Bug fix on ARM assembly routine for STM32 controller

Hi all, I'm working on an ARM assembly source code for a controller: STM32F103RB. The controller itself is available in a devolopment board, this one: [login to view URL] I'm trying to get up and running two separate peripherals: PWM ad USART, but they doesn't ! And I don't know why. I'm looking for an assembly developer that is able to fix only these two routines. I provide on my own, the routines that have to be fixed. They are both widely commented, so I should have provided every detail that you need to work on. All comments are provided in Italian language, but that should not be difficult to understand. Please mind that, on the Nucleo board that I'm using, not all the MCU pin are available for the PWM, but only the ones provided with a "Partial Remap", (read AFIO register, page 184 of the PDF "RM0008 = Manual Reference : bits [11:10]") and match with the third pdf available on the page I linked just above, named "UM1724: STM32 Nucleo-64 boards". Thank you all.