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Talk with serial

Using a dumb terminal (minicom) 115200 board No parity 8 bits 1 stop bit, no flow control (might have to exit minicom and start again for the flow control setting to take). What you type on the dumb terminal comes back.

chmod 666 /dev/ttyUSB0

picocom /dev/ttyUSB0 --baud 115200 --parity n --databits 8 --stopbits 1 --flow n

Note

Plan

raspberry side:

  • static implementation
  • numbers
  • arithmetics

client side:

  • <termios.h> musl
tcsetattr
  • <unistd.h> musl
write
read
STDIN_FILENO
STDOUT_FILENO
  • <stdio.h> implement/delete!?
printf
snprintf
  • <string.h> musl
strlen
strcat
strncpy
strcmp

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Forth interpreter for bare metal raspberry pi.

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