We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hello I am using Builtin Baudrate generator for two serial ports UART0 and UART1 in P89C669.Two Serial ports are working properly. But I am not able to use Timer2 for other timing functions ... Kindly help in this regards.
This is in the chip errata for P89C669: when you use Baudrate Generator, the TF2 flag will not trigger the Timer2 interrupt service routine. There is no workaround for this silicon bug.
A question: Where are you getting P89C669 these days? It is no longer manufactured. Are you buying in quantity?
Thanks Jonny Doin for your reply. I am using this P89C669 Chip for the requirement of Dual UART, Three timers and program memory of 64K. Is there any other chip (PIN compatible)which can support the above requirements. Regards R.Sudhakar
http://www.keil.com/dd/search_parm.asp
"I am using this P89C669 Chip for "
My question was: do you have the '669 in your hands? How many can you buy? Maybe a local distributor or a gray market broker can supply you with parts, but that vaporware from Philips is no longer being manufactured for quite a while now.