From df85a59b695dab92846c901360600e76fae79586 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Thu, 26 Feb 2026 16:25:08 +0100 Subject: [PATCH 1/3] Charge SOM: Drop PP from drawings The label for X18 could be misleading for our customers. There is no intention to connect PP here. So drop it. Signed-off-by: Stefan Wahren --- .../images/charge_som_hw_wiring_diagram.svg | 1196 ++++++++++++++--- .../images/dc_charger_charge_som_setup.svg | 1069 ++++++++++++--- 2 files changed, 1927 insertions(+), 338 deletions(-) diff --git a/docs/source/_static/images/charge_som_hw_wiring_diagram.svg b/docs/source/_static/images/charge_som_hw_wiring_diagram.svg index eb038fe..7390f37 100644 --- a/docs/source/_static/images/charge_som_hw_wiring_diagram.svg +++ b/docs/source/_static/images/charge_som_hw_wiring_diagram.svg @@ -1,178 +1,1020 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/source/_static/images/dc_charger_charge_som_setup.svg b/docs/source/_static/images/dc_charger_charge_som_setup.svg index c3a51dd..d579260 100644 --- a/docs/source/_static/images/dc_charger_charge_som_setup.svg +++ b/docs/source/_static/images/dc_charger_charge_som_setup.svg @@ -1,162 +1,909 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + From 7a931278eb4e6640fc64797fb5a018e2214f79db Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Thu, 26 Feb 2026 16:37:10 +0100 Subject: [PATCH 2/3] Charge SOM: Clarify current PP behavior Signed-off-by: Stefan Wahren --- docs/source/hardware.rst | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/docs/source/hardware.rst b/docs/source/hardware.rst index fdbe06a..beeb8e7 100644 --- a/docs/source/hardware.rst +++ b/docs/source/hardware.rst @@ -39,10 +39,13 @@ Control Pilot / Proximity Pilot (X18) ************************************* For ISO 15118 / DIN 70121 compliant communication between EVSE and PEV, Charge SOM supports -CP (control pilot) and PP (proximity pilot) signaling including Green PHY communication. +CP (control pilot) signaling including Green PHY communication. This Green PHY communication is available on network interface ``eth1``. The MAC address of this host interface is stored within the EEPROM on the Charge SOM. +The PP (proximity pilot) monitoring from EVSE side is currently not implemented for DC setups yet. +So please leave this pin unconnected. + ********************************** High-Voltage Connector (HVDC, X19) ********************************** From 9b007ab9f276915c2ea966ac77c3451f03719241 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Thu, 26 Feb 2026 16:44:23 +0100 Subject: [PATCH 3/3] Charge SOM: Add note about SAE J1772 Signed-off-by: Stefan Wahren --- docs/source/introduction.rst | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/docs/source/introduction.rst b/docs/source/introduction.rst index abacac3..2d64e1a 100644 --- a/docs/source/introduction.rst +++ b/docs/source/introduction.rst @@ -24,7 +24,7 @@ The Charge SOM is provided with a Linux-Yocto operating system. The installed so Product Features ---------------- -* Works with CCS1 / CCS2 and NACS according to IEC 61851, SAE J1772, and ISO 15118, ensuring smooth communication with all types of EVs. +* Works with CCS1 / CCS2 and NACS according to IEC 61851, SAE J1772 [#]_, and ISO 15118, ensuring smooth communication with all types of EVs. * A dedicated co-processor monitors and controls safety-critical components like CP and PP signals, DC circuit breakers, E-Stops and other vital components in real-time according to functional safety standard IEC 61508 * PT1000 plug temperature monitoring * Plug-and-Play with the popular `EVerest charging stack `_ @@ -35,6 +35,8 @@ Product Features * TPM 2.0 standard compliant module for secure hardware-based key storage * RTC support via I2C for precise timekeeping (IC/battery on carrier board) +.. [#] This feature isn't fully implemented yet. + Host Controller * NXP i.MX93 1.7 GHz