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# 1   2010-05-09 19:44:54 Great Job

rfarrow2010
Member
From: FL. USA
Registered: 2010-02-04
Posts: 14

Great Job

I want to thank toni1000 and jingxizhang for a great project in ECGPrimer1.1.

I have built a simple ECG monitoring system using the Primer1 and their ECG program and modified the code to allow it to work in real-time for my application. This required removing the digital filtering code and replacing it with an analog filter on the input of the DAC. I know it's a terrible thing to replace digital with analog but I needed speed.  The display is only required while the unit is acquiring the ECG signal, about 5-10 beats. Then the code turns it off and displays only critical data once per beat. The ADC AWD (analog watchdog) is used to detect the R wave. The SysTick is set to 5msec. On each interrupt the code looks at the AWD to determine if R wave has begun.

I want to port the code to a Primer2. Do you have any suggestions on what kind of problems I may face? Are there any examples I could look at?

Thanks
Rob

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