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MDL-IDM-L35 frequency out of range error while trying to debug

David Knaggs
Prodigy 10 points

I have CCSv4.2.3.00004 microprocessor node locked single user liscence.  running on windows xp SP3 and am using an Stellaris BD-ICDI-B to connect to the IDM-L35 but every time I try to debug I get:

CORTEX_M3_0: Error connecting to the target: Frequency is out of range.

I have the target connection setup as Stellaris In-Circuit Debug Interface and the board selected as a Stellaris LM3S1958.

I have the 10 position debug cable going from the  ICDI to the IDM-L35.  If I press the reset button on the ICDI the IDM-L35 resets.

 

 

Contents of target config file:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<configurations XML_version="1.2" id="configurations_0">
    <configuration XML_version="1.2" id="Stellaris In-Circuit Debug Interface_0">
    <instance XML_version="1.2" desc="Stellaris In-Circuit Debug Interface_0" href="connections\Stellaris_ICDI_Connection.xml" id="Stellaris In-Circuit Debug Interface_0" xml="Stellaris_ICDI_Connection.xml" xmlpath="connections"/>
    <connection XML_version="1.2" id="Stellaris In-Circuit Debug Interface_0">
      <instance XML_version="1.2" href="drivers\stellaris_cs_dap.xml" id="drivers" xml="stellaris_cs_dap.xml" xmlpath="drivers"/>
      <instance XML_version="1.2" href="drivers\stellaris_cortex_m3.xml" id="drivers" xml="stellaris_cortex_m3.xml" xmlpath="drivers"/>
      <platform XML_version="1.2" id="platform_0">
        <instance XML_version="1.2" desc="Stellaris LM3S1958_0" href="Devices\lm3s1958.xml" id="Stellaris LM3S1958_0" xml="lm3s1958.xml" xmlpath="Devices"/>
      </platform>
    </connection>
  </configuration>
</configurations>

  • TI__Guru**** 173310 points

    I've seen the "frequency out of range" message in the past either when the JTAG is not connected properly or the board is not powered correctly.

    Are you using the 10-pin to 20-pin adapter provided with the MDL-IDM-L35 kit to connect to the ICDI board?

    Have you tried using the LM Flash programmer to program to the board via both serial and JTAG? That can help isolate if the issue is specific to CCS or the connection itself.