Aaron Moore

MC9S08GT16 resistor/cap on reset line optional?

Discussion created by Aaron Moore on Mar 3, 2008
Latest reply on Mar 4, 2008 by David Payne
Hello,
 
I am wondering if the RC filter on the reset line is optional on the MC9S08GT16. The reason I ask is that i built a board without them and when I hook it up to my programmer it won't connect.
 
I am using the DEMO9S08QG8's BDM port to program my board.
 
Any advice on maybe why its not able to connect?
 
-Aaron
 
Edit:
 
To be more specific I am getting the error "The target MCU is not responding. Please turn MCU power off...."
 
 
Here is the output windows:
 
Windows NT detected.
USB HCS08/HCS12 MULTILINK detected - Flash Version 5.72
Frequency change to ~0hz.
Frequency change to ~0hz.
USB HCS08/HCS12 MULTILINK detected - Flash Version 5.72
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Frequency change to ~0hz.
Error: Can not enter background mode .
Frequency change to ~0hz.
Frequency change to ~0hz.
USB HCS08/HCS12 MULTILINK detected - Flash Version 5.72
Device is 9S08GT16A.
Mode is In-Circuit Debug.
IO registers loaded for MC9S08GT16A from C:\Program Files\Freescale\CodeWarrior for Microcontrollers V6.1\prog\REG\MCU100F.REG
Error: The debugger is currently not able to run
due to loss of contact with hardware.
No Link To Target
in>
 
 
Maybe its because I have an external osc? I have a 32.768Mhz osc
 


Message Edited by Kerms on 2008-03-03 10:07 PM

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