From 5efdf54920479b85bff2c862598b4ee100bcae7d Mon Sep 17 00:00:00 2001 From: Peter Barker Date: Thu, 17 Sep 2026 23:36:28 +1000 Subject: [PATCH] Revert "hwdef: keep PA15 pulled up in the YJUAV_A6SE_H743 bootloader" This reverts commit 2f87db990f3a88b3e06a284b4afab562a46f8fde. PR #34359 was merged by mistake. On the bench, with an ESC on YJUAV_A6SE_H743 output 1, the hold presents a continuous high (full throttle to a PWM ESC) for about 10.5s after every reset, and for as long as safety is engaged when output 1 is a motor outside BRD_SAFETY_MASK, which is Copter's default. The ESC started to enter throttle calibration. Back the change out until the hold can be chosen per output. --- .../AP_HAL_ChibiOS/hwdef/YJUAV_A6SE_H743/hwdef-bl.dat | 7 ------- 1 file changed, 7 deletions(-) diff --git a/libraries/AP_HAL_ChibiOS/hwdef/YJUAV_A6SE_H743/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/YJUAV_A6SE_H743/hwdef-bl.dat index 7f97df93617..9e821dfdf02 100644 --- a/libraries/AP_HAL_ChibiOS/hwdef/YJUAV_A6SE_H743/hwdef-bl.dat +++ b/libraries/AP_HAL_ChibiOS/hwdef/YJUAV_A6SE_H743/hwdef-bl.dat @@ -39,13 +39,6 @@ PD10 LED_BOOTLOADER OUTPUT OPENDRAIN HIGH # green PG0 LED_ACTIVITY OUTPUT OPENDRAIN HIGH # blue define HAL_LED_ON 0 -# PA15 (JTDI) comes out of every reset and out of power-on with its internal -# pull-up enabled, and drives PWM1. Keep it pulled up through the bootloader -# so a servo on M1 sees one long high until the application starts its timer, -# instead of the 500 to 700us pulse it sees when the bootloader releases the -# pull. -PA15 PWM1_HOLD INPUT PULLUP - # Add CS pins to ensure they are high in bootloader PE4 IMU1_CS CS PA0 IMU2_CS CS