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by RogerClark
Fri Nov 24, 2017 10:32 am
Forum: General discussion
Topic: OverClock. at Runtime ~90MHz
Replies: 13
Views: 123

Re: OverClock. at Runtime ~90MHz

alexandros wrote:
Fri Nov 24, 2017 8:20 am
RogerClark wrote:
Thu Nov 23, 2017 8:13 pm

Or, it may be possible to run at 128MHz for a few milliseconds without impacting the USB at all.
Thanks Roger!!

Any code snippet for that??
No. I'm not aware of any code to change the clock speed during at runtime.
by RogerClark
Fri Nov 24, 2017 4:32 am
Forum: General discussion
Topic: Newbie question about 'short' and 'uint16_t' data types
Replies: 10
Views: 91

Re: Newbie question about 'short' and 'uint16_t' data types

No worries

Someone may spot an optimisation...
by RogerClark
Thu Nov 23, 2017 8:20 pm
Forum: General discussion
Topic: Problem with PWM Output lots of noise.
Replies: 6
Views: 111

Re: Problem with PWM Output lots of noise.

OK. So you didn’t raise the priority of the PWM, you reduced the priority of the USART .?
by RogerClark
Thu Nov 23, 2017 8:18 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Introduction
Replies: 4
Views: 53

Re: Introduction

This is not the right forum for market research about what features a particular product should contain. It’s a forum for members to help each other use the Arduno IDE on STM32 devices. I presume your “robot”would be sold for educational purposes, but the members of this forum are highly skilled and...
by RogerClark
Thu Nov 23, 2017 8:13 pm
Forum: General discussion
Topic: OverClock. at Runtime ~90MHz
Replies: 13
Views: 123

Re: OverClock. at Runtime ~90MHz

The LibMaple Core is not designed to allow changes to clock frequency at runtime If you look at the places where the F_CPU definition is used https://github.com/rogerclarkmelbourne/Arduino_STM32/search?utf8=✓&q=f_cpu&type= It’s used in multiple places All of those would need to be changed to use a v...
by RogerClark
Thu Nov 23, 2017 11:21 am
Forum: General discussion
Topic: Problem with PWM Output lots of noise.
Replies: 6
Views: 111

Re: Problem with PWM Output lots of noise.

Can you post a code snippet

Thanks
by RogerClark
Thu Nov 23, 2017 11:18 am
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Introduction
Replies: 4
Views: 53

Re: Introduction

welcome

What questions do you have ?
by RogerClark
Thu Nov 23, 2017 5:37 am
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Greetings from Reading, Pa
Replies: 1
Views: 26

Re: Greetings from Reading, Pa

Welcome We have several ham radio operators in the site, including me... I've not used the STM32 for any traditional ham radio related activities, but I have been looking at some LoRa modules as they can operate on 2m and 70cm. I've been hoping to set up a test with Lee (VK3KP) or NIck (VK3TY) bough...
by RogerClark
Wed Nov 22, 2017 9:56 pm
Forum: General discussion
Topic: ST-Link Vs Jlink
Replies: 15
Views: 154

Re: ST-Link Vs Jlink

Rick I did investigate whether it would be possible to make a USB mass storage bootloader but I think the overhead of the file system, made it quite large Drive letter on Windows can also be a problem for automating the USB Mass storage, as the IDE does have a dropdown to select mass storage drive f...
by RogerClark
Wed Nov 22, 2017 9:12 pm
Forum: General discussion
Topic: ST-Link Vs Jlink
Replies: 15
Views: 154

Re: ST-Link Vs Jlink

With JLink you are also playing for JFlash and the large suite of tools which support thousands of processors. STLink is only designed to program ST devices (but can program others if you use Open OCD) , hence it just has a simple windows GUI and command line exe Note. STLink on some Nucleo boards a...