FreeCalypso > hg > freecalypso-docs
comparison DUART28-with-FCDEV3B @ 37:ac33ec9a07d9
DUART28-with-FCDEV3B: the end going to DUART28 can be either blue or grey
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 20 Jan 2021 23:18:34 +0000 |
parents | db344818b323 |
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36:db344818b323 | 37:ac33ec9a07d9 |
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6 ========================== | 6 ========================== |
7 | 7 |
8 The main connection of two UARTs is made with a 10-wire ribbon cable. You | 8 The main connection of two UARTs is made with a 10-wire ribbon cable. You |
9 should have received the correct cable from Falconia Partners LLC together with | 9 should have received the correct cable from Falconia Partners LLC together with |
10 your FCDEV3B+DUART28 board kit - it is a rainbow-colored 10-wire ribbon cable | 10 your FCDEV3B+DUART28 board kit - it is a rainbow-colored 10-wire ribbon cable |
11 with two different end terminations: one end is terminated with a blue IDC | 11 with two different end terminations: one end is terminated with a blue or grey |
12 connector, the other end is terminated with a black connector into which | 12 IDC connector, the other end is terminated with a black connector into which |
13 individual wires are inserted from the top. The blue connector goes to the | 13 individual wires are inserted from the top. The blue or grey connector goes to |
14 DUART28, the black connector goes to the FCDEV3B. | 14 the DUART28, the black connector goes to the FCDEV3B. |
15 | 15 |
16 The blue connector going to the DUART28 board is keyed such that it can be | 16 The blue or grey connector going to the DUART28 board is keyed such that it can |
17 inserted in only one orientation, hence that one is expected to be always | 17 be inserted in only one orientation, hence that one is expected to be always |
18 correct. The black connector goes to the middle of the three headers on | 18 correct. The black connector goes to the middle of the three headers on |
19 FCDEV3B (J301), and in this case you are responsible for ensuring the correct | 19 FCDEV3B (J301), and in this case you are responsible for ensuring the correct |
20 orientation. If you are using the official DUART28 to FCDEV3B cable from | 20 orientation. If you are using the official DUART28 to FCDEV3B cable from |
21 Falconia Partners LLC, then the side with brown and red wires needs to be | 21 Falconia Partners LLC, then the side with brown and red wires needs to be |
22 facing toward JTAG and power input connectors. | 22 facing toward JTAG and power input connectors. |