ZHCUAG4B November 2020 – February 2024
5.4 调试连接器 60 引脚 (J7)
该连接器支持将 LVDS 信号连接到 DCA1000 EVM 以进行数据采集，以及连接 SPI、I2C、JTAG、GPADC 和 AM273x EVM 中的其他控制信号以进行调试。
SPI 接口必须多路复用至调试连接器。有关更多详细信息，请参阅节 3.3。
图 5-4 调试连接器原理图
表 5-4 J7 连接器引脚
| 引脚编号 | 说明 | 引脚编号 | 说明 |
|---|---|---|---|
| 1 | NC | 2 | NC |
| 3 | NC | 4 | XREF_CLK0 |
| 5 | GND | 6 | MSS_EPWMA0 |
| 7 | MSS_SPIB_CS0 | 8 | GND |
| 9 | MSS_SPIB_CLK | 10 | MSS_SPIA_HOSTIRQ |
| 11 | MSS_SPIB_PICO | 12 | MSS_SPIB_POCI |
| 13 | 3.3V PULL_UP | 14 | XREF_CLK1 |
| 15 | EMU_TCK | 16 | RCSS_GPIO_49 |
| 17 | EMU_TDI | 18 | GND |
| 19 | GPADC1 | 20 | EMU_TMS |
| 21 | GPADC2 | 22 | EMU_TDS |
| 23 | GPADC3 | 24 | GND |
| 25 | GPADC4 | 26 | LVDS_FRCLK_P |
| 27 | GPADC5 | 28 | LVDS_FRCLK_N |
| 29 | GPADC6 | 30 | GND |
| 31 | GPADC7 | 32 | LVDS_TX3_P |
| 33 | GPADC8 | 34 | LVDS_TX3_N |
| 35 | GPADC9 | 36 | GND |
| 37 | MSS_SPIB_CS1 | 38 | LVDS_TX2_P |
| 39 | SOP1_MSS_SPIB_CS2 | 40 | LVDS_TX2_N |
| 41 | MSS_GPI0_28 | 42 | GND |
| 43 | MSS_GPI0_2 | 44 | LVDS_CLK_P |
| 45 | TPR_WRMRST | 46 | LVDS_CLK_N |
| 47 | TPR_NERRIN | 48 | GND |
| 49 | TPR_NERROUT | 50 | LVDS_TX1_P |
| 51 | MSS_I2CA_SCL | 52 | LVDS_TX1_N |
| 53 | MSS_I2CA_SDA | 54 | |
| 55 | NC | 56 | LVDS_TX0_P |
| 57 | NC | 58 | LVDS_TX0_N |
| 59 | NC | 60 | GND |