Skip to content

Latest commit

 

History

History
 
 

DOUBLECOM

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
 
 
 
 
 
 
 
 

STM8 eForth "DOUBLECOM" configuration

This folder contains the STM8 eForth configuration files for a full-featured system that communicates through a half-duplex simulated serial interface but that also provides the words ?RX and TX! for the STM8 UART.

The binary release contains the image DOUBLECOM, which simulates a 2-wire half-duplex communications interface on PD1/SWIM.

The recommended circuit for connection to a USB RS232 "TTL" adapter is this:

STM8 device    .      .----o serial TxD "TTL"
               .      |      (e.g. "PL2303" USB serial converter)
               .     ---
               .     / \  1N4148
               .     ---
ICP header     .      |
               .      *----o serial RxD "TTL
               .      |
STM8 PD1/SWIM-->>-----*----o ST-LINK SWIM
               .
NRST----------->>----------o ST-LINK NRST
               .
GND------------>>-----*----o ST-LINK GND
               .      |
................      .----o serial GND

e4thcom fully supports STM8EF 2 wire connections, and an example picocom configuration for half-duplex communication is described here.