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Discussion Groups | AVRclub | [AVR club] problem with downloading programs to stk501
Atmel AVR Microcontroller discussion group.
[AVR club] problem with downloading programs to stk501 - gupta_prag123 - Sep 29 8:56:21 2008
hello friends,
i am trying ISP downloading mode, to program atmega1281 controller
using stk500 and 501.
the problem is that, it shows error message that the ISP freq should
be less than 1/4 of the target..
I have set freq of 8 MHz in the configuration options of the Project.
on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
connected as 1 to 2.
the target software clock, is set at 3.68 Mhz.
where is the problem?
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
i am trying ISP downloading mode, to program atmega1281 controller
using stk500 and 501.
the problem is that, it shows error message that the ISP freq should
be less than 1/4 of the target..
I have set freq of 8 MHz in the configuration options of the Project.
on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
connected as 1 to 2.
the target software clock, is set at 3.68 Mhz.
where is the problem?
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
[AVR club] Re: problem with downloading programs to stk501 - bert_hoogenboom - Sep 29 10:00:52 2008
The problem may be in the fact that the processor is running on its
internal clock, this is by defauld 1MHz
regards bert
--- In a...@yahoogroups.com, "gupta_prag123"
wrote:
>
> hello friends,
>
> i am trying ISP downloading mode, to program atmega1281 controller
> using stk500 and 501.
>
> the problem is that, it shows error message that the ISP freq
should
> be less than 1/4 of the target..
>
> I have set freq of 8 MHz in the configuration options of the
Project.
> on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
> connected as 1 to 2.
> the target software clock, is set at 3.68 Mhz.
>
> where is the problem?
>
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
Re: [AVR club] problem with downloading programs to stk501 - raj - Sep 30 8:06:26 2008
=A0
Dear Pragati,
Set freq of ISP to 115.2kHz or lesser option,it may also be=
32KHz.If you are using Ext clock source, then check the ISP freq should be=
less than 1/8 of the clock source.You must nention your Contact no for ins=
tant help.
regards,
kundan
09811675688
On Mon, 29 Sep 2008 gupta_prag123 wrote :
>hello friends,
>
>i am trying ISP downloading mode, to program atmega1281 controller
>using stk500 and 501.
>
>the problem is that, it shows error message that the ISP freq should
>be less than 1/4 of the target..
>
>I have set freq of 8 MHz in the configuration options of the Project.
>on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
>connected as 1 to 2.
>the target software clock, is set at 3.68 Mhz.
>
>where is the problem?
>
Sr. FAE=0D
Excel Eltech inc. =0D
A-76, EOK. New Delhi=0D
110065=0D
ph:9811675688=0D
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
Dear Pragati,
Set freq of ISP to 115.2kHz or lesser option,it may also be=
32KHz.If you are using Ext clock source, then check the ISP freq should be=
less than 1/8 of the clock source.You must nention your Contact no for ins=
tant help.
regards,
kundan
09811675688
On Mon, 29 Sep 2008 gupta_prag123 wrote :
>hello friends,
>
>i am trying ISP downloading mode, to program atmega1281 controller
>using stk500 and 501.
>
>the problem is that, it shows error message that the ISP freq should
>be less than 1/4 of the target..
>
>I have set freq of 8 MHz in the configuration options of the Project.
>on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
>connected as 1 to 2.
>the target software clock, is set at 3.68 Mhz.
>
>where is the problem?
>
Sr. FAE=0D
Excel Eltech inc. =0D
A-76, EOK. New Delhi=0D
110065=0D
ph:9811675688=0D
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
Re: [AVR club] problem with downloading programs to stk501 - raj - Sep 30 8:06:36 2008
Dear Friend,
1.What is diff betwn I2C and TWI.Are they same?
2.Can we replace I2c with SPI device? I think Pin confg differ=
s a lot in these two devices.=A0
Ans is required urgently.Pls answer me ASAP.
Regards,
Kundan
On Mon, 29 Sep 2008 gupta_prag123 wrote :
>hello friends,
>
>i am trying ISP downloading mode, to program atmega1281 controller
>using stk500 and 501.
>
>the problem is that, it shows error message that the ISP freq should
>be less than 1/4 of the target..
>
>I have set freq of 8 MHz in the configuration options of the Project.
>on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
>connected as 1 to 2.
>the target software clock, is set at 3.68 Mhz.
>
>where is the problem?
>
Sr. FAE=0D
Excel Eltech inc. =0D
A-76, EOK. New Delhi=0D
110065=0D
ph:9811675688=0D
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
1.What is diff betwn I2C and TWI.Are they same?
2.Can we replace I2c with SPI device? I think Pin confg differ=
s a lot in these two devices.=A0
Ans is required urgently.Pls answer me ASAP.
Regards,
Kundan
On Mon, 29 Sep 2008 gupta_prag123 wrote :
>hello friends,
>
>i am trying ISP downloading mode, to program atmega1281 controller
>using stk500 and 501.
>
>the problem is that, it shows error message that the ISP freq should
>be less than 1/4 of the target..
>
>I have set freq of 8 MHz in the configuration options of the Project.
>on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
>connected as 1 to 2.
>the target software clock, is set at 3.68 Mhz.
>
>where is the problem?
>
Sr. FAE=0D
Excel Eltech inc. =0D
A-76, EOK. New Delhi=0D
110065=0D
ph:9811675688=0D
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
Re: [AVR club] problem with downloading programs to stk501 - Zack Widup - Sep 30 8:59:11 2008
On Tue, 30 Sep 2008, raj wrote:
> Dear Friend,
>
> 1.What is diff betwn I2C and TWI.Are they same?
