On Jun 14, 9:20 pm, "John B" <spamj_baraclo...@blockerzetnet.co.uk>
wrote:
> On 14/06/2007 Rav wrote:
> > On Jun 13, 4:32 pm, "John B" <spamj_baraclo...@blockerzetnet.co.uk>
> > wrote:
> > > On 13/06/2007 Rav wrote:
> > > > Hi,
>
> > > > I have a custom made communication gateway PCB with an AT90CAN128
> > > > microcontroller. The PCB card has its own 6 PIN ISP interface
> > > > that i connect to the 6 PIN ISP of the STK500 board. The STK500
> > > > board is connected to the PC through the standard RS232
> > > > programming port. I am using AVR studio 4 to download the program
> > > > onto the controller's flash memory. When i try to access the
> > > > controller's flash for programming...it fails. The error says:
> > > > 'Failed to enter the programming mode'. I have check the pin
> > > > configurations and connections. Those seems to be ok. I wanted to
> > > > ask whether the procedure to program the controller in this way
> > > > is right or not? ...Plz help.
> > > > When I went through the STK500 manual, it says something about
> > > > using STK501 top module for the AT90CAN128. Please explain what
> > > > this STK501 top module is or where can i find the relevent
> > > > solution for it?
>
> > > > thanx and regards...
> > > > Ravi Pathak
>
> > > The STK501 has a clamshell socket to hold a 64-pin chip. You don't
> > > need it to use the STK500 on-board ISP.
>
> > > Firstly, check which pins of the 128 you have connected to the ISP
> > > connector and make sure it is PDI & PDO not MOSI & MISO.
>
> > U r saying that the AT90CAN128 uses PDI/PDO for programming rather
> > than
> > MOSI/MISO..???
>
> RTFM, that's what data sheets are for.
>
> From the way you write, I guess reading may be a problem.
>
> --
> John B- Hide quoted text -
>
> - Show quoted text -
My apologies for the way i presented my query. I didn't intend to ask
that way. I am very sorry about all the mess and assure it won't
happen in he future.
thanks
Reply by John B●June 14, 20072007-06-14
On 14/06/2007 Rav wrote:
> On Jun 13, 4:32 pm, "John B" <spamj_baraclo...@blockerzetnet.co.uk>
> wrote:
> > On 13/06/2007 Rav wrote:
> > > Hi,
> >
> > > I have a custom made communication gateway PCB with an AT90CAN128
> > > microcontroller. The PCB card has its own 6 PIN ISP interface
> > > that i connect to the 6 PIN ISP of the STK500 board. The STK500
> > > board is connected to the PC through the standard RS232
> > > programming port. I am using AVR studio 4 to download the program
> > > onto the controller's flash memory. When i try to access the
> > > controller's flash for programming...it fails. The error says:
> > > 'Failed to enter the programming mode'. I have check the pin
> > > configurations and connections. Those seems to be ok. I wanted to
> > > ask whether the procedure to program the controller in this way
> > > is right or not? ...Plz help.
> > > When I went through the STK500 manual, it says something about
> > > using STK501 top module for the AT90CAN128. Please explain what
> > > this STK501 top module is or where can i find the relevent
> > > solution for it?
> >
> > > thanx and regards...
> > > Ravi Pathak
> >
> > The STK501 has a clamshell socket to hold a 64-pin chip. You don't
> > need it to use the STK500 on-board ISP.
> >
> > Firstly, check which pins of the 128 you have connected to the ISP
> > connector and make sure it is PDI & PDO not MOSI & MISO.
>
> U r saying that the AT90CAN128 uses PDI/PDO for programming rather
> than
> MOSI/MISO..???
RTFM, that's what data sheets are for.
From the way you write, I guess reading may be a problem.
--
John B
>
>> Firstly, check which pins of the 128 you have connected to the ISP
>> connector and make sure it is PDI & PDO not MOSI & MISO.
>
> U r saying that the AT90CAN128 uses PDI/PDO for programming rather
> than MOSI/MISO..???
On Jun 13, 4:32 pm, "John B" <spamj_baraclo...@blockerzetnet.co.uk>
wrote:
> On 13/06/2007 Rav wrote:
> > Hi,
>
> > I have a custom made communication gateway PCB with an AT90CAN128
> > microcontroller. The PCB card has its own 6 PIN ISP interface that i
> > connect to the 6 PIN ISP of the STK500 board. The STK500 board is
> > connected to the PC through the standard RS232 programming port. I am
> > using AVR studio 4 to download the program onto the controller's flash
> > memory. When i try to access the controller's flash for
> > programming...it fails. The error says: 'Failed to enter the
> > programming mode'. I have check the pin configurations and
> > connections. Those seems to be ok. I wanted to ask whether the
> > procedure to program the controller in this way is right or
> > not? ...Plz help.
