display_driver
Differences
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display_driver [2018/03/07 22:57] – [BOM v1.0] latigid_on | display_driver [2018/03/31 13:46] (current) – [Interconnection to Core] latigid_on | ||
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The second purpose is to use a chain of shift registers to provide chip select (CS) signals. It is functionally equivalent to a DOUT module, but the header is directly compatible with GPIO on the Core. | The second purpose is to use a chain of shift registers to provide chip select (CS) signals. It is functionally equivalent to a DOUT module, but the header is directly compatible with GPIO on the Core. | ||
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+ | The pinout for the display connectors is as follows: | ||
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+ | {{: | ||
+ | (Power is connected to pin 10.) | ||
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- | Here the header notches are aligned with the silkscreen. Only the first six are required. | + | Here the header notches are aligned with the silkscreen. Only the first six wires are required. |
===== Assembly ===== | ===== Assembly ===== | ||
- | The 1206 caps and SMT parts should be soldered first. Note the orientation of ICs! In general they will have pin 1/16 nearest the decoupling cap. Pin 1 for RNs is marked | + | All parts are THT, start with resistors and caps, IC sockets then headers. |
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- | Note the instructions for DOUT1/2. You either need ICs 11/12 and resistors vertically mounted or spanning the outermost pads in place of IC11/12. | + | |
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J15A1/J10B1 chain another Display Driver. Note that the J15 connection should not be mirrored for subsequent boards. | J15A1/J10B1 chain another Display Driver. Note that the J15 connection should not be mirrored for subsequent boards. | ||
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+ | J9 is a power supply input that is sent to the displays over headers J1-J8. It may be better to wire the displays directly to the power supply rather than using the ribbon cable and connectors. | ||
==== Dimensions ==== | ==== Dimensions ==== | ||
- | The PCB is 100*100mm with 3.6mm diameter holes centred 3.5mm from the edges. | + | The PCB is 100*100mm with 3.2mm diameter holes centred 3.5mm from the edges. |
display_driver.1520463436.txt.gz · Last modified: 2018/03/07 22:57 by latigid_on