manual.txt :
> DELAY 1 us
---[DELAY]---

The DELAY instruction causes a delay in us. DELAY instruction does not
use any timers/counters. The NOP and JMP(Current Address+1) instructions
are used to make delay.
See https://github.com/LDmicro/LDmicro/wiki/DELAY-us



Delay(µs) designed specifically for short times, less than 100 us. Although the parameter (µs) is not limited. Simply more NOP's and JMP+1 will written to hex during the LD compilation time ;)
1-2 mS is too big for the Delay(µs) instruction.

Delay(µs) not for your purposes in this case.
Use minimal PLC cycle time and TON, TOF, ....

thanks for the updates, could you add a simple example using pull-up resistors with ansi c.



I made a program using ansi c, i attach the program (ansic_example.c and ansic_example.h ), proteus simulation and ladder software.

I used Pic C Complier 5

the other question is that if i want to use plc cycle time 0 as ldmicro does, in ansic is it correct just to call it using the smallest period of time pic c compiler can do with timer 1?

0.0016ms

image attach

to Alex
PLC cycle time "0" is equivalent to picture

In fact, the duration of the PLC cycle
is unstable, variable and uncertain, undefined.
PLC cycle time depends of the сomplexity of the
PlcCycle() algorithm.

to Alex

RTFM
After reset value of PORTB is unknown. May be 0, may be 0xFF.
Proteus fill it randomly.

*made it to me clear

Hello Ihor ;-)

Congratulations and many thx for the new version!
Many improvements! ;-)
GOTO and GOSUB seem to be functional and very useful. :-)

I also noticed, that you now enabled the UART-code for ANSIC...
I have one sugggestion for this:
You include full support functions for the UART in the produced c-source-file, but these are only working for AVR chips
and the main() and setupPlc() functions are very simple or better stub-functions. OK, they allow the file to be compiled and self-hosted but limited to AVR.
How about making the functions switchable using #ifndef ? ;-)
Eg:
....
#ifndef EXTERN_UART_Transmit
void UART_Transmit(unsigned char data) // AVR
{...}
#endif
#ifndef EXTERN_UART_Receive
unsigned char UART_Receive(void) // AVR
{...}
#endif
....
#ifndef EXTERN_setupPlc
void setupPlc(void)
{...}
#ifndef EXTERN_main
int main(void)
{...}
#endif

Regards and many thanks! ;-)

image 2

using this command (image attach) unused pins are ok too

Pay attension to the postcompile.bat.
I use it for small automatione of the routine.
After F5 Compile I call the C or ASM compiler and get another hex file, etc.
But you can delete postcompile.bat or change it as you wish

Perhaps on a fee basis.
Please contact [email protected]