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I prefer using C51 from Silicon Laboratories because:
- it is fast (one clock cycle = one machine cycle and 70% of instructions takes 1 or 2 cycles),
- has jtag,
- has good quality ADCs (from 8 to 24 bits resolution depending on model, my favourite one is F060 with two 16bit 1MSps ADCs) and...
Do you use programmer for Silicon Laboratories microcontrollers shown on Dilogic website?
Anyone has it working?
I've checked my circuit twice and have not found any mistake but FlashLoad Lite program always show message "Hardware not detected".
I tried different LPT port settings (SPP, ECP...
c# usb port
The simplest way I know is to use one of USB->Serial or USB->Parallel converter chip manufactured by FTDI (www.ftdichip.com). It's hardware part.
In Your PC software You can use library (FT2XX.dll or FT2XX.lib) to send something to this chip. Driver (with libraries) You can download...
Re: why one port is made open -drain. & y to use pullup
Presence or absence of open drain outputs doesn't matter for bidirectional signalling.
Look at ports P1, P2 & P3 - it's possible to use bidirectional signals on them but these ports don't have open drain outputs (in standard C51).
It's...
Re: why Stack pointr of 8051 increase after pushin in sum da
Pushing byte onto stack in C51 always will increment stack pointer (SP), because of C51 architecture.
After reset SP is equal to 0x07 and first pushed byte will be written at address 0x08, because at first SP is incremented and then...
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