kicad：EasyEDA→KiCad 工程（Board1/Board2）、库、脚本与评审文档（IC 引脚、风扇、热、EDL 供电、布局规则）

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-04 19:24:42 +08:00
@@ -0,0 +1,35 @@
+Draft only; not sent.
+
+Subject: Electrical interface and startup data for SANYO DENKI 9G0612P4S001
+
+We are evaluating two 9G0612P4S001 fans in a 12V system (10.8 to 13.2V
+system supply). Please provide specifications explicitly applicable to
+this complete part number, including temperature and voltage conditions:
+
+1. PWM input: recommended frequency range, VIH/VIL, absolute maximum
+   voltage, open-circuit voltage, maximum source current, input leakage
+   and behavior when the fan is unpowered. Can two inputs share one
+   open-drain driver? Is 0% duty guaranteed to keep running?
+2. Pulse sensor: output topology, pulses per revolution, maximum pull-up
+   voltage, sink current, guaranteed VOL, off-state leakage, rise/fall
+   times, and output behavior during power-up, power-down and rotor lock.
+3. Supply: maximum operating current (not nominal rated current), startup
+   peak current and duration, input capacitance/inrush, locked-rotor
+   current and automatic restart pulse/retry timing, and minimum off-time
+   before restart. Please include worst cases over the operating range.
+4. Are the published general PWM/pulse-sensor example limits guaranteed
+   for 9G0612P4S001? If so, please identify the governing document/revision.
+5. Please supply recommended branch protection, permissible supply ramp,
+   signal connection order, and any restrictions on live connection.
+
+Current interface for review:
+- Fan power switched by a common high-side MOSFET; fan grounds stay fixed.
+- PWM: shared open-drain NMOS, nominal 25kHz.
+- Each yellow sensor wire: 10k pull-up to switched fan power; 15k series
+  to an NMOS gate, 10k gate-to-ground. The NMOS drain has a separate
+  10k pull-up to 3.3V and drives its own MCU input.
+- Red=power, black=ground, yellow=pulse sensor, brown=PWM.
+
+Please identify any interface restrictions that make this circuit
+incompatible. We have not treated the family example limits or the
+0.67A rated current as guaranteed model-specific worst-case values.
@@ -0,0 +1,79 @@
+--- a/firmware/main/board_pins.h
+++ b/firmware/main/board_pins.h
+@@ -22,8 +22,11 @@
+ 
+ #define BOARD_PIN_I2C_SDA     14 /* 模组脚 22 —— 6×INA226 + 2×DAC + PCA9555（+ 载板 LM75） */
+ #define BOARD_PIN_I2C_SCL     15 /* 模组脚 8 */
+-#define BOARD_PIN_FAN_TACH    16 /* 模组脚 9  → R731/R732 分压 */
+-#define BOARD_PIN_FAN_PWM     18 /* 模组脚 11 → R733 */
+/* KiCad FAN-R2: common power enable, inverted open-drain PWM, two receivers. */
+#define BOARD_PIN_FAN_EN       5 /* Module pin 5 -> R742/Q8; active high */
+#define BOARD_PIN_FAN_TACH_IN 16 /* Module pin 9 -> Q9; intake */
+#define BOARD_PIN_FAN_TACH_OUT 4 /* Module pin 4 -> Q10; exhaust */
+#define BOARD_PIN_FAN_PWM     18 /* Module pin 11 -> R733/Q6; GPIO duty = 1 - fan duty */
+ #define BOARD_PIN_UP_VBUS_DET 47 /* 模组脚 24 → J24.25，上游 VBUS 有没有插 */
+ #define BOARD_PIN_NTC1        1  /* 模组脚 39，ADC1_CH0 —— 必须是 IO1~IO10 */
+ #define BOARD_PIN_NTC2        2  /* 模组脚 38，ADC1_CH1 */
+--- a/firmware/main/rail_cfg.c
+++ b/firmware/main/rail_cfg.c
+@@ -107,7 +107,7 @@
+ static bool pins_ok(const rail_cfg_t *t)
