Hi,
Which dsPIC, 33F or 30F?
I have learnt the 33F in C30 language and mikroBASIC and feel much more comfortable in mikroBASIC. There are 3 variants of the PIC33F, GP, GS and MC series, GP - General Purpose, GS - Switching Power Supply, MC - Motor Control.
I am currently using the GP series, mostly, dsPIC33FJ16GP304.
I haven't found any proper book on dsPIC33, but the reference manuals from the Microchip website are superb. The reference manual and datasheet are enough to learn the dsPIC33.
You should start with the reference manual and datsheet and go through them.
If you post your further queries and required information here, I will try to help you.
Furthermore, if you choose dsPIC30, there is a book by mikroElektronika on their website plus obviously datasheet and reference manual.
Tahmid.