I am using RxTiny with the intention of running "parallel" multiple tasks. The problem is the next task does not run unless the current task halts (by using os calls like OS_DELAY() or OS_WAIT()). Seemed like the timeout does not occurred to allow next task to run. I am debugging using the uVision Debugger. Could this have some effect? I am not using Timer0 which the documentation said was used by RxTiny for time ticks. I looked at the RxTiny examples. Did not see anything that was different than what I am doing. Thanks for your help.
RTX Tiny is not preemptive (IE. it will not stop a task in mid operation). The task must stop itself then another task will be started if ready. See:
http://www.keil.com/c166/tr166.htm
Hi Scott, Thanks for your reply. Pg 242 of the 166/167 Assembler and Utilities manual described RxTiny task switching and timeout. Preemptive is descrived on pg 244 that an RxTiny task needs a timeout first before it can switch, instead of switching at any time when a higher priority task arrived. The RxTiny documentation does not say anything about stopping a task to start another task. Confg_tny.a66 has a TIMESHARING variable which dictates the timeout periods. Comments? Thanks for your help.