Hello, I seen the C251 Development Tools, as in large programs RTOS is required; in C251, which RTOS we have to use; Same as RTX51 (Full) or not available.
Hello, Thanks for your comments; it help me lot; We are working on telecom project >> PABX; thus we required more memory; code space; the end products are very competitive in prices; with very less qty required. so prices also one of the major factor to decide; any way thanks a lot for your kind suggestion; Now i feel that 16 bit are better than ARM or 32 bit. for us it is comfortable to redesign the current hardware.