Freescale Semiconductor S08 manual Development Support, Power, Reset Switch, Clock Source, RS-232

Page 13

Development Support

2.4 Development Support

Application development and debug for the MC9S08AW60 is supported through a 6-pin BDM header (CON8). The pinout is as follows:

Table 2-1. BDM Connector (CON8) Pinout

BKGD

1

2

GND

 

 

 

 

NC

3

4

RESET

 

 

 

 

NC

5

6

VDD

2.5 Power

The DEMO9S08AW60LED is powered externally through the barrel connector CON2. This connector is a 2.5 mm, center positive connector. Voltage supplied through this connector should be positive 12 volts DC. This is also the supply voltage for the LED light box.

The DEMO9S08AW60LED can be run with VDD set to 5 or 3 volts. To run the board at 3V, move jumper JP1 to the 1-2, 3V position.

LED D5 turns green to let you know that power has been correctly applied to the board.

2.6 Reset Switch

The reset switch (SW5) provides a way to apply a reset to the MCU. The reset switch is connected directly to the RESET signal of the MCU. A 10 kΩ pullup resistor to VDD on the RESET signal allows for normal operation. When the reset switch is pressed, the RESET signal is grounded and the MCU recognizes a reset.

2.7 Clock Source

An on-board 16 MHz crystal (X1) is connected between the XTAL and EXTAL pins of the MCU. This offers flexibility on clock source selection. Refer to the MC9S08AW60 data sheet for details on how to use the internal clock generation (ICG) module to generate the system clocks for the MCU.

2.8 RS-232

An RS-232 translator provides RS-232 communication on COM connector P2. This connector is a 9-pin Dsub right angle connector. TXD and RXD signals are routed from the MCU to the RS-232 transceiver.

Table 2-2 . RS-232 Connections

MCU Port

COM Signal

I/O Port Connector

 

 

 

PTE0/TXD1

TXD OUT

P2-2

 

 

 

PTE1/RXD1

RXD IN

P2-3

 

 

 

LED Lighting Control using the MC9S08AW60, Rev. 1

Freescale Semiconductor

13

Page 12 Page 14
Image 13
Page 12 Page 14
Contents LED Lighting Control Using the MC9S08AW60 Page Revision History LED Lighting Control using the MC9S08AW60Designer Reference Manual Freescale Semiconductor Table of Contents Appendix a Schematics Appendix B Bill of Materials Chapter Introduction FeaturesIntroduction MC9S08AW60 System OverviewDevices in the MC9S08AW60/48/32/16 Series Peripherals Available per Package Type Introduction LED Lighting Control using the MC9S08AW60, Rev AW60 Control Board Chapter Hardware DescriptionDEMO9S08AW60LED Layout DEMO9S08AW60LED FeaturesReset Switch PowerDevelopment Support Clock SourceLED Indicators Pushbutton SwitchesUser Options ADC InterfaceIIC Port Other I/O ConnectorsSCI Port SPI PortLED Light Box Interface PWM Port10. Sensor Interface Type a 11. Sensor Interface Type H 12. Temperature Sensor Input13. User Assignable Input LED Driving Board RGB LED Chip LED Driver Design ProceduresBoost Converter Current Sense ResistorEquations for Boost Converter Freescale Semiconductor Firmware Flow Main Program Chapter Firmware DescriptionFirmware Flow PWM Adjustment PC Control ModeUser Interface Menu Standalone Mode Firmware Files Freescale Semiconductor Hardware and Software Setup Chapter Demo SetupHardware Setup PC Software SetupEcho Typed Characters Setting Demo 1 Demonstration Display Demo ExamplesDemo 3 Auto White Balance Control Demo 2 Preset Colors DisplayDemo 4 PWM Output Frequency Control Demo 5 Full Manual ControlProgram the MCU Flash TroubleshootingDemo Setup Appendix a Schematics LED Lighting Control using the MC9S08AW60, Rev LED Lighting Control using the MC9S08AW60, Rev LED Lighting Control using the MC9S08AW60, Rev LED Lighting Control using the MC9S08AW60, Rev LED Lighting Control using the MC9S08AW60, Rev Appendix B Bill of Materials Part Description Quantity Value Designators BOM for AW60 Control BoardValue Designators BOM for LED Driving BoardLED Lighting Control using the MC9S08AW60, Rev Page How to Reach Us
Top Page Image Contents