MattairTech MT-X1, Manual

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MT­X1 Manual
MT­X1 Hardware
MT­X1 Hardware
Solder Jumpers
Jumper Description
J1 USB Shield to gnd (not connected by default)
J2 ~5V to relay driver (5V header pin and kickback diodes common cathode)
J3 DACA0 (pin A2) to amplifier audio input
J4 AREF B (pin B0) to 1.25V reference
J5
AREF A (pin A0) to 1.25V reference
J6 ADCA1 (pin A1) to temperature sensor output
J7
External clock input (pin R1) to CLKO from AT90USB162 (8 MHz)
J8 SPI D SS (pin D4) to SRAM chip select (external pullup)
J9 SPI D MOSI (pin D5) to SRAM SI (external pullup)
J10 SPI D SCK (pin D7) to SRAM clock input (external pullup)
J11 SPI D MISO (pin D6) to SRAM SO (external pulldown)
J12
Pin D0 to LED_1
J13 Pin D1 to LED_2
J14
Pin D2 to LED_3
J15 Pin D3 to LED_4
J16 SPI F SCK (pin F7) to relay driver clock input
J17
SPI F MOSI (pin F5) to relay driver SI input
J18 USART F0 RXD (pin F2) to AT90USB162 USART TX
J19
USART F0 TXD (pin F3) to AT90USB162 USART RX (shared with PDI_DATA)
J20 USART F0 XCK (pin F1) to AT90USB162 USART XCK (also USB ready signal)
J21
SPI E MISO (pin E6) to SD card SO (must enable XMEGA pullup)
J22 SPI E SCK (pin E7) to SD card clock input (external pullup)
J23 SPI E MOSI (pin E5) to SD card SI (external pullup)
J24 SPI E SS (pin E4) to SD card chip select (external pullup)
June 2, 2015 6 http://www.mattairtech.com/