Download 32-bit general purpose microcontroller core User manual

User manual
Table of Contents
1 Introduction................................................................................................................................................... 4
2 Internal structure........................................................................................................................................... 5
3 Programming osinka32................................................................................................................................. 6
3.1 Register description.............................................................................................................................. 6
3.2 Structure of the assembler file.............................................................................................................. 8
3.3 Memory addressing.............................................................................................................................. 9
3.3.1 Compiler directives and variable declaration................................................................................9
3.3.2 Address calculation and assembler mnemonics.........................................................................11
3.3.3 Sequential memory reading and writing......................................................................................11
3.3.4 Reading data from code memory................................................................................................ 12
3.3.5 Memory alignment...................................................................................................................... 12
3.3.6 Data memory organization.......................................................................................................... 13
3.3.7 Code memory organization and execution start point.................................................................13
3.4 IO bus and communication with periphery units.................................................................................17
3.5 Thread switch..................................................................................................................................... 17
3.5.1 Purpose and idea........................................................................................................................ 17
3.5.2 Thread context and thread list.................................................................................................... 18
3.6 Interrupts (IRQ)................................................................................................................................... 21
4 Command summary.................................................................................................................................... 22
5 IDE description........................................................................................................................................... 25
5.1 System requirements.......................................................................................................................... 25
5.2 Installation........................................................................................................................................... 26
5.3 Deinstallation...................................................................................................................................... 26
5.4 IDE main window................................................................................................................................ 26
5.5 Starting a new project......................................................................................................................... 26
5.6 Compiling the project.......................................................................................................................... 28
6 Output files format...................................................................................................................................... 30
7 Hardware implementation........................................................................................................................... 31
7.1 External interface................................................................................................................................ 31
7.2 Clock and Reset................................................................................................................................. 32
7.3 Memory interface................................................................................................................................ 33
7.4 IO Interface......................................................................................................................................... 35
3/37