However,"Embedded Systems" 2nd edition by Lee Seshia and Jonathan W. Valvano might be another.
You're looking for an introduction to embedded systems and possibly a solution manual for the book "Embedded Systems: Real-Time Application Programming for ARM Cortex-M Microcontrollers" by Jonathan W. Valvano and, or a similar text by Lee Seshia. introduction to embedded systems lee seshia solution manual
Although I couldn't find a direct match to a textbook by Lee Seshia on embedded systems, a well-known textbook on embedded systems is: However,"Embedded Systems" 2nd edition by Lee Seshia and
Here's an overview:
If you are using the book by Lee Seshia , You may get related solution manual on their respected websites. introduction to embedded systems lee seshia solution manual