ProPi configuration

This is the official PRO PI documentation, in addition to the PRO PI configuration guide, examples can be downloaded.

The reference image tested is version: 2021-03-04-raspios-buster-armhf-lite, which can be downloaded from this link.

To program the Pro Pi, proceed as follows:

  1. connect the programming cable to the audio jack of the Pro Pi and to the pc’s usb

CAUTION: Use only the official programming cable!

2) Feeding Pro Pi

3) Follow the instructions with reference to the CM3+ module found at  RaspberryPi.com

After the programming procedure is completed, then modify the system by following the directions below:

– remove “console=serial0,nnnn” in the file  /boot/cmdline.txt 

– install sudo apt-get install i2c-tools

– In the file “/lib/udev/hwclock-set” comment out the following lines:

     #if [ -e /run/systemd/system ] ; then
     #    exit 0
     #fi

Then integrate the following parts into the indicated files:

# Rows to be added to the file  /boot/config.txt for ProPI FULL setup.

# Some peripherals in the SuperLight and Light versions are not present

# I2C

# i2c0 -> hardware device

dtparam=i2c0=on
dtoverlay=i2c0,pins_28_29

# i2c1 -> camera and display.

dtparam=i2c0=on
dtoverlay=i2c0,pins_28_29

# SPI

dtparam=spi=on

# spi0 -> can bus

dtoverlay=spi0-cs,cs0_pin=8,cs1_pin=disable

# spi2 -> expansion cn12

dtoverlay=spi2-2cs

# UART

enable_uart=1

dtoverlay=pi3-disable-bt

dtoverlay=pi3-disable-wifi

core_freq=250

# uart0 MC60 pin 14,15 ttyAMA0

dtparam=uart0=on

# uart1 rs485 or rs232 pins 32 and 33 ttyS0

dtoverlay=uart1,txd1_pin=32,rxd1_pin=33

# CAN

dtoverlay=mcp2515-can0,oscillator=16000000,interrupt=5

# GPIO

# gpio4 MC60 DCD

gpio=4=ip

# gpio5 interrupt can

gpio=5=ip

# gpio6 – system reboot – Brought high resets the system

gpio=6=op,dl

# gpio7 MC60 DTR

gpio=7=ip

# gpio21 sw1 – Input button status – 0 = pressure

gpio=21=ip

# gpio22 – auxiliary output – Brought high activates n-mos.

gpio=22=op,dl

# gpio23 – green auxiliary led.

gpio=23=op,dh

# gpio24 – Power gsm disable – 0:on MC60 / 1:off MC60

gpio=24=op,dh

# gpio25 cfg hw2 – Input hw configuration.

gpio=25=ip

# gpio26 MC60 EINT

gpio=26=ip

# gpio27 cfg hw1 – Input hw configuration.

gpio=27=ip

# gpio31 enable RS485 line – Brought high enables transmission.

gpio=31=op,dl

# gpio34 pwrkey MC60 – Brought high brings the pwrkey = 0

gpio=34=op,dl

# gpio35 netlight MC60 – Input power status connection.

gpio=35=ip

# gpio36 pin3 cn12 connector

gpio=36=ip

# gpio37 pin5 cn12 connector

gpio=37=ip

# gpio38 pin7 cn12 connector

gpio=38=ip

# gpio39 pin9 cn12 connector

gpio=39=ip

# AUDIO

# Audio jack

dtoverlay=audremap,swap_lr,enable_jack

# Microphone

dtparam=i2s=on

# Rows to add to /etc/rc.local file for ProPI FULL setup.

# Adding rtc device

echo ds1672 0x68 > /sys/class/i2c-adapter/i2c-0/new_device

# Charge log check

regRead=”$(i2cget -y -f 0 0x68 0x05)”

regSet=”0xaa” # 0xaa=2k2+diode / 0xa6=2k2

if [ “$regRead” != “$regSet” ]; then

echo “RTC: set reg” $regSet

i2cset -y -f 0 0x68 0x05 $regSet

fi

# Rows to add to /etc/modules file for ProPI FULL setup.

i2c-bcm2708

i2c-dev

rtc-ds1672

Downloadable examples