B2B connector signal mapping issues
eRTM14
- !VERY IMPORTANT! MMC15_TX_TO_USB and MMC15_RX_FROM_USB seem to be swapped. On the usb_uart.SchDoc, the CP2108 RX0 pin (an input pin) is connected to the MMC15_UART_RXD port, which on the node_top.SchDoc is connected via the MMC15_TX_TO_USB net label to the MMC15_USB_RX port of b2b_connector.SchDoc. But then, inside b2b_connector.SchDoc the MMC15_USB_RX port is connected to the MMC15_RX_FROM_USB net label, while it should be connected to the MMC15_TX_TO_USB net label.
- !IMPORTANT! MANAGEMENT_B2B harness TX and RX seem to also have swapped meanings between the two sheets where they are used. In b2b_connector.SchDoc, TX is connected to net label MMC15_TX_FROM_FPGA, while in FPGA_misc_peripherals.SchDoc it is connected to MMC15_RX_TO_FPGA.
- Presence pins seem to be active low but are not named with a _N suffix.
- RFU_LVCMOS harness is not used at all in eRTM15, maybe delete it and unroute it?
- CE_DISTR signal from PLL_CONTROL signal is not used at all in eRTM15, maybe delete it and unroute it?
- differential RFU2 signal is not used at all in eRTM15, maybe delete it and unroute it?
- differential CLK_B2B signal is not used at all in eRTM15, maybe delete it and unroute it?
eRTM15
- No issues, although it's worth double-checking also here that the MANAGEMENT harness and USB UART signals are correctly mapped to whatever firmware is running inside the STM32 uC.