This manual provides comprehensive instructions on how to use the SP7350 IO Board. The SP7350 IO Board, when combined with the SP7350 Core Board, serves as a demonstration platform for showcasing the hardware and software capabilities of the SP7350. Additionally, it offers customers a robust environment to develop their own software and applications.
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The table below describes:
Item | DescriptionDescriptions |
1 | 12V DC power input. The DC Jack plug diameter is 5.5mm, and the adapter power supply current must be greater than 1A. |
2 | Ethernet RJ-45 socket, supports 10M/100M/1000M transmission. |
3 | Ethernet Giga PHY, Realtek RTL8211FD chip. |
4 | HDMI output interface, supports 1080P1080p, 720P720p, 480P480p. |
5 | MIPI/DSI to HDMI bridge chip, LT8912B |
6 | 4-pole, 3.5mm, TRRS headphone headset jack, Apple type (L, R, G, M). |
7 | Analog microphone input. |
8 | Audio Speaker output, can only output either to headphones headset or speakers. |
9 | Audio codec chip, ES8316 |
10 | Wake-up button. Functions as follows:
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11 | Reset button, resets CM4 and MAINMain-DOMAIN Powerpower domain, but cannot does not reset RTC. |
12 | USB3.1 0 Type C socket, supports Low/Full/High/Super speeds. Please note, 4-port USB3.1 0 Type A and Type C are multiplexed, and both interfaces they cannot be used simultaneously. |
13 | Serial port Type C socket, supports UA0/, UA6 /or UADBG 3 serial ports through jumper switch from Type C outputjumpers. Refer to section 9. |
14 | CH340 USB to serial bridge chip, CH340N. |
15 | Dual USB3.1 0 Type A socket, supports Low/Full/High/Super speeds. |
16 | Dual USB3.1 0 Type A socket, supports Low/Full/High/Super speeds. |
17 | 4-port USB3.1 Gen. 1 0 Hub chip, VL817-Q7S |
18 | SPI-NOR flash chip, MX25L512, used with USB3 hub chip. |
19 | Dual USB2.0 Type A socket, supports Low/Full/High speeds. |
20 | Dual USB2.0 Type A socket, supports Low/Full/High speeds. |
21 | 4-port USB2.0 Hub chip, SPD104 |
22 | EEPROM chip, used with USB2 Hub chip. |
23 | M.2 E-key interface socket for interfacing SDIO wireless network card. Refer to Appendix I for pin definitions. |
24 | MIPI-RX2 interface, Raspberri Pi camera compatible, 22-pin, 0.5mm, top-contact FFC connector (not supported in . Note that version A chip )of SP7350 does not support this channel. |
25 | MIPI-RX3 interface, Raspberry Pi camera compatible, 15-pin, 1.0mm camera , FFC connector compatible. Refer to section 7.2 for pin definitions. |
26 | MIPI-RX5 interface, Raspberri Pi camera compatible, 22-pin, 0.5mm, top-contact FFC connector. Refer to section 7.4 for pin definitions. |
27 | MIPI-RX4 interface, Raspberry Pi camera compatible, 15-pin, 1.0mm camera , FFC connector compatible. Refer to section 7.3 for pin definitions. |
28 | MIPI-TX (1c2d) interface, Raspberry Pi display compatible, 15-pin, 1.0mm display , FFC connector compatible. Refer to section 7.6 for pin definitions. |
29 | MIPI-TX (1c4d) interface, Forlinx Embedded compatible, 30-pin, 0.5mm, top-contact, FFC connector. Refer to section 7.5 for pin definitions. Note: Both MIPI-TX connectors share signals with the HDMI interface; all . All 3 interfaces cannot be used simultaneously. |
30 | Three key buttons. Refer to section 8 for details. |
31 | SP7350 boot configuration switch. Refer to section 2 for details. |
32 | Micro SD card socket. |
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Jumper | Output |
 | HDMI |
 | MIPI DSI (30-pin or 15-pin FFC) |
7. MIPI
7.1. MIPI-RX2
Note version A of SP7350 does not support this channel.
MIPI-RX2 is connected to a Raspberry Pi camera compatible, 22-pin, 0.5mm FFC connector. For pin definitions of the FFC connector, please refer to Figure 16.
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MIPI-TX (4d1c)5 is connected to a Forlinx Embedded LT8912B MIPI-to-HDMI Bridge Board Compatible, 30-pin, 0.5mm FFC connector. For pin definitions of the FFC connector, please refer to Figure 24.
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Jumpers are required across GPIO78, GPIO79, GPIO88, GPIO89, GPIO91, and GPIO90 on CN16, as depicted in Figure 25:
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Note that the MIPI-TX (4d1c), MIPI-TX (2d1c), and HDMI outputs all share the same input source. Therefore, these three interfaces cannot be used simultaneously.
7.6. MIPI-TX (2d1c)
MIPI-TX (2d2c) is connected to a Raspberry Pi display compatible, 15-pin, 1.0mm FFC connector. For pin definitions of the FFC connector, please refer to Figure 26.
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Jumpers are required across GPIO91, and GPIO90 on CN16, as depicted in Figure 27:
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Note that the MIPI-TX (4d1c), MIPI-TX (2d1c), and HDMI outputs all share the same input source. Therefore, these three interfaces cannot be used simultaneously.
8. Keys
The SP7350 IO Board has 3 key buttons that can trigger different software functions when pressed.
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Connect UA6 to Type-C. | Connect UA0 to Type-C. | Connect UADBG to Type-C. |
Note:
Only one UART can be connected to the UART-to-USB bridge at a time.
Before using the CH340N, you need to download and install its driver.
Appendix I Pin Definitions of Wireless Network
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Card
The pin definitions of the wireless (M.2 E-key) module card are as follows:
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Appendix II Pin Definitions of LVDS Output of LT8912B
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