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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Atmel programmer query
Hi,
I know I'm probably missing something really obvious but am not having much luck with Google on this one. I bought this kit some time ago: http://www.matrixmultimedia.com/reso...EB194-30-2.pdf It works fine with a Mega423P, but the 20-pin socket will not work for me. This 20-pin socket is wired as on the link above: +5v pin 5/15 Gnd pin 6/16 MOSI pin1 MISO pin2 SCK pin3 RST pin 10 This does not agree with a typical Atmel 20 pin uC - I would like to use the Tiny2313, which this board allegedly supports, but it can't do as MOSI/MISO/SCK are pins 17/18/19. http://www.atmel.com/Images/doc8246.pdf I tried Googling to find out which uC's DO use this boards' pin configuration but got nowhere and frustrated. I usually learn a lot more posting on usenet than Googling anyway, hence my post here. Cheers, Gareth. |
#2
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Atmel programmer query
On Wed, 24 Oct 2012 15:50:12 +0100, "Gareth Magennis"
wrote: Hi, I know I'm probably missing something really obvious but am not having much luck with Google on this one. I bought this kit some time ago: http://www.matrixmultimedia.com/reso...EB194-30-2.pdf It works fine with a Mega423P, but the 20-pin socket will not work for me. This 20-pin socket is wired as on the link above: +5v pin 5/15 Gnd pin 6/16 MOSI pin1 MISO pin2 SCK pin3 RST pin 10 This does not agree with a typical Atmel 20 pin uC - I would like to use the Tiny2313, which this board allegedly supports, but it can't do as MOSI/MISO/SCK are pins 17/18/19. http://www.atmel.com/Images/doc8246.pdf I tried Googling to find out which uC's DO use this boards' pin configuration but got nowhere and frustrated. I usually learn a lot more posting on usenet than Googling anyway, hence my post here. This doesn't answer which *do* use the pins shown but it looks like if you use the header J3 ("40P") then the ISP signals get routed to the proper pins (19:SCK, 18:MISO, 17:MOSI) on the 20-pin socket. Do a continuity check with nothing plugged in first, of course. -- Rich Webb Norfolk, VA |
#3
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Atmel programmer query
"Rich Webb" wrote in message ... On Wed, 24 Oct 2012 15:50:12 +0100, "Gareth Magennis" wrote: Hi, I know I'm probably missing something really obvious but am not having much luck with Google on this one. I bought this kit some time ago: http://www.matrixmultimedia.com/reso...EB194-30-2.pdf It works fine with a Mega423P, but the 20-pin socket will not work for me. This 20-pin socket is wired as on the link above: +5v pin 5/15 Gnd pin 6/16 MOSI pin1 MISO pin2 SCK pin3 RST pin 10 This does not agree with a typical Atmel 20 pin uC - I would like to use the Tiny2313, which this board allegedly supports, but it can't do as MOSI/MISO/SCK are pins 17/18/19. http://www.atmel.com/Images/doc8246.pdf I tried Googling to find out which uC's DO use this boards' pin configuration but got nowhere and frustrated. I usually learn a lot more posting on usenet than Googling anyway, hence my post here. This doesn't answer which *do* use the pins shown but it looks like if you use the header J3 ("40P") then the ISP signals get routed to the proper pins (19:SCK, 18:MISO, 17:MOSI) on the 20-pin socket. Do a continuity check with nothing plugged in first, of course. -- Rich Webb Norfolk, VA Hmm, this is even curiouser then: J3 Header: MOSI not connected to 20 pin device MISO pin 9 20 pin device SCK not connected to 20 pin device RST pin 10 (all 3 headers' reset lines are commoned) J9 header MOSI pin 4 + Reset. There is screen printing on the board saying J9 is for 28 pin socket, J10 for 8 & 20 pin socket, J3 40 pin socket, as also stated in the manual. If I was Scooby Doo I'd be going "Uuuuurrrumph?" Thanks, Gareth. |
#4
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Atmel programmer query
On Wed, 24 Oct 2012 17:17:18 +0100, "Gareth Magennis"