>
They are essentially different peoples' names for the same protocol.
> 2.Can we replace I2c with SPI device? I think Pin confg diffe=
rs a lot in these two devices.=A0
>
I don't know about that one. What do you plan on using it for?
Zack
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
> Dear Friend,
>
> 1.What is diff betwn I2C and TWI.Are they same?
>
They are essentially different peoples' names for the same protocol.
> 2.Can we replace I2c with SPI device? I think Pin confg diffe=
rs a lot in these two devices.=A0
>
I don't know about that one. What do you plan on using it for?
Zack
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
Re: Re: [AVR club] problem with downloading programs to stk501 - raj - Oct 1 0:57:01 2008
=A0
Dear Jack,
Please Technically.....!!!!.
Regards,
Kundan
On Tue, 30 Sep 2008 Zack Widup wrote :
>On Tue, 30 Sep 2008, raj wrote:
>
> > Dear Friend,
> >
> > 1.What is diff betwn I2C and TWI.Are they same?
> >They are essentially different peoples' names for the same protocol.
>
> > 2.Can we replace I2c with SPI device? I think Pin confg dif=
fers a lot in these two devices.
> >I don't know about that one. What do you plan on using it for?
>
>Zack
>[Non-text portions of this message have been removed]
>
Sr. FAE=0D
Excel Eltech inc. =0D
A-76, EOK. New Delhi=0D
110065=0D
ph:9811675688=0D
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
Dear Jack,
Please Technically.....!!!!.
Regards,
Kundan
On Tue, 30 Sep 2008 Zack Widup wrote :
>On Tue, 30 Sep 2008, raj wrote:
>
> > Dear Friend,
> >
> > 1.What is diff betwn I2C and TWI.Are they same?
> >They are essentially different peoples' names for the same protocol.
>
> > 2.Can we replace I2c with SPI device? I think Pin confg dif=
fers a lot in these two devices.
> >I don't know about that one. What do you plan on using it for?
>
>Zack
>[Non-text portions of this message have been removed]
>
Sr. FAE=0D
Excel Eltech inc. =0D
A-76, EOK. New Delhi=0D
110065=0D
ph:9811675688=0D
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
[AVR club] Re: problem with downloading programs to stk501 - vid_tech - Oct 1 2:49:09 2008
The TWI and I2C are same but the SPI is different.
The basic difference is, You can connect upto 8 devices on single I2C
bus with different address. The SPI requires seperate bus for each device.
The I2C has fixed 8 Bit transfer, The SPI may be 16 bit.
Kishor Soni=20=20
--- In a...@yahoogroups.com, "raj" wrote:
>
> Dear Friend,
>=20
> 1.What is diff betwn I2C and TWI.Are they same?
>=20
> 2.Can we replace I2c with SPI device? I think Pin confg
differs a lot in these two devices.=A0
>=20
> Ans is required urgently.Pls answer me ASAP.
>=20
> Regards,
> Kundan
>=20
> On Mon, 29 Sep 2008 gupta_prag123 wrote :
> >hello friends,
> >
> >i am trying ISP downloading mode, to program atmega1281 controller
> >using stk500 and 501.
> >
> >the problem is that, it shows error message that the ISP freq should
> >be less than 1/4 of the target..
> >
> >I have set freq of 8 MHz in the configuration options of the Project.
> >on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
> >connected as 1 to 2.
> >the target software clock, is set at 3.68 Mhz.
> >
> >where is the problem?
> >
> >
> >
> >
> >
> >
> >
> >
> >
>=20
>=20
> Sr. FAE
> Excel Eltech inc.=20
> A-76, EOK. New Delhi
> 110065
> ph:9811675688
>=20
>=20
> [Non-text portions of this message have been removed]
>
------------------------------------
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )
The basic difference is, You can connect upto 8 devices on single I2C
bus with different address. The SPI requires seperate bus for each device.
The I2C has fixed 8 Bit transfer, The SPI may be 16 bit.
Kishor Soni=20=20
--- In a...@yahoogroups.com, "raj"
>
> Dear Friend,
>=20
> 1.What is diff betwn I2C and TWI.Are they same?
>=20
> 2.Can we replace I2c with SPI device? I think Pin confg
differs a lot in these two devices.=A0
>=20
> Ans is required urgently.Pls answer me ASAP.
>=20
> Regards,
> Kundan
>=20
> On Mon, 29 Sep 2008 gupta_prag123 wrote :
> >hello friends,
> >
> >i am trying ISP downloading mode, to program atmega1281 controller
> >using stk500 and 501.
> >
> >the problem is that, it shows error message that the ISP freq should
> >be less than 1/4 of the target..
> >
> >I have set freq of 8 MHz in the configuration options of the Project.
> >on STK500, the XTAL1 jumper is connected.and OSCSEL jumper is
> >connected as 1 to 2.
> >the target software clock, is set at 3.68 Mhz.
> >
> >where is the problem?
> >
> >
> >
> >
> >
> >
> >
> >
> >
>=20
>=20
> Sr. FAE
> Excel Eltech inc.=20
> A-76, EOK. New Delhi
> 110065
> ph:9811675688
>=20
>=20
> [Non-text portions of this message have been removed]
>
------------------------------------
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of avrclub -- send a blank email to avrclub-subscribe@yahoogroups.com )