+ {
+     /* 全板用掉的每一个脚。顺序无所谓，这里只查「都能用」和「不重复」。 */
+-    int used[2 * PHONERAIL_RAIL_COUNT + 14];
+    int used[2 * PHONERAIL_RAIL_COUNT + 16];
+     size_t n = 0;
+ 
+     for (int rail = 1; rail <= PHONERAIL_RAIL_COUNT; rail++) {
+@@ -116,7 +116,9 @@
+     }
+     used[n++] = BOARD_PIN_I2C_SDA;
+     used[n++] = BOARD_PIN_I2C_SCL;
+-    used[n++] = BOARD_PIN_FAN_TACH;
+    used[n++] = BOARD_PIN_FAN_EN;
+    used[n++] = BOARD_PIN_FAN_TACH_IN;
+    used[n++] = BOARD_PIN_FAN_TACH_OUT;
+     used[n++] = BOARD_PIN_FAN_PWM;
+     used[n++] = BOARD_PIN_UP_VBUS_DET;
+     used[n++] = BOARD_PIN_NTC1;
+--- a/firmware/test/test_rail_cfg.c
+++ b/firmware/test/test_rail_cfg.c
+@@ -136,6 +136,20 @@
+     TEST_ASSERT_EQUAL_HEX32(RAIL_SELFTEST_PINS, rail_selftest_table(t));
+ }
+ 
+static void test_each_fan_pin_collision_is_caught(void)
+{
+    const int fan_pins[] = {
+        BOARD_PIN_FAN_EN, BOARD_PIN_FAN_PWM,
+        BOARD_PIN_FAN_TACH_IN, BOARD_PIN_FAN_TACH_OUT,
+    };
+    rail_cfg_t t[N];
+    for (unsigned i = 0; i < sizeof(fan_pins) / sizeof(fan_pins[0]); i++) {
+        copy_real_table(t);
+        t[0].efuse_en = fan_pins[i];
+        TEST_ASSERT_EQUAL_HEX32(RAIL_SELFTEST_PINS, rail_selftest_table(t));
+    }
+}
+
+ /* 两样一起坏，两位一起报 —— 别在第一个错上就 return。 */
+ static void test_two_kinds_of_breakage_report_two_bits(void)
+ {
+@@ -378,7 +392,8 @@
+     static const int strapping[] = BOARD_PINS_STRAPPING;
+     static const int reserved[] = BOARD_PINS_RESERVED;
+     static const int others[] = {
+-        BOARD_PIN_I2C_SDA, BOARD_PIN_I2C_SCL,  BOARD_PIN_FAN_TACH, BOARD_PIN_FAN_PWM,
+        BOARD_PIN_I2C_SDA, BOARD_PIN_I2C_SCL,  BOARD_PIN_FAN_TACH_IN, BOARD_PIN_FAN_PWM,
+        BOARD_PIN_FAN_EN, BOARD_PIN_FAN_TACH_OUT,
+         BOARD_PIN_NTC1,    BOARD_PIN_NTC2,     BOARD_PIN_USB_DM,   BOARD_PIN_USB_DP,
+         BOARD_PIN_UP_VBUS_DET, SR595_PIN_SER,  SR595_PIN_SRCLK,    SR595_PIN_RCLK,
+         SR595_PIN_OE_N,    PCA9555_PIN_INT_N,
+@@ -583,6 +598,7 @@
+     RUN_TEST(test_a_faithful_copy_of_the_real_table_passes);
+     RUN_TEST(test_a_cell_that_drifted_from_the_driver_is_caught);
+     RUN_TEST(test_every_kind_of_bad_pin_is_caught);
+    RUN_TEST(test_each_fan_pin_collision_is_caught);
+     RUN_TEST(test_two_kinds_of_breakage_report_two_bits);
+     RUN_TEST(test_no_two_rails_share_anything);
+     RUN_TEST(test_shift_chain_bits_avoid_hub_reset_and_the_unused_pins);
@@ -0,0 +1,21 @@
+{
+  "source": "D:\\DCDC\\firmware",
+  "candidate": "D:\\DCDC\\kicad\\out\\firmware-fan-r2",
+  "files": [
+    {
+      "path": "main/board_pins.h",
+      "source_sha256": "bea092ed746c1415ac1e4e6df5978c1de2c7b763ae914936a9f3755d12afef17",
+      "candidate_sha256": "7bc45527503b595587be851e70630ee8192c833d1a87cbcd98d0ba0dc45e6325"
+    },
+    {
+      "path": "main/rail_cfg.c",
+      "source_sha256": "772956bfbf519de07350556073f8363174c75363108a9e5868f5a490ca471871",
+      "candidate_sha256": "70ec0330c3973c098612bdbc100d108838b12e921b953fd1a3e408ce40f3363e"
+    },
+    {
+      "path": "test/test_rail_cfg.c",
+      "source_sha256": "175f6721ec58e3e00575aebe136cfc32ba2006455621110aedef6d1b20da5cb6",
+      "candidate_sha256": "aa1560ed8b60935dc4e670b5f18f5e3322b9d0af693163070bc6280195b17ea1"
+    }
+  ]
+}