This is the mail archive of the ecos-discuss@sourceware.org mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

How to integrate two different 16x5x DUART hardware into a application?


On my target board, I use LPC2220 as processor, there is another Phlips 16C2550B DUART chip.
In my application, I should make use of 4 UART channels.


As I looked over the serial infrastructure of eCos, I think it is hard to use the "16x5x generic serial device drivers" for both chip concurrently.
1. The "ser_16x5x.c" rely on a "CYGDAT_IO_SERIAL_GENERIC_16X5X_INL", and this macro has been defined in "ARM LPC2XXX serial device drivers" package. How to add 16C2550B's description info to "ser_16x5x.c"?
2. "ser_16x5x.c" use "CYGPRI_IO_SERIAL_GENERIC_16X5X_STEP" macro to reflect delta of UART registers. In LPC2XXX, the UART's register step is 4 bytes, while on my target board, 16C2550B has been designed with register step 2 bytes. How to solve this condition?


Thanks.



--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]