starting f1mdvl
Merge branch 'master' into f1_mdvl
update stperiph srcs to work with MDVL. create build config for MDVL
error-free library build
further mdvl fixes. blink example working
button example working
update dma_copy example to use DMA1 so it's compatible with MDVL
system dir for all examples. regression fixes on other mcus
converting crc example
dac example to vl
dac triangle mdvl config. remove mdvl system files from ads7843/cs43l22
dma_fill tested on vl-discovery
correct previous commit
exti tested on vl-discovery
early GPIO LCD driver for VL. will be renamed and updated post-testing
trim the unused system files from examples targetting unavailable peripherals
removing another 2 incompatible examples
usart_receive_dma: add project config for mdvl
basic setup for r61523 gpio example on vl
renamed access mode to correct timings