I am comparing two documents
- “Jetson Nano Module Data Sheet”, Version 0.8 released on 2019/10/14 -> https://developer.nvidia.com/embedded/dlc/jetson-nano-system-module-datasheet
Screenshot: https://ibb.co/d4zHjjK
On the page 26, there is a section for diff lines DP1_TXD0 to DP1_TXD2 with note in rightmost column:
DP1_TXD2_[P,N] = HDMI Lane 0
DP1_TXD1_[P,N] = HDMI Lane 1
DP1_TXD0_[P,N] = HDMI Lane 2
- “Jetson Nano Pinmux”, version 1.01, relesed on 2019/12/06 -> https://developer.nvidia.com/jetson-nano-pinmux
Screenshot: https://ibb.co/MNshyJC
On the sheet “Jetson_Nano_Module”, in the HDMI rows (302 - 310), Jetson Nano Signal Name to Ball Name for pins are stated:
DP1_TXD0_P - 65 - HDMI_DP_TXDP0
DP1_TXD0_N - 63 - HDMI_DP_TXDN0
DP1_TXD1_P - 71 - HDMI_DP_TXDP1
DP1_TXD1_N - 69 - HDMI_DP_TXDN1
DP1_TXD2_P - 77 - HDMI_DP_TXDP2
DP1_TXD2_N - 75 - HDMI_DP_TXDN2
DP1_TXD3_P - 83 - HDMI_DP_TXDP3
DP1_TXD3_N - 81 - HDMI_DP_TXDN3
So, in Data Sheet, DP lane 0 corresponds to HDMI lane 2, and vice versa, while in Pinmux, DP lane 0 corresponds to HDMI lane 0
As far as testing goes, I believe that Data Sheet is in the right, so this holds true:
DP1_TXD2_[P,N] = HDMI Lane 0
DP1_TXD1_[P,N] = HDMI Lane 1
DP1_TXD0_[P,N] = HDMI Lane 2
I would like just some feedback, and to have confirmation about this.
With kind regards,
Ante