Building simulink model into eZdsp

I am using ccs 3.3, TMS320F2812 eZdsp and matlab version 2011. I created simple spwm simulink model. When I try to build this model into eZdsp, it shows the following errors. Could you help me to solve these problem please?

1. "Block 'tl1/Subsystem/Repeating Sequence1/Clock' uses continuous time, which is not supported with the current configuration. Consider selecting the support 'continuous time' option on the Configuration Parameters > Code Generation > Interface pane"

2. "Block 'tl1/Subsystem/Repeating Sequence1/startTime' uses continuous time, which is not supported with the current configuration. Consider selecting the support 'continuous time' option on the Configuration Parameters > Code Generation > Interface pane"

3."Block 'tl1/Subsystem/Sine Wave' uses continuous time, which is not supported with the current configuration. Consider selecting the support 'continuous time' option on the Configuration Parameters > Code Generation > Interface pane"

4."Block 'tl1/Subsystem/Sine Wave2' uses continuous time, which is not supported with the current configuration. Consider selecting the support 'continuous time' option on the Configuration Parameters > Code Generation > Interface pane"

5."Block 'tl1/Subsystem/Sine Wave4' uses continuous time, which is not supported with the current configuration. Consider selecting the support 'continuous time' option on the Configuration Parameters > Code Generation > Interface pane"