Comtrol eCos - Manual (Page 14)

HAL Platform CDL .................................................................................................................. 226
eCos Database ................................................................................................................. 226
CDL File Layout ............................................................................................................. 227
Startup Type .................................................................................................................... 228
Build options ................................................................................................................... 228
Common Target Options ................................................................................................. 230
Platform Memory Layout ......................................................................................................... 233
Layout Files ..................................................................................................................... 233
Reserved Regions ............................................................................................................ 233
Platform Serial Device Support ................................................................................................ 233
Variant HAL Porting ........................................................................................................................... 235
HAL Variant Porting Process .................................................................................................... 235
HAL Variant CDL ..................................................................................................................... 236
Cache Support ........................................................................................................................... 237
Architecture HAL Porting .................................................................................................................. 238
HAL Architecture Porting Process ........................................................................................... 238
CDL Requirements ................................................................................................................... 244
12. Future developments .............................................................................................................................. 247
IV. The ISO Standard C and Math Libraries ................................................................................................... 249
13. C and math library overview .................................................................................................................. 251
Included non-ISO functions ............................................................................................................... 251
Math library compatibility modes ...................................................................................................... 252
matherr() ................................................................................................................................... 252
Thread-safety and re-entrancy .................................................................................................. 254
Some implementation details ............................................................................................................. 254
Thread safety ...................................................................................................................................... 256
C library startup .................................................................................................................................. 256
V. I/O Package (Device Drivers) ......................................................................................................................... 259
14. Introduction ............................................................................................................................................ 261
15. User API ................................................................................................................................................. 263
16. Serial driver details ................................................................................................................................. 265
Raw Serial Driver ............................................................................................................................... 265
Runtime Configuration ............................................................................................................. 265
API Details ................................................................................................................................ 267
cyg_io_write .................................................................................................................... 267
cyg_io_read ..................................................................................................................... 267
cyg_io_get_config ........................................................................................................... 267
cyg_io_set_config ............................................................................................................ 270
TTY driver .......................................................................................................................................... 271
Runtime configuration .............................................................................................................. 271
API details ................................................................................................................................. 272
17. How to Write a Driver ............................................................................................................................ 275
How to Write a Serial Hardware Interface Driver .............................................................................. 276
DevTab Entry ............................................................................................................................ 277
Serial Channel Structure ........................................................................................................... 277
Serial Functions Structure ......................................................................................................... 278
Callbacks ................................................................................................................................... 279
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