[Q]UART debugging with ISD51 in uPSD3234A

Hello Guys, I tried to debug my system by follwing this, http://www.keil.com/c51/isd51.htm#API However, I can't insert any characters to the 'View/Serial Window #1'. The baud rate is correct....
[Q]UART debugging with ISD51 in uPSD3234A

Hello Guys, I tried to debug my system by follwing this, http://www.keil.com/c51/isd51.htm#API However, I can't insert any characters to the 'View/Serial Window #1'. The baud rate is correct....
registry read error

startup_stm32f407xx.s: Error: A9555E: Failed to check out a license.LICENSE ERROR (R207(2): REGISTRY READ ERROR) startup_stm32f407xx.s: startup_stm32f407xx.s: Check that your license details are correct...
registry read error

startup_stm32f407xx.s: Error: A9555E: Failed to check out a license.LICENSE ERROR (R207(2): REGISTRY READ ERROR) startup_stm32f407xx.s: startup_stm32f407xx.s: Check that your license details are correct...
Failed to check out a license.LICENSE ERROR (R207(2): REGISTRY READ ERROR)

I have downloaded the ARM KEIL MDK ( https://www.keil.com/download/product/ ) and Free license available for STM32 L0 controllers ( http://www2.keil.com/stmicroelectronics-stm32 ). I am getting license...