On Mon, Jul 8, 2019 at 07:59 AM, bobolink wrote:

uint16 --> uint16_t

I had the same issue when I used the https://github.com/stm32duino toolchain.

Did not have issues with the https://github.com/rogerclarkmelbourne/Arduino_STM32 toolchain.

I simply added a #define uint16 uint16_t to the top of the file to fix that. There were enough additional issues that I switched to the Roger Clark toolchain, as I had no hardcore reason to use the stm32duino (supposedly official) Arduino toolchain. I also have STM developer boards for client projects, but I tend to use STM32Cube, rather than Arduino, with those. 

Don't know if you are still in the STM32 family or porting to another processor altogether.

Tom, wb6b