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Discussion Groups | 68HC12 | Re: About m68evb912c32 evaluation board
Join our technical discussions about Freescale Microcontrollers: M68HC12. (Freescale Semiconductor is a Subsidiary of Motorola).
About m68evb912c32 evaluation board - cosming - Jan 14 3:36:00 2004
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Hello, I have an eval. board with 9s12c32 uP and i'm trying to write a simple test application for it. I use Codewarrior 3 from Metrowerks. I have write a C application which works ok on simulator but when I'm trying to write the Srecord into the uP flash i have some errors. When I use the serial monitor "go" command sometimes the test application works sometimes doesn't. Somebody knows what i have done wrong? Thank you |
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Re: About m68evb912c32 evaluation board - Zámbó Béla - Jan 14 4:07:00 2004
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Hello, I have similar difficulties with my 9s12c32 board. I can't use FBULK and FLOAD commands through any terminal. (Other commands have seen usable!) I'm using Dbug-12 version 4.0.0b18 with TechnologicalArts MicroBDM12SX I can burn flash NoICE only but sometimes not - I don't know what it depends.. Thank You zbéla ----- Original Message ----- From: "cosming" <> To: <> Sent: Wednesday, January 14, 2004 9:36 AM Subject: [68HC12] About m68evb912c32 evaluation board > Hello, > I have an eval. board with 9s12c32 uP and i'm trying to write > a simple test application for it. I use Codewarrior 3 from Metrowerks. > I have write a C application which works ok on simulator but when > I'm trying to write the Srecord into the uP flash i have some errors. > When I use the serial monitor "go" command sometimes the test > application works sometimes doesn't. > Somebody knows what i have done wrong? > Thank you > --------------------------------------------------------To learn more about Motorola Microcontrollers, please visit > http://www.motorola.com/mcu > o learn more about Motorola Microcontrollers, please visit > http://www.motorola.com/mcu |
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Re: About m68evb912c32 evaluation board - zeta_alpha2002 - Jan 14 9:34:00 2004
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Mr. Bela How is the crystal oscillator configured on your board? Colpitts or Pierce? If Colpitts is the XCLK open or pulled up high? If Pierce is the XCLK pulled low? Symptom tells me it is clocking problem.. |
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Re: Re: About m68evb912c32 evaluation board - Zámbó Béla - Jan 14 10:05:00 2004
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Hello, Thank You for the idea... I use Pierce osc with 16MHz crystal, PE7 = 0 at reset (10K pull down resistor), XFC tied to VddPLL (PLL not used) The circuit analog with as recommended "Figure 2-6 Pierce Oscillator Connections (PE7=0)" (MC9S12C Family Device User Guide V01.01) Regards, zbéla ----- Original Message ----- From: "zeta_alpha2002" <> To: <> Sent: Wednesday, January 14, 2004 3:34 PM Subject: [68HC12] Re: About m68evb912c32 evaluation board > Mr. Bela > > How is the crystal oscillator configured on your board? Colpitts or > Pierce? > > If Colpitts is the XCLK open or pulled up high? If Pierce is the > XCLK pulled low? > > Symptom tells me it is clocking problem.. > --------------------------------------------------------To learn more about Motorola Microcontrollers, please visit > http://www.motorola.com/mcu > o learn more about Motorola Microcontrollers, please visit > http://www.motorola.com/mcu |
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Re: About m68evb912c32 evaluation board - zeta_alpha2002 - Jan 14 15:07:00 2004
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For experiment, change the crystal to 8 MHz to see if it is better. --- In , "Zámbó Béla" <zbela@f...> wrote: > Hello, > Thank You for the idea... > I use Pierce osc with 16MHz crystal, > PE7 = 0 at reset (10K pull down resistor), > XFC tied to VddPLL (PLL not used) > The circuit analog with as recommended > "Figure 2-6 Pierce Oscillator Connections (PE7=0)" > (MC9S12C Family Device User Guide V01.01) > Regards, > zbéla |
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Re: Re: About m68evb912c32 evaluation board - Zámbó Béla - Jan 14 15:20:00 2004
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I have already tried it, had no effect. Regards, zbela ----- Original Message ----- From: "zeta_alpha2002" <> To: <> Sent: Wednesday, January 14, 2004 9:07 PM Subject: [68HC12] Re: About m68evb912c32 evaluation board For experiment, change the crystal to 8 MHz to see if it is better. --- In , "Zámbó Béla" <zbela@f...> wrote: > Hello, > Thank You for the idea... > I use Pierce osc with 16MHz crystal, > PE7 = 0 at reset (10K pull down resistor), > XFC tied to VddPLL (PLL not used) > The circuit analog with as recommended > "Figure 2-6 Pierce Oscillator Connections (PE7=0)" > (MC9S12C Family Device User Guide V01.01) > Regards, > zbéla --------------------------------------------------------To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu o learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu |
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