ainser8_module
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ainser8_module [2016/08/04 09:32] psykhaze [Introduction] |
ainser8_module [2016/08/04 23:51] (current) psykhaze [Introduction] |
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| ====== AINSER8 Module ====== | ====== AINSER8 Module ====== | ||
| - | {{ :neonking:mbhp_ainser8.jpg?600 |}} | + | {{ :neonking:mbhp_ainser8.jpg?400 |}} |
| ===== Introduction ===== | ===== Introduction ===== | ||
| MBHP_AINSER8 is a Reduced version of the MBHP_AINSER64 module without 1-to-8 multiplexers and on-board VR, and **//only supported by MIOS32!// | MBHP_AINSER8 is a Reduced version of the MBHP_AINSER64 module without 1-to-8 multiplexers and on-board VR, and **//only supported by MIOS32!// | ||
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| It is based on the 8-channel ADC MCP3208** from Microchip. It can be used to scan pots and/or faders with 12bit resolution between 0 and 5V.**The accuracy and especially the signal/noise ratio is much better compared to the internal ADCs of STM32** for insignificantly higher costs (around 3 EUR). | It is based on the 8-channel ADC MCP3208** from Microchip. It can be used to scan pots and/or faders with 12bit resolution between 0 and 5V.**The accuracy and especially the signal/noise ratio is much better compared to the internal ADCs of STM32** for insignificantly higher costs (around 3 EUR). | ||
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| **Powering the module via USB (provided at J19 by the core module) is sufficient**. It's recommended to use a "selfpowered" USB Hub like this one from Reichelt. It also decouples the power from the (noisy) PC supply, and allows to run the MIDIbox without a PC connection. | **Powering the module via USB (provided at J19 by the core module) is sufficient**. It's recommended to use a "selfpowered" USB Hub like this one from Reichelt. It also decouples the power from the (noisy) PC supply, and allows to run the MIDIbox without a PC connection. | ||
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| + | ===== Parts List / Schematic ===== | ||
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| + | See [[ainser8_board_parts_list|AINSER8 Parts List]] | ||
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| + | * {{http://ucapps.de/mbhp/mbhp_ainser8.pdf|Schematic}}<sup>UCapps</sup> | ||
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| ===== Inputs/ Outputs Port Table ===== | ===== Inputs/ Outputs Port Table ===== | ||
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| + | ^ Port ^ Pins # ^ Description ^ | ||
| + | | J2 | 10 | Serial input which is usually connected to J19 of MBHP_CORE_STM32F4 module. | | ||
| + | | J3 | 10 | Serial output which could be used to chain multiple MBHP_AINSER* modules.**Please note: the standard AINSER driver for MIOS32 doesn't support this method!** Instead it expects that multiple modules are connected to J19 in parallel, and that they are using dedicated chip select lines (selected via jumper J4)! | | ||
| + | | J4 | 3 | A jumper has to be connected to this port to select the first or second chip select line of J2 for accessing the ADC. | | ||
| + | | J6 | 10 | 8 analog inputs and 5V (=Vd) / Ground (=Vs) connections.**Please note: all unused analog inputs have to be clamped to ground (Vss)**, otherwise your MIDIbox will send out a lot of random MIDI events | | ||
ainser8_module.1470303154.txt.gz ยท Last modified: 2016/08/04 09:32 by psykhaze
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