> > When I went through the STK500 manual, it says something about using
> > STK501 top module for the AT90CAN128. Please explain what this STK501
> > top module is or where can i find the relevent solution for it?
>
> > thanx and regards...
> > Ravi Pathak
>
> The STK501 has a clamshell socket to hold a 64-pin chip. You don't need
> it to use the STK500 on-board ISP.
>
> Firstly, check which pins of the 128 you have connected to the ISP
> connector and make sure it is PDI & PDO not MOSI & MISO.
U r saying that the AT90CAN128 uses PDI/PDO for programming rather
than
MOSI/MISO..???
Reply by Rav●June 14, 20072007-06-14
On Jun 13, 4:32 pm, "John B" <spamj_baraclo...@blockerzetnet.co.uk>
wrote:
> On 13/06/2007 Rav wrote:
> > Hi,
>
> > I have a custom made communication gateway PCB with an AT90CAN128
> > microcontroller. The PCB card has its own 6 PIN ISP interface that i
> > connect to the 6 PIN ISP of the STK500 board. The STK500 board is
> > connected to the PC through the standard RS232 programming port. I am
> > using AVR studio 4 to download the program onto the controller's flash
> > memory. When i try to access the controller's flash for
> > programming...it fails. The error says: 'Failed to enter the
> > programming mode'. I have check the pin configurations and
> > connections. Those seems to be ok. I wanted to ask whether the
> > procedure to program the controller in this way is right or
> > not? ...Plz help.
> > When I went through the STK500 manual, it says something about using
> > STK501 top module for the AT90CAN128. Please explain what this STK501
> > top module is or where can i find the relevent solution for it?
>
> > thanx and regards...
> > Ravi Pathak
>
> The STK501 has a clamshell socket to hold a 64-pin chip. You don't need
> it to use the STK500 on-board ISP.
>
> Firstly, check which pins of the 128 you have connected to the ISP
> connector and make sure it is PDI & PDO not MOSI & MISO.
U r saying that the AT90CAN128 uses PDI/PDO for programming rather
than
MOSI/MISO..???
Reply by John B●June 13, 20072007-06-13
On 13/06/2007 Rav wrote:
> Hi,
>
> I have a custom made communication gateway PCB with an AT90CAN128
> microcontroller. The PCB card has its own 6 PIN ISP interface that i
> connect to the 6 PIN ISP of the STK500 board. The STK500 board is
> connected to the PC through the standard RS232 programming port. I am
> using AVR studio 4 to download the program onto the controller's flash
> memory. When i try to access the controller's flash for
> programming...it fails. The error says: 'Failed to enter the
> programming mode'. I have check the pin configurations and
> connections. Those seems to be ok. I wanted to ask whether the
> procedure to program the controller in this way is right or
> not? ...Plz help.
> When I went through the STK500 manual, it says something about using
> STK501 top module for the AT90CAN128. Please explain what this STK501
> top module is or where can i find the relevent solution for it?
>
> thanx and regards...
> Ravi Pathak
The STK501 has a clamshell socket to hold a 64-pin chip. You don't need
it to use the STK500 on-board ISP.
Firstly, check which pins of the 128 you have connected to the ISP
connector and make sure it is PDI & PDO not MOSI & MISO.
Is there another device also connected to the PDI (PE0) pin? If so you
will need to isolate it from the ISP connector with a resistor. Usually
4k7 is fine. The ISP pin must be connected directly to the PDI pin on
the CAN128.
--
John B
Reply by Rav●June 13, 20072007-06-13
Hi,
I have a custom made communication gateway PCB with an AT90CAN128
microcontroller. The PCB card has its own 6 PIN ISP interface that i
connect to the 6 PIN ISP of the STK500 board. The STK500 board is
connected to the PC through the standard RS232 programming port. I am
using AVR studio 4 to download the program onto the controller's flash
memory. When i try to access the controller's flash for
programming...it fails. The error says: 'Failed to enter the
programming mode'. I have check the pin configurations and
connections. Those seems to be ok. I wanted to ask whether the
procedure to program the controller in this way is right or
not? ...Plz help.
When I went through the STK500 manual, it says something about using
STK501 top module for the AT90CAN128. Please explain what this STK501
top module is or where can i find the relevent solution for it?
thanx and regards...
Ravi Pathak