RE: Building an Event Counter / Rotary Measurement device for $15

shabaz — Fri, 20 Sep 2013 16:14:58 GMT

Hello Tom,

I'm so sorry, it looks like I missed out a step :-(

Processor Expert has a set of features, but it is possible to increase them for greater functionality.

I had installed a set of features from this site - but use this direct link to the zip file (about 23 MByte).

This gives you some great features like a WAIT1_waitms. If that is the only one that is missing, in theory you could replace it with just a 'for' loop (e.g. a loop of 100000), the time period is non-critical, and it will still work. The best way is to download the additional features from that site, and the wait feature will provide a sleep.

By the way, when you download the file from that site, you may find you cannot extract it. The Windows built-in unzip capability did not work for me. I had to use 7-zip to extract it.

When you extract, it gives two files in the PEupd sub-folder in the zip file.

These can be imported into CodeWarrior using the menu Processor Expert->Import Components.

I will add this information to the page.

By the way, since you are building the code, don't forget after you are done with Processor Expert changes, when you compile, afterwards, add the | 0x03 mentioned above (an example is pasted below) and compile again. This is to enable the pull-ups (otherwise you will need external pull-ups). The Processor Expert components that I used did not have a pull-up capability. If I add more components from Processor Expert, then the | 0x03 gets wiped since technically this is not advisable to modify the auto-generated code. I'm sure it is resolvable, but I didn't spend time on that.

PORTC_PCR13 = (uint32_t)((PORTC_PCR13 & (uint32_t)~(uint32_t)(

PORT_PCR_IRQC(0x05)

)) | (uint32_t)(

PORT_PCR_ISF_MASK |

PORT_PCR_IRQC(0x0A)

)) | 0x03;

RE: Building an Event Counter / Rotary Measurement device for $15

e14 Contributor — Fri, 20 Sep 2013 15:58:39 GMT

Line 134 in processorexpert.c gave me "undefined reference to WAIT1_waitms. Seems the function isn't declared anywhere.

RE: Building an Event Counter / Rotary Measurement device for $15

mcb1 — Sat, 14 Sep 2013 06:48:35 GMT

Shabaz

This is a great little tool, with many uses for quick and easy applications.

Thanks

Mark