apart from the Maple Mini) are blank when you buy them, or just have code that simply flashes the on board LED You can get code onto them using USB to Serial, or by using a ST-Link (or other SWD programmer) We have a USB bootloader that works on the STM32F1xxx series, which is what mos...
by RogerClark
Tue Sep 19, 2017 9:09 pm
Forum: USB to Serial adaptors
Topic: [SOLVED] Prolific USB to serial not working on Windows 10
Replies: 8
Views: 135

Re: [SOLVED] Prolific USB to serial not working on Windows 10

LOL, fake PL2303 chips as well now ... I womder how cheap a product has to be, so that its not worth cloning. On a vaguely related note... There are STM32f103 boards that emulate the CH340g USB to Serial adaptors. ( and also do USB to SPI and USB to I2C) and the firmware binary was posted to another...
by RogerClark
Tue Sep 19, 2017 8:58 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hello from Norway
Replies: 3
Views: 30

Re: Hello from Norway

Welcome...

Take a look through the active posts ( use the quicklinks menu), as someone recently posted about reading from virtually all the ADCs at the same time...
by RogerClark
Tue Sep 19, 2017 10:06 am
Forum: General discussion
Topic: NuttX on a BluePill
Replies: 43
Views: 596

Re: NuttX on a BluePill

Pito wrote:
Tue Sep 19, 2017 9:33 am
...
A nice stuff for upcoming long winter evenings (at least here in northern hemisphere).
Rapa Nui is in the southern hemisphere ;-)
by RogerClark
Tue Sep 19, 2017 2:45 am
Forum: STM32F103 Boards
Topic: Another F103C8 board (but not good value)
Replies: 17
Views: 975

Re: Another F103C8 board (but not good value)

I tried the latest firmware on a BluePill and it is now appearing as a CH340 is I ground pin PA7 (MOSI) I'll try the other pin combinations later, but as there are no docs about how the I2C or SPI modes are supposed to work, e.g. can you send commands or just data, e.g. Enable SPI CS etc, then I thi...
by RogerClark
Tue Sep 19, 2017 2:07 am
Forum: STM32F103 Boards
Topic: Another F103C8 board (but not good value)
Replies: 17
Views: 975

Re: Another F103C8 board (but not good value)

Yah worse case, i will just flash it into a bmp. Just that i paid premiun for the firmware and it doesnt work, i could have gotten 4 blue pills. Anyway for the usb to i2c/spi/uart, there is already an opensource firmware littlewire that works on attiny digispark that cost $1.0 Thats always the gamb...
by RogerClark
Tue Sep 19, 2017 12:36 am
Forum: STM32F103 Boards
Topic: Another F103C8 board (but not good value)
Replies: 17
Views: 975

Re: Another F103C8 board (but not good value)

I think you may be better off writing your own code to do whatever this board is supposed to do. The only difference would be that you'd need to use a different USB driver as we don't have code that emulates the same USB to Serial adaptor. But apart from that, I would have thought that writing code ...
by RogerClark
Mon Sep 18, 2017 10:38 pm
Forum: General discussion
Topic: NuttX on a BluePill
Replies: 43
Views: 596

Re: NuttX on a BluePill

@acassis

Are you porting to the full RPi or the Zero ? (or is it the same ?)
by RogerClark
Mon Sep 18, 2017 10:19 pm
Forum: General discussion
Topic: Overactive interrupt triggering using internal pullups
Replies: 42
Views: 1177

Re: Overactive interrupt triggering using internal pullups

True...

BTW. good call about potential issues with NSS.

Code was added to make it usable as GPIO even when using SPI, and I dont recall anyone having problems with using it as an output.

But there may be problems as an input or with using it as an interrupt pin