The Timers module recently implemented in Astrobe for Cortex-M7 allows for several independent timers to be used in an application. This module will replace the existing Timer module in future releases of Astrobe for Cortex-M3 and M4.
In the meantime, the attached source code files can be used with Astrobe for Cortex-M3 with LPC175x/6x/8x targets. The demo has been tested on the LPC1768 mbed board. It is a modified version of Blinker which uses two independent timers to illustrate four different ways to implement a half-second delay.