wrote: "Rich Webb" wrote in message .. . On Wed, 24 Oct 2012 15:50:12 +0100, "Gareth Magennis" wrote: Hi, I know I'm probably missing something really obvious but am not having much luck with Google on this one. I bought this kit some time ago: http://www.matrixmultimedia.com/reso...EB194-30-2.pdf It works fine with a Mega423P, but the 20-pin socket will not work for me. This 20-pin socket is wired as on the link above: +5v pin 5/15 Gnd pin 6/16 MOSI pin1 MISO pin2 SCK pin3 RST pin 10 This does not agree with a typical Atmel 20 pin uC - I would like to use the Tiny2313, which this board allegedly supports, but it can't do as MOSI/MISO/SCK are pins 17/18/19. http://www.atmel.com/Images/doc8246.pdf I tried Googling to find out which uC's DO use this boards' pin configuration but got nowhere and frustrated. I usually learn a lot more posting on usenet than Googling anyway, hence my post here. This doesn't answer which *do* use the pins shown but it looks like if you use the header J3 ("40P") then the ISP signals get routed to the proper pins (19:SCK, 18:MISO, 17:MOSI) on the 20-pin socket. Do a continuity check with nothing plugged in first, of course. -- Rich Webb Norfolk, VA Hmm, this is even curiouser then: J3 Header: MOSI not connected to 20 pin device MISO pin 9 20 pin device SCK not connected to 20 pin device RST pin 10 (all 3 headers' reset lines are commoned) J9 header MOSI pin 4 + Reset. There is screen printing on the board saying J9 is for 28 pin socket, J10 for 8 & 20 pin socket, J3 40 pin socket, as also stated in the manual. If I was Scooby Doo I'd be going "Uuuuurrrumph?" Yes -- I was looking at the pin designations for the device (ATtiny2313) vice the designations on the schematic. thwack thwack However, it does look like there are current ATtiny chips that do have a pinout that matches the one on the programmer. Look at the ATtiny26 and the ATtiny261/461/861 chips and their A-rev brethren. -- Rich Webb Norfolk, VA |
#5
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Atmel programmer query
"Rich Webb" wrote in message ... On Wed, 24 Oct 2012 17:17:18 +0100, "Gareth Magennis" wrote: "Rich Webb" wrote in message . .. On Wed, 24 Oct 2012 15:50:12 +0100, "Gareth Magennis" wrote: Hi, I know I'm probably missing something really obvious but am not having much luck with Google on this one. I bought this kit some time ago: http://www.matrixmultimedia.com/reso...EB194-30-2.pdf It works fine with a Mega423P, but the 20-pin socket will not work for me. This 20-pin socket is wired as on the link above: +5v pin 5/15 Gnd pin 6/16 MOSI pin1 MISO pin2 SCK pin3 RST pin 10 This does not agree with a typical Atmel 20 pin uC - I would like to use the Tiny2313, which this board allegedly supports, but it can't do as MOSI/MISO/SCK are pins 17/18/19. http://www.atmel.com/Images/doc8246.pdf I tried Googling to find out which uC's DO use this boards' pin configuration but got nowhere and frustrated. I usually learn a lot more posting on usenet than Googling anyway, hence my post here. This doesn't answer which *do* use the pins shown but it looks like if you use the header J3 ("40P") then the ISP signals get routed to the proper pins (19:SCK, 18:MISO, 17:MOSI) on the 20-pin socket. Do a continuity check with nothing plugged in first, of course. -- Rich Webb Norfolk, VA Hmm, this is even curiouser then: J3 Header: MOSI not connected to 20 pin device MISO pin 9 20 pin device SCK not connected to 20 pin device RST pin 10 (all 3 headers' reset lines are commoned) J9 header MOSI pin 4 + Reset. There is screen printing on the board saying J9 is for 28 pin socket, J10 for 8 & 20 pin socket, J3 40 pin socket, as also stated in the manual. If I was Scooby Doo I'd be going "Uuuuurrrumph?" Yes -- I was looking at the pin designations for the device (ATtiny2313) vice the designations on the schematic. thwack thwack However, it does look like there are current ATtiny chips that do have a pinout that matches the one on the programmer. Look at the ATtiny26 and the ATtiny261/461/861 chips and their A-rev brethren. -- Rich Webb Norfolk, VA Ah, the *61 family is what I am looking for. Doh! Thwack! Much obliged, Gareth. |
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