66 lines
2.6 KiB
Markdown
66 lines
2.6 KiB
Markdown
Linkit Smart 7688 {#linkit_7688}
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=================
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The Linkit Smart 7688 is based on the MediaTek MT7688 system on a chip, which
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includes a MIPS 24KEc 580 MHz processor and 128 megabytes of RAM.
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Features:
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* 20 GPIO pins
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* 4 PWM pins
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* 3 UART ports
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* 1 SPI master port
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* 1 SPI slave port (not supported by libmraa)
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* 1 I2C port
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* 1 I2S port (not supported by libmraa)
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Revision Support
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----------------
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* Linkit Smart 7688
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* Linkit Smart 7688 Duo
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Pin Mapping
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-----------
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| MRAA Number | Physical Pin | Function |
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|-------------|--------------|------------------------|
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| --- | P0 | (Reset) |
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| 1 | P1 | GPIO43 (Eth LED) |
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| --- | P2 | (Eth RD+) |
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| --- | P3 | (Eth RD-) |
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| --- | P4 | (Eth TD+) |
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| --- | P5 | (Eth TD-) |
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| --- | P6 | (USB D+) |
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| --- | P7 | (USB D-) |
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| 8 | P8 | GPIO20, UART TX2, PWM2 |
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| 9 | P9 | GPIO21, UART RX2, PWM3 |
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| --- | GND | GND |
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| --- | 3V3 | 3V3 |
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| --- | VCC | VCC |
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| --- | 5V | 5V |
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| 10 | P10 | GPIO2, (I2S WS) |
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| 11 | P11 | GPIO3, (I2S CLK) |
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| 12 | P12 | GPIO0, (I2S SDI) |
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| 13 | P13 | GPIO1, (I2S SDO) |
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| 14 | P14 | GPIO37 (REF_CLK) |
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| 15 | P15 | GPIO44 (WiFi LED) |
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| 16 | P16 | GPIO46, UART RX1 |
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| 17 | P17 | GPIO45, UART TX1 |
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| 18 | P18 | GPIO13, UART RX0 |
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| 19 | P19 | GPIO12, UART TX0 |
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| 20 | P20 | GPIO5, I2C SDA |
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| 21 | P21 | GPIO4, I2C SCL |
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| 22 | P22 | SPI MOSI |
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| 23 | P23 | SPI MISO |
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| 24 | P24 | SPI SCK |
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| 25 | P25 | GPIO6, SPI CS |
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| 26 | P26 | GPIO18, PWM0 |
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| 27 | P27 | GPIO19, PWM1 |
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| 28 | P28 | GPIO17, (SPIS MOSI) |
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| 29 | P29 | GPIO16, (SPIS MISO) |
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| 30 | P30 | GPIO15, (SPIS SCK) |
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| 31 | P31 | GPIO14, (SPIS CS) |
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