Search found 12 matches

by Jimbo13
Wed Apr 01, 2020 2:52 pm
Forum: General discussion
Topic: [SOLVED}BluePill I2C Wire.setClock(400000) Stops USB working
Replies: 7
Views: 38

Re: [SOLVED}BluePill I2C Wire.setClock(400000) Stops USB working

In our implementation setClock assume the Wire is initialized. And in the Arduino link: https://www.arduino.cc/en/Reference/WireSetClock There is no mention that Wire should be initialized before setClock. I just noticed that a long way down in the comments for the video somebody does mention that ...
by Jimbo13
Wed Apr 01, 2020 12:43 pm
Forum: General discussion
Topic: [SOLVED}BluePill I2C Wire.setClock(400000) Stops USB working
Replies: 7
Views: 38

Re: BluePill I2C Wire.setClock(400000) Stops USB working

OK , thanks that worked. I followed this video which states that the Setclock() should be called before the wire.begin otherwise the I2c will run at the default speed. Look at 4 minutes 30. https://www.youtube.com/watch?v=ImctYI8hgq4 I also did do a lot of searching to find an example which included...
by Jimbo13
Wed Apr 01, 2020 10:32 am
Forum: General discussion
Topic: [SOLVED}BluePill I2C Wire.setClock(400000) Stops USB working
Replies: 7
Views: 38

Re: BluePill I2C Wire.setClock(400000) Stops USB working

I am using Visual Micro. Annotation 2020-04-01 112459.jpg Even setting "Wire.setClock(100000);" stops USB and I get a windows message "USB Device not recognised etc", and the LED does not blink. The programme seems to compiles and uploads OK. As you can see I have remmed out most things. //thanks to...
by Jimbo13
Wed Apr 01, 2020 8:38 am
Forum: General discussion
Topic: [SOLVED}BluePill I2C Wire.setClock(400000) Stops USB working
Replies: 7
Views: 38

[SOLVED}BluePill I2C Wire.setClock(400000) Stops USB working

On my BluePill programme, using I2C , when I include the line "Wire.setClock(400000);" the USB port, which was working before, Stops working.
The I2C was working before as well.
I have "wire version=1.0" installed.

Any suggestions please.
by Jimbo13
Thu Mar 26, 2020 7:05 pm
Forum: General discussion
Topic: [SOLVED]BluePill F1038C8 Where has all the memory gone
Replies: 9
Views: 180

Re: [SOLVED]BluePill F1038C8 Where has all the memory gone

For my project I want to use the things excluded by hal_conf_extra.h So without hal_conf_extra.h and enabling Serial and USB I get: Sketch uses 19524 bytes (29%) of program storage space. Maximum is 65536 bytes. Global variables use 3548 bytes (17%) of dynamic memory, leaving 16932 bytes for local v...
by Jimbo13
Thu Mar 26, 2020 5:54 pm
Forum: General discussion
Topic: [SOLVED]BluePill F1038C8 Where has all the memory gone
Replies: 9
Views: 180

Re: [SOLVED]BluePill F1038C8 Where has all the memory gone

If I leave that line I get the following errors and just assumed it was that line causing it because it. In file included from C:\Users\james\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.8.0\cores\arduino/board.h:8, from C:\Users\james\AppData\Local\Arduino15\packages\STM32\hardware\stm32...
by Jimbo13
Thu Mar 26, 2020 5:49 pm
Forum: General discussion
Topic: [Solved]How to use USB micro port on BluePill
Replies: 7
Views: 139

Re: How to use USB micro port on BluePill

OK I think I have sorted this out. BP is known to have an issue with a wrong resistor value for USB detection so it can't enumerate properly. "USB Enumeration is the process of detecting, identifying and loading drivers for a USB device". I replaced resistor R10 on the underside of the BluePill. It ...
by Jimbo13
Thu Mar 26, 2020 5:33 pm
Forum: General discussion
Topic: [SOLVED]BluePill F1038C8 Where has all the memory gone
Replies: 9
Views: 180

Re: [SOLVED]BluePill F1038C8 Where has all the memory gone

Just as follow up information: I built the Blink programme in Arduino for BluePill, disabling the USART and USB support: Sketch uses 7429 bytes (11%) of program storage space. Global variables use 576 bytes (2%) of dynamic memory Then in "Arduino - Sketch - Add file" I added the hal_conf_extra.h fil...
by Jimbo13
Wed Mar 25, 2020 3:31 pm
Forum: General discussion
Topic: [Solved]How to use USB micro port on BluePill
Replies: 7
Views: 139

Re: How to use USB micro port on BluePill

Hi fpiSTM, Still not working, the only difference to what you suggest is that I am not using a bootloader as in your example, I am using STM32CubeProgrammer v2.3.0 with a Chinese ST-LINK. I am using CoolTerm but cannot see a USB port other than the ST-LINK. This is my programme: void setup() { pinMo...
by Jimbo13
Wed Mar 25, 2020 10:33 am
Forum: General discussion
Topic: [Solved]How to use USB micro port on BluePill
Replies: 7
Views: 139

[Solved]How to use USB micro port on BluePill

Advice please for a BluePill beginner. I am programming with an ST-LINK. How do I setup and use the micro USB port on the BluPill board to output data from my programme? There are 2 optional settings in the Arduino Tools section, USB support and USB speed. I am not sure how to set these. Then in the...

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