hi
ok, i warn you, im silly boy!

the first 2 files are in your lazarus/fpc instalation. In my case
F:\Lazarus\fpcsrc\rtl\embedded\arm\stm32f10x_md.pp
and
F:\Lazarus\fpcsrc\rtl\embedded\arm\cortexm3_start.inc
ovbiusly are not documents, just source files but there you can see and get a lot of info
and the last one you can download it from st site:
**s://www.st.com/resource/en/reference_manual/cd00171190-stm32f101xx-stm32f102xx-stm32f103xx-stm32f105xx-and-stm32f107xx-advanced-arm-based-32-bit-mcus-stmicroelectronics.pdf