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by stevestrong
Thu Apr 27, 2017 1:40 pm
Forum: General discussion
Topic: Problem with measuring very short pulses
Replies: 20
Views: 329

Re: Problem with measuring very short pulses

Have you checked the PWM input mode (chapter 14.3.7 of RM0008)? It is specially designed to measure high and total periods.
Several timers can be cascaded for time periods longer than ~65.5ms.
by stevestrong
Thu Apr 27, 2017 9:50 am
Forum: Generic STM32F103
Topic: USB Device Not Recognised
Replies: 11
Views: 117

Re: USB Device Not Recognised

Your problem looks similar to this one:
http://www.stm32duino.com/viewtopic.php?f=16&t=1927

Other options:
- not correctly soldered USB pins
- look for other bootloader binary in this forum.
by stevestrong
Thu Apr 27, 2017 8:30 am
Forum: Generic STM32F103
Topic: USB Device Not Recognised
Replies: 11
Views: 117

Re: USB Device Not Recognised

Blinking LED at startup is ok, that's the DFU bootloader.
Have you installed the drivers?
http://wiki.stm32duino.com/index.php?ti ... on_Windows
by stevestrong
Thu Apr 27, 2017 7:15 am
Forum: Generic STM32F103
Topic: USB Device Not Recognised
Replies: 11
Views: 117

Re: USB Device Not Recognised

Flashing at 0x80000000 is OK, it must be this way. You should be able to flash the bootloader (*_20.bin"). Then the USB device should be recognized as "DFU device", no serial COM port. In this case you should be able to upload your code when you select "STM32duino bootloader"...
by stevestrong
Wed Apr 26, 2017 2:23 pm
Forum: Cores
Topic: STM32GENERIC, my arduino implementation
Replies: 100
Views: 1154

Re: STM32GENERIC, my arduino implementation

I think we desperately need a separate "STM32generic" entry under "Bootloaders and cores",
so that each issue can be discussed in separate thread.
by stevestrong
Wed Apr 26, 2017 2:13 pm
Forum: STM32F4 Boards
Topic: CLOSED, FOCUS GOES TO HAL BASED CORES - Improving F4 core (libmaple based)
Replies: 161
Views: 1780

Re: Improving F4 core (libmaple based)

Pito wrote:Is there something specific what libmaple can do and STM HAL can't??

For example: 600kBps download speed on USB serial on blue pill.
by stevestrong
Wed Apr 26, 2017 1:29 pm
Forum: STM32F4 Boards
Topic: CLOSED, FOCUS GOES TO HAL BASED CORES - Improving F4 core (libmaple based)
Replies: 161
Views: 1780

Re: Improving F4 core (libmaple based)

Victor, it seems that you have decided to go Daniel's way. Me, I have to first try it, too. A very first look into those sources on github shows an apparently logical structure. And I have to agree that for F4 that approach would give more value and faster development times than the libmaple based o...
by stevestrong
Wed Apr 26, 2017 8:22 am
Forum: Projects
Topic: oled example code is not working
Replies: 4
Views: 100

Re: oled example code is not working

You have to get the GFX library directly from Adafruit repo and place it to the libraries folder.
by stevestrong
Tue Apr 25, 2017 9:44 am
Forum: Generic STM32F103
Topic: Modbus Master and Slave on STM32F103 and UNO
Replies: 29
Views: 1623

Re: Modbus Master and Slave on STM32F103 and UNO

@zouk199,
stop multiple-posting, your issue will not be solved if you post in every possible thread.
If you have already Enc26 working on F103, then ModbusIP (link from your other post) should work out of the box.
Just try one of those examples.
by stevestrong
Mon Apr 24, 2017 7:46 pm
Forum: STM32F4 Boards
Topic: CLOSED, FOCUS GOES TO HAL BASED CORES - Improving F4 core (libmaple based)
Replies: 161
Views: 1780

Re: Improving F4 core (libmaple based)

I need to keep them in the same folders to track some more changes, then we can reorganize in a way that makes more sense. To me would be something like: Leave common files in core and libmaple. Take MCU specific files together to a single folder, named the cpu series. Since they are in their own f...

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