Use the UART1 in a basic IrDA communication receive/transmit mode.

  ******************** (C)COPYRIGHT 2014 STMicroelectronics *******************
  * @file    UART1/UART1_IrDA/readme.txt 
  * @author  MCD Application Team
  * @version V2.2.0
  * @date    30-September-2014
  * @brief   Description of the UART1 IrDA Example.
  ******************************************************************************
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  

Example description

The example provides two IrDA programs: transmitter / receiver and requires two boards to be able to run the full demonstration:

• one board will act as IrDA transmitter
• one board will act as IrDA receiver

On the Transmitter board: Five pins, configured in input floating mode, are used to select the byte to be sent at each pin state change The byte can be:

• 0x00 if no key pressed
• 0x01 if Joystick Sel pressed
• 0x02 if Joystick Down pressed
• 0x03 if Joystick Left pressed
• 0x04 if Joystick Right pressed
• 0x05 if Joystick Up pressed

On the Receiver board: Four leds are used to show which byte is received.

• LED4 toggle when 0x05 is received (Joystick Up pressed in Transmitter board)
• LED3 toggle when 0x02 is received (Joystick Down pressed in Transmitter board)
• LED2 toggle when 0x03 is received (Joystick Left pressed in Transmitter board)
• LED1 toggle when 0x04 is received (Joystick Right pressed in Transmitter board)
• LED1 to LED4 toggle when 0x01 is received (Joystick Sel pressed in Transmitter board)

USART configured as follow:

• BaudRate = 9600 baud
• Word Length = 8 Bits
• One Stop Bit
• No parity
• Receive and transmit enabled

Directory contents

• UART1\UART1_IrDA\Receive\main.c Main file containing the "main" function
• UART1\UART1_IrDA\Receive\stm8s_conf.h Library Configuration file
• UART1\UART1_IrDA\Receive\stm8s_it.c Interrupt routines source (not used in this example)
• UART1\UART1_IrDA\Receive\stm8s_it.h Interrupt routines declaration

Hardware and Software environment

• This example runs on STM8S High density and Low density devices and on STM8A High density devices.

• This example has been tested with STMicroelectronics STM8/128-EVAL evaluation board and can be easily tailored to any other development board.

• STM8/128-EVAL Set-up
  • IrDA tranceiver (U14) is used, make sure that JP10 jumper must be fitted.
  • Four leds LD1 to LD4 are used.
  • Joystick

How to use it ?

In order to make the program work, you must do the following :

• Copy all source files from this example folder to the template folder under Project
• Open your preferred toolchain
• Rebuild all files and load your image into target memory
• Run the example

Note:

• High-Density STM8A devices are the STM8AF52xx STM8AF6269/8x/Ax, STM8AF51xx, and STM8AF6169/7x/8x/9x/Ax microcontrollers where the Flash memory density ranges between 32 to 128 Kbytes
• Medium-Density STM8A devices are the STM8AF622x/4x, STM8AF6266/68, STM8AF612x/4x, and STM8AF6166/68 microcontrollers where the Flash memory density ranges between 8 to 32 Kbytes
• High-Density STM8S devices are the STM8S207xx, STM8S007 and STM8S208xx microcontrollers where the Flash memory density ranges between 32 to 128 Kbytes.
• Medium-Density STM8S devices are the STM8S105x and STM8S005 microcontrollers where the Flash memory density ranges between 16 to 32-Kbytes.
• Low-Density STM8S devices are the STM8S103xx, STM8S003 and STM8S903xx microcontrollers where the Flash density is 8 Kbytes.

© COPYRIGHT STMicroelectronics