Application of lS1028 + six network port TSN hard switching + QNX/Linux real-time system solution in rail transit system
The following are actual objects used in rail transit:
| CPU | NXP LS1028A | ||
| Architecture | Dual-core Cortex-A72 | Main frequency | 1.5GHz |
| RAM | 2GB DDR4 | ROM | 8GB eMMC |
| OS | Ubuntu 20.04 | powered by | DC 12V |
| Operating temperature | -40℃~ +80℃ | ||
| Function | quantity | parameter |
| Display Port | ≤1 way | Support DP1.3 and eDP 1.4, up to 4Kp60 |
| eSDHC | ≤1 way | Support SD3.0 |
| IIS | ≤6 channels | |
| Ethernet | ≤6 channels | Supports up to 2.5Gbps, 5 network ports (SGMII and QSGMII) support TSN, and has a 4-port TSN Switch. 5 network ports are supported through SerDes configuration. For details, see SerDes configuration instructions |
| PCIe 3.0 | ≤2 channels | The highest rate supports 8GT/s through SerDes configuration support |
| SATA 3.0 | ≤1 way | Maximum rate support 6Gbps via SerDes configuration support |
| USB 3.0 | ≤2 channels | The highest rate supports 5Gbps |
| UART | ≤4 channels | Support 1 channel DUART or 4 channels UART |
| CAN FD | ≤2 channels | |
| IIC | ≤6 channels | |
| SPI | ≤2 channels | |
| SerDes | 1 way | 1 4Lane SerDes, configurable combinations of SGMII, QSGMII, PCIe, and SATA interfaces; several common combinations are: A、SGMII+QSGMII+PCIe2.0 x1+SATA3.0 B、PCIe3.0 x1+QSGMII+PCIe3.0 x2 C、SGMII+QSGMII+PCIe3.0 x2 D、PCIe3.0 x2+PCIe3.0 x2 E、SGMII+QSGMII+PCIe3.0 x1+PCIe3.0 x1 F、PCIe3.0 x4 For more details on SerDes configuration solutions, please see "LS1028ARM.pdf" |