Search found 103 matches

Thank you, Ttelmah and Temtronic, for your suggestions.
Our temperature logger has no all-round insulator inside the plastic casing. Also, our battery is not able to support a heater because of its l ...

Thank you, Ttelmah and Temtronic. When we designed this product, we actually did not intend for it to be used below -40°C, so we did not choose components rated to -45°C. For now, we will do our bes ...

Thank you, Ttelmah and Temtronic. We will enable the BROWNOUT and PUT and continue to observe. This product is a cold-chain temperature logger. It uses a lithium thionyl chloride (Li-SOCl2) battery ra ...

Thank you, Telmah.

In the field, the bootloader mode is unlikely to happen in normal use, as that would require a combination of MCU reset and external button press. There is a temperature sensor o ...

Thank you, Ttelmah.

My main concern is not about prevention from external reading and writing, but I have observed some cases of corruption of program memory during runtime. The device can be expos ...

Environment: PIC18LF46K22, MPLAB 8.92, CCS v5.115

I am trying to resolve an issue I am facing. I am using a bootloader and a serial loaded application on the PIC18LF46K22.

Bootloader: #fuses WRT ...

Thank you, Ttelmah. I see your point.

For a moment, I forgot that RAM is volatile memory.

I have managed to get the ROM usage down to 95% (from 100%) by doing the following (I have “opt compress” in my code).
1. Abbreviating some text in fprintf() statements.
2. Consolidating sequent ...

Thank you, Newguy and Ttelmah. Yes, the example helps.

1. If I am passing a string constant declared in an array, I will not need to use the directive “#device PASS_STRINGS=IN_RAM”. Is this cor ...

Thank you, everyone, for your ideas.

So far, by shortening the text in fprintf statements by using abbreviations for some words, I have managed to get the ROM usage down to 97% (not much, but at le ...

Thank you, Ttelmah and Temtronic.

My code can now compile, but with 99% ROM usage (I removed a function that is not called):
Memory usage: ROM=99% RAM=61% - 67%

I am still looking into h ...

I am using the PIC18LF46K22 MCU, MPLAB IDE v8.92, and CCS C compiler v5.115.

I am referencing this helpful reply from Ttelmah regarding optimizing code (https://ccsinfo.com/forum/viewtopic.php?t=59 ...

Thank you, Ttelmah.

1. Is there a CCS statement I can use to check, at any time, whether the watchdog timer is enabled (ON) or not (OFF)?
2. Is there a CCS statement I can use to check, at any t ...

Thank you, Ttelmah, for your input.

From some testing, I observed the following:
1. If NOWDT is explicitly placed in the fuses, there seems to be no way to turn ON the watchdog timer.
2. Once WDT ...

Thank you, Ttelmah.

1. Currently, button2 is used to perform a certain function if it is pressed for at least 3 seconds:timeout_ct = 0;

while (input(button2_pin)==0 && timeo ...