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It turns out that I can actually get 30 KHz (15 kHz at pin C3) when I use a timer preload value of 255 with an 8 MHz osc (1:1). The calculation for these values yields 2 MHz which is never going to h ...

I understand about there being a limit on servicing a timer ISR, but I can't seem to even get close to a practical limit. Switching to fastio did minimize the code required to toggle C3 and made a dif ...

I'm working with a PIC16F616 and am playing with different Timer0 ISR settings and can't quite make sense of some of the timings I'm experiencing. Some of my measurements (pin toggling within ISR) are ...

Hello all,

In the all mighty search for the least expensive PIC for the job, I've discovered the 16F506 which, unfortunately, does not have one single interrupt. I guess you get what you pay for. A ...

Here's a link to the latest Command Interface Spec for all Seiko Smart Label Printers (SLP):

http://www.doss.com/Docs/SLP%20Command%20Interface%20Specification%20v2_4.pdf

Thanks for your reply Michael.

The hardware is is simply RS-232. There are several commands, however the majority of the work appears to be done by a 'print literal' which prints the bit-mapped ima ...

Hello all,

I'm looking for some help with printing to Seiko thermal label printers. Specifically the "Smart Label" family of printers. These are bit mapped raster printers where every dot ...

Sorry, wrong p/n. I would use something like an 18F2455, 2550, etc.

I need to interface to a custom app running on a PC via USB. Normally I do this using the FTDI 232 chip which creates a virtual COM port on the PC. I'm planning on using an 18F part in my design anywa ...

Thanks PCM, you've always got great info - really appreciate it. I was hoping to not have to change micros. The alternate parts with interrupts cost a few dimes more. Seems my customers always want as ...

Thanks for your help adesport. Fortunately there appears to be a migration path up to other pin compatible devices like the 16F616 and 16F676.

Too bad I didn't notice that when I selected the part. Well maybe I can use the WDT as pseudo timer ISR?

I'm attempting to implement a timer0 interrupt, but it's looking (according to the datasheet) like this may not be possible. Is there a way to create an RTC ISR without using the WDT?

Got it all sorted out. My biggest problem was the order of precedence in the #define statements.

Thanks so much for everyone's insightful input.

BR's.

I've narrowed the problem down to what looks to be an issue with using the ADC variable result versus a fixed ADC value. I've tried all sizes of variables, etc. May be a compiler problem.

Delay_T ...