din_module
Differences
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din_module [2007/11/18 15:25] audiocommander added connection to core module pic, reformatted |
din_module [2016/07/11 16:23] (current) psykhaze |
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| - | ====== General Informations ====== | + | ====== DIN Module ====== |
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| + | ===== General Informations ===== | ||
| A DIN module is used to connect buttons and encoders to the Midibox. The Name comes from "Digital Input" and means that the module can detect two states: ON or OFF. | A DIN module is used to connect buttons and encoders to the Midibox. The Name comes from "Digital Input" and means that the module can detect two states: ON or OFF. | ||
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| - | ====== Connection to Core Module ====== | + | ===== Connection to Core Module ===== |
| Check the version of your Boards; | Check the version of your Boards; | ||
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| - | ====== Troubleshooting ====== | + | ===== Troubleshooting ===== |
| - | ===== Testing all pins ===== | + | ==== Testing all pins ==== |
| - | Regardless which MIDIbox you are planning to build, you can use the MIDIO128 application in order to test the digital inputs of the DIN module(s) | + | Regardless which MIDIbox you are planning to build, you can use the MIDIO128 application to test the digital inputs of the DIN module(s) |
| Once MIOS and the MIDIO128 application have been uploaded, each digital input will send a Note On event (pin 1-64) or Controller Event (pin 65-128) when a button is pressed (=0V at the digital input pin), and a Note Off event (pin 1-64) or Controller Event (pin 65-128) when the button is released (=5V at the digital input pin). | Once MIOS and the MIDIO128 application have been uploaded, each digital input will send a Note On event (pin 1-64) or Controller Event (pin 65-128) when a button is pressed (=0V at the digital input pin), and a Note Off event (pin 1-64) or Controller Event (pin 65-128) when the button is released (=5V at the digital input pin). | ||
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| - | ===== Testing Shift Register Connections ===== | + | ==== Testing Shift Register Connections ==== |
| If the first input pin of the first shift register (74HC165) triggers all 128 Notes at once, there is propably a problem with the Shift or Register Clock line (SC/RC signal). Both signals are driven by the core module, and they are connected to all shift registers in order to scan the chain. If these signals are not connected, or if there is a short, the core will always "see" the first digital pin, and never the remaining pins of the chain. | If the first input pin of the first shift register (74HC165) triggers all 128 Notes at once, there is propably a problem with the Shift or Register Clock line (SC/RC signal). Both signals are driven by the core module, and they are connected to all shift registers in order to scan the chain. If these signals are not connected, or if there is a short, the core will always "see" the first digital pin, and never the remaining pins of the chain. | ||
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| Warning: Don't do this too early, this should be the last measure which normaly leads to success, but also to a bad looking PCB. After this procedure, you have to repair the track with some solder | Warning: Don't do this too early, this should be the last measure which normaly leads to success, but also to a bad looking PCB. After this procedure, you have to repair the track with some solder | ||
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din_module.1195399536.txt.gz · Last modified: 2007/11/24 03:51 (external edit)
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