Support STM with LL library, support ASCII chars directly, added much more glyphs

[Vinzenz82]

Hello Coders,

I added following features:

• support of LL library for STM32 target
• support of directly using ASCII chars - enables to use sprintf output directly
• support more glyphs : latin alphabet as described here: https://en.wikipedia.org/wiki/Seven-segment_display

sprintf(cData, "HELLO_-~");

sprintf(cData, "_-~coder");

sprintf(cData, "_-~go~-_");

sprintf(cData, "~-_on_-~");

sprintf(cData, "start at");

sprintf(cData, "%2d-%2d-%2d", Now.hour, Now.minutes, Now.seconds);

Tested with different controllers.

With best regards from germany,

Vinzenz Petr

[Hossein-M98]

Hello Vinzenz
Thanks for your contribution.
I will check your changes and if everything is OK I will merge them into the main code.
Respectfully,
Hossein from Iran :)

[Hossein-M98]

There are some problems that should be fixed before merging into the master branch:

1. In the platform files, create a new platform for the STM32 LL library, instead of changing the previous STM32 HAL-compatible platform.
2. Delete this part of the code. Because there are no hex numbers marked "g".
   

Good luck

[Vinzenz82]

Dear Hossein,

thank you very much for fast feedback and response. I removed the test code (0x40). In the platform code I already added a new target, look for TM1638_PLATFORM_STM32_LL. The original TM1638_PLATFORM_STM32 is still working with HAL and is not touched.

Best Regards,

Vinzenz