Differences
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boards:ecb:backplane-3:start [2017/03/18 13:16] will |
boards:ecb:backplane-3:start [2018/10/30 11:53] will [Introduction] |
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| The ECB Mini Backplane is a backplane card for the EuroCard Bus which allows up to 3 ECB cards to be connected at one time. | The ECB Mini Backplane is a backplane card for the EuroCard Bus which allows up to 3 ECB cards to be connected at one time. | ||
| - | The backplane features a power input, power switch, LED to indicate when power is on, and a 2-pin input header to connect a reset switch. On the reverse | + | The backplane features a power input, power switch, LED to indicate when power is on, and a 2-pin input header to connect a reset switch. On the back side of the PCB the ECB pin rows and columns are labeled |
| - | The reset input header is connected to pin C31 for KONTRON | + | The reset input header is connected to pin C31 for Kontron |
| - | The board is designed to be used either flat on a table with the cards standing up, or on its side with the backplane connectors and power switch above the ECB cards and both backplane and cards resting on the table. | + | The board is designed to be used either flat on a table with the cards standing up, or on its side with the backplane connectors and power switch above the ECB cards and both backplane and cards resting |
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| + | The 2018 PCBs are manufactured using 1.6mm thick FR4 with lead solder HASL finish (the 2017 boards used 2.0mm thick FR4 with ENIG finish, however 1.6mm and HASL is nicer to solder, easily strong enough, and much cheaper) | ||
| - | The PCBs are manufactured using 2.0mm thick FR4 with ENIG finish. | ||
| ===== Schematic ===== | ===== Schematic ===== | ||
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| If you will be using the Interrupt or DMA chains you will need to fit four wire jumpers connecting /BAO to /BAI and /IEO to /IEI as indicated on the PCB. The only Retrobrew Computers board to use these signals is the "Zilog Peripherals" | If you will be using the Interrupt or DMA chains you will need to fit four wire jumpers connecting /BAO to /BAI and /IEO to /IEI as indicated on the PCB. The only Retrobrew Computers board to use these signals is the "Zilog Peripherals" | ||
| - | If you intend to use the board lying flat with the cards standing up, fit four 3M BumpOn rubber domes on the rear to prevent scratching your work surfaces. If you intend to use the board vertically with the ECB cards lying against the desk be aware that many cards will be " | + | If you intend to use the board lying flat with the cards standing up, fit four 3M BumpOn rubber domes on the rear to prevent scratching your work surfaces. If you intend to use the board vertically with the ECB cards lying against the desk be aware that many cards will be " |
| ===== Photographs ===== | ===== Photographs ===== | ||
