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Arduino-NANO-R4-CommandLine_Parser

Arduino: Nano-R4CommandLine_Parser

An example of a simple ASCII commandline- interface (CLI) with elementary File- functions. Gives a little more comfort on Commandline. Supports VT100-Terminal emulation (like TeraTerm, PUTTY, GTKTerm and other) on the USB-Port.

This project keeps a set of helpful functions for the Arduino NANO-R4 with SD-Card. IMG_0578_comp Picture shows an UNO-R4 minima with SD-Card, Battery bufferd RTC, BME680 and 20x4 LCD on I2C- bus. The NANO-R4 will work in the the same hardeware envirement

The software supports the CPU internal RTC function and 4ticks/sec callback function for real-time applications. The NANO-R4 is clocked by a Quarz- reference and the CPU-RTC is working well - as better as the UNO-R4 CPU-RTC! In an equal form there is a 100 Hz GPT- Timer running on callback event.

AUTO - shows the ADC 0-3 voltage (Average of 10 measurements)
CD, MD, RD - directory handling
CONFIG - shows the SPI- configuration
COPY - copy a file from => to filename
DEL - removing file
DIR - shows the directory
DATE and TIME - get and set time/date value
TYPE - list an ASCII-File on your terminal
CLS - clear the VT100 screen and set the cursor position top-left
TEMP - not implemented
VER - shows some software informations
VOL - list the SD-Card information
XREC - XModem-CRC upload to uC uC SD-Card
XTRAN - XModem download from uC uC SD-Card
YREC - YMODEM-1K CRC upload to uC SD-Card (multible file transfer is possible)

Needed:

  • the SD-Card library must be available

X/Y-Modem File Transfer

Most of the Terminal emulations supports X-Modem File transfer. I think, it is helpful to transfer some files to/from the uC without stopping the full environment or removing the SD-Card from the uC.
From uC to host: The XModem transfer in 128Byte/Checksum and 1kB/CRC was implemented. YModem multiple filetransfers in this direction could be helpful but not implemented.each file must be defined on the commandline like XModem. Transfer rate: In the 128Byte-Transfermode the transfer rate is as higher as 20kByte/s and up to 70kByte/s in CRC-Mode.
The YModem transfer from host to uC reached transfer rates 23-60 kByte/s in my tests. The XModem transfer rate is 6-10 kByte/s in 128Byte mode and 20-50 kByte/s in 1k-CRC.