SPI is getting slow

[gsaikiran29]

hello,
First of all I am new to this core, prev I used roger's one.
I am using f103vet6 board. by using this https://github.com/r-pv/STM32F103VET6_STUno added variant in this core and ran simple tests like blink, serial examples its fine.
Now I want to use SPI 2 for tft ili9341(tried with adafruit and tft_eSPI) by declaring
SPIClass SPI(PB15, PB14, PB13, PB12); in SPI.cpp.
its works but printing on the display is very slow, when compared with my old core.
I cant find where is the issue.
Is there anything more required to add to core additional to this https://github.com/r-pv/STM32F103VET6_STUno ?

[fpistm]

Hi @gsaikiran29
Right the SPI is slow compare to Roger's core.
In the next release an improvement will be available which increase the speed (already available in the master).
You can also change the speed.
There is an issue opened about that to optimize the SPI #257.

Please for questions/support request use the https://www.stm32duino.com

[gsaikiran29]

hi @fpistm Thanks for the info.
I have already opened discussion on stm32duino https://www.stm32duino.com/viewtopic.php?f=7&t=184
When it can be solved? and I need a variant of all f103v series, when it will be available?

[fpistm]

When it can be solved? and I need a variant of all f103v series, when it will be available?

It is an improvement not a bug. For the STM32F103V series, you can follow the wiki how to add new variant.

This is a community project. Do not hesitate to contribute.