i.MX 8M Mini Starter Kit RPi-compatible Expansion Header Print

 

The Emcraft i.MX 8M Starter Kit provides an RPi-compatible expansion header using a 40 Positions 0.100" (2.54mm) Through Hole Header.

The RPi-compatible expansion header using the following board connector:

  • IMX8M-SOM-BSB development board: Sullins PRPC020DAAN-RC(DigiKey PN# S2011EC-20-ND)

The board connectors have the following signal pin-out:

RPi Pin Name Alt0 Alt1 Alt2 Alt5
1 3V3
3 I2C3_SDA i2c3.SDA pwm3.OUT gpt3.CLK gpio5.IO[19]
5 I2C3_SCL i2c3.SCL pwm4.OUT gpt2.CLK gpio5.IO[18]
7 PWM1 spdif1.EXT_CLK pwm1.OUT
gpio5.IO[5]
9 GND
11 GPIO3_IO08 rawnand.DATA02 qspi.A_DATA[2]
gpio3.IO[8]
13 GPIO3_IO09 rawnand.DATA03 qspi.A_DATA[3] gpio3.IO[9]
15 GPIO3_IO04 rawnand.CE3_B qspi.B_SS1_B gpio3.IO[4]
17 3V3
19 ECSPI1_MOSI ecspi1.MOSI uart3.TX gpio5.IO[7]
21 ECSPI1_MISO ecspi1.MISO uart3.CTS_B gpio5.IO[8]
23 ECSPI1_SCLK ecspi1.SCLK uart3.RX gpio5.IO[6]
25 GND
27 NC
29 I2C4_SDA i2c4.SDA pwm1.OUT pcie2.CLKREQ_B gpio5.IO[21]
31 NC
33 PWM3 spdif1.OUT pwm3.OUT
gpio5.IO[3]
35 PCM_FS sai1.RX_DATA[6] sai6.TX_SYNC sai6.RX_SYNC gpio4.IO[8]
37 NC
39 GND
2 5V
4 5V
6 GND
8 UART3_TXD uart3.TX uart1.RTS_B gpio5.IO[27]
10 UART3_RXD uart3.RX uart1.CTS_B gpio5.IO[26]
12 PCM_BCLK sai1.RX_DATA[4] sai6.TX_BCLK sai6.RX_BCLK gpio4.IO[6]
14 GND
16 I2C4_SCL i2c4.SCL pwm2.OUT pcie1.CLKREQ_B gpio5.IO[20]
18 GPIO3_IO20 sai5.RX_BCLK sai1.TX_DATA[1] gpio3.IO[20]
20 GND
22 GPIO3_IO25 sai5.MCLK sai1.TX_BCLK sai4.MCLK gpio3.IO[25]
24 ECSPI1_SS0 ecspi1.SS0 uart3.RTS_B gpio5.IO[9]
26 ECSPI1_SS1 rawnand.CE1_B qspi.A_SS1_B gpio3.IO[2]
28 NC
30 GND
32 PWM2 spdif1.IN pwm2.OUT gpio5.IO[4]
34 GND
36 NC
38 PCM_DIN sai1.RX_DATA[5] sai6.TX_DATA[0] sai6.RX_DATA[0] gpio4.IO[7]
40 PCM_DOUT sai1.TX_DATA[5] sai6.RX_DATA[0] sai6.TX_DATA[0] gpio4.IO[17]