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Intel Edison {#edison}

Intel(R) Edison is a dual core Silvermont Atom(TM) clocked at 500MHz. The Edison also features 4GB of storage, 1GB ram and onboard wifi and bluetooth.

Currently Supported boards:

  • Intel Arduino board
  • Intel breakout board

UART

On both the Arduino board and the breakout board, The avaible UART interface is on /dev/ttyMFD1

Intel Arduino board

The Edison used with the Arduino board has the following limitations in libmraa:

  • i2c is exposed on i2c-6, therfore you must use bus 6 and not bus 0
  • PWM avaible on default swizzler postions. (3,5,6,9)
  • SPI exposed is also used for the ADC. Try not to use your own CS.
  • ADC kernel module will return 12bit number but the ADC itself only has an accuracy of 10bits. This ADC is only included on the arduino board.
  • AIO pins are treated as 0-5 in mraa_aio_init() but as 14-19 for everything else. Therefore use mraa_gpio_init(14) to use A0 as a Gpio

Intel(R) breakout board

  • Both I2C buses are avaible 1 & 6
  • IO on the miniboard is 1.8V

Please see the following table on how the physical pins map to mraa pin numbers

MRAA Number Physical Pin Edison Pin Notes Pinmode0 Pinmode1 Pinmode2
0 J17-1 GP182 GPIO-182 PWM2
1 J17-2 NC Nothing from mraa
2 J17-3 NC Nothing from mraa
3 J17-4 VIN Nothing from mraa
4 J17-5 GP135 GPIO-135 UART
5 J17-6 RCVR_MODE Nothing from mraa
6 J17-7 GP27 GPIO-27 I2C-6-SCL
7 J17-8 GP20 GPIO-20 I2C-1-SDA
8 J17-9 GP28 GPIO-28 I2C-6-SDA
9 J17-10 GP111 GPIO-111 SPI-5-CS1
10 J17-11 GP109 GPIO-109 SPI-5-SCK
11 J17-12 GP115 GPIO-115 SPI-5-MOSI
12 J17-13 OSC_CLK_OUT_0 Nothing from mraa/check
13 J17-14 GP128 GPIO-128 UART-1-CTS
14 J18-1 GP13 GPIO-13 PWM1
15 J18-2 GP165 GPIO-165
16 J18-3 GPI_PWRBTN_N Nothing from mraa
17 J18-4 MSIC_SLP_CLK2 Nothing from mraa
18 J18-5 V_VBAT_BKUP Nothing from mraa
19 J18-6 GP19 GPIO-19 I2C-1-SCL
20 J18-7 GP12 PWM0 GPIO-12 PWM0
21 J18-8 GP183 PWM3 GPIO-183 PWM3
22 J18-9 NC Nothing from mraa
23 J18-10 GP110 GPIO-110 SPI-5-CS0
24 J18-11 GP114 GPIO-114 SPI-5-MISO
25 J18-12 GP129 GPIO-129 UART-1-RTS
26 J18-13 GP130 GPIO-130 UART-1-RX
27 J18-14 FW_RCVR Nothing from mraa
28 J19-1 NC Nothing from mraa
29 J19-2 V_V1P80 Nothing from mraa
30 J19-3 GND Nothing from mraa
31 J19-4 GP44 GPIO-44
32 J19-5 GP46 GPIO-46
33 J19-6 GP48 GPIO-48
34 J19-7 RESET_OUT Nothing from mraa
35 J19-8 GP131 GPIO-131 UART-1-TX
36 J19-9 GP14 GPIO-14
37 J19-10 GP40 GPIO-40 SSP2_CLK
38 J19-11 GP43 GPIO-43 SSP2_TXD
39 J19-12 GP77 GPIO-77 SD
40 J19-13 GP82 GPIO-82 SD
41 J19-14 GP83 GPIO-83 SD
42 J20-1 V_VSYS Nothing from mraa
43 J20-2 V_V3P30 Nothing from mraa
44 J20-3 GP134
45 J20-4 GP45 GPIO-45
46 J20-5 GP47 GPIO-47
47 J20-6 GP49 GPIO-49
48 J20-7 GP15 GPIO-15
49 J20-8 GP84 GPIO-84 SD
50 J20-9 GP42 GPIO-42 SSP2_RXD
51 J20-10 GP41 GPIO-41 SSP2_FS
52 J20-11 GP78 GPIO-78 SD
53 J20-12 GP79 GPIO-79 SD
54 J20-13 GP80 GPIO-80 SD
55 J20-14 GP81 GPIO-81 SD