From 1587a8bcdfe1f6bf077643a8cb41d3bdb65e9715 Mon Sep 17 00:00:00 2001
From: liquidraver <504870+liquidraver@users.noreply.github.com>
Date: Fri, 20 Feb 2026 15:13:04 +0100
Subject: [PATCH] max contacts update

---
 zephcore/boards/common/prod.conf                |  5 +++--
 zephcore/boards/esp32/xiao_esp32c3/board.conf   |  3 +++
 zephcore/boards/example_board/board.conf        | 10 ++++++++++
 zephcore/boards/mg24/xiao_mg24/board.conf       |  3 +++
 zephcore/boards/nrf54l/xiao_nrf54l15/board.conf |  3 +++
 5 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/zephcore/boards/common/prod.conf b/zephcore/boards/common/prod.conf
index 3a5b101..85f8d66 100644
--- a/zephcore/boards/common/prod.conf
+++ b/zephcore/boards/common/prod.conf
@@ -13,5 +13,6 @@ CONFIG_LOG_BACKEND_RTT=n
 # Disable asserts (saves flash, removes CMake warning)
 CONFIG_ASSERT=n
 
-# Max contacts for production
-CONFIG_ZEPHCORE_MAX_CONTACTS=500
+# Max contacts for production (Check board configs for overrides, too low RAM can freeze the device with this setting!)
+# nRF/ESP like RAK and Wio Tracker / S3,C6 should handle it.
+CONFIG_ZEPHCORE_MAX_CONTACTS=750
diff --git a/zephcore/boards/esp32/xiao_esp32c3/board.conf b/zephcore/boards/esp32/xiao_esp32c3/board.conf
index a1ce088..392910b 100644
--- a/zephcore/boards/esp32/xiao_esp32c3/board.conf
+++ b/zephcore/boards/esp32/xiao_esp32c3/board.conf
@@ -20,3 +20,6 @@ CONFIG_ZEPHCORE_RADIO_NATIVE=y
 
 # Flash size (XIAO ESP32-C3 has 4MB, override Zephyr default 2MB)
 CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+
+# RAM-limited: override prod.conf MAX_CONTACTS (800 overflows DRAM)
+CONFIG_ZEPHCORE_MAX_CONTACTS=300
diff --git a/zephcore/boards/example_board/board.conf b/zephcore/boards/example_board/board.conf
index bd6a895..0e6c6db 100644
--- a/zephcore/boards/example_board/board.conf
+++ b/zephcore/boards/example_board/board.conf
@@ -92,6 +92,16 @@ CONFIG_NORDIC_QSPI_NOR=n
 # --- ESP32 ---
 # CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y   # If your board has 4MB flash (default 2MB)
 
+# ========== OPTIONAL: Max Contacts Override ==========
+# prod.conf sets MAX_CONTACTS=800 (sized for nRF52840's 256KB SRAM).
+# RAM-constrained boards MUST override here. Approximate safe limits:
+#   nRF52840:  800 (default, no override needed)
+#   ESP32-C6:  800 (default, no override needed)
+#   MG24:      650 (Silabs BLE blob needs 32KB heap)
+#   nRF54L15:  450 (FLPR core reserves 68KB SRAM)
+#   ESP32-C3:  300 (limited DRAM)
+# CONFIG_ZEPHCORE_MAX_CONTACTS=450
+
 # ========== OPTIONAL: Disable RX Duty Cycle ==========
 # Inherited from platform common config as enabled (power savings).
 # Override here if your board is wall-powered.
diff --git a/zephcore/boards/mg24/xiao_mg24/board.conf b/zephcore/boards/mg24/xiao_mg24/board.conf
index 9c1ac0d..0222f61 100644
--- a/zephcore/boards/mg24/xiao_mg24/board.conf
+++ b/zephcore/boards/mg24/xiao_mg24/board.conf
@@ -10,3 +10,6 @@ CONFIG_BT_DIS_MODEL_NUMBER_STR="XIAO MG24"
 
 # Radio type
 CONFIG_ZEPHCORE_RADIO_NATIVE=y
+
+# RAM-limited: Silabs BLE blob needs 32KB heap, override prod.conf MAX_CONTACTS
+CONFIG_ZEPHCORE_MAX_CONTACTS=650
diff --git a/zephcore/boards/nrf54l/xiao_nrf54l15/board.conf b/zephcore/boards/nrf54l/xiao_nrf54l15/board.conf
index 9687e48..1bbb645 100644
--- a/zephcore/boards/nrf54l/xiao_nrf54l15/board.conf
+++ b/zephcore/boards/nrf54l/xiao_nrf54l15/board.conf
@@ -9,3 +9,6 @@ CONFIG_BT_DIS_MODEL_NUMBER_STR="XIAO nRF54L15"
 
 # Radio type
 CONFIG_ZEPHCORE_RADIO_NATIVE=y
+
+# RAM-limited: FLPR core reserves 68KB, override prod.conf MAX_CONTACTS
+CONFIG_ZEPHCORE_MAX_CONTACTS=450