http://virtual-shop.info/esp14_2.jpg
http://virtual-shop.info/esp14_1.jpg
PIN 1 M PC5 STM8 PC5 port
PIN 2 M_PC6 STM8 PC6 port
PIN 3 M_PC7 STM8 PC7 mouth
PIN 4 GND GND
PIN 5 M_PD3 STM8 PD3 port
PIN 6 M_PD4 STM8 PD4 port
PIN 7 M_NRST STM8 NRST port
PIN 8 GND common ground
PIN 9 M_PD2 STM8 PD2 port
PIN 10 M_PD5 STM8 PD5 port
PIN 11 M_PD6 STM8 PD6 port
PIN 12 M_PA1 STM8 PA1 port or crystal input port
PIN 13 M_PA2 STM8 PA2 port or oscillator output
PIN 14 E_GPIO0 ESP8266 GPIO0 port:
PIN 15 M_VCAP STM8 VCAP port
PIN 16 M_VDD STM8 power supply pin
PIN 17 E_VDD ESP8266 power supply pin
PIN 18 M_PA3 STM8 PA3 port
PIN 19 M_PB5 STM8 PB5 port
PIN 20 M_PB4 STM8 PB4 port
PIN 21 M_PC3 STM8 PC3 port
PIN 22 M_PC4 STM8 PC4 port