kevin
e7c82d0b69
- 移除variant_nrf52LoopHook中P0.11调试翻转代码(根因:TX时 DIO2拉高TXEN,loop hook同时翻转RXEN导致双高,射频开关 未定义行为->PA电流尖峰->VDD跌落->HardFault) - 定义SX126X_RXEN(P0.11),由RadioLib在TX时拉低/RX时拉高, 与DIO2驱动的TXEN协调配合 - POFCON关闭逻辑从只执行3次改为每次loop检查,防止SoftDevice 重新开启 - 修正initVariant注释(SystemInit已处理PSELRESET,此为兜底) - 添加DIAGNOSTICS.md记录SWD诊断过程和硬件修复建议
75 lines
3.1 KiB
C++
75 lines
3.1 KiB
C++
/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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Copyright (c) 2016 Sandeep Mistry All right reserved.
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "variant.h"
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#include "nrf.h"
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#include "wiring_constants.h"
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#include "wiring_digital.h"
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#include "SEGGER_RTT.h"
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extern "C" {
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#include "nrf_soc.h"
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}
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const uint32_t g_ADigitalPinMap[] = {
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// P0
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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// P1
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
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void initVariant()
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{
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// Configure P0.18 as RESET pin (UICR->PSELRESET).
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// nrf52_recover (ERASEALL) clears UICR to 0xFFFFFFFF, disabling reset.
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// SystemInit() already handles this via CONFIG_GPIO_AS_PINRESET; this is a
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// safety net that runs before SoftDevice is enabled, so NVMC is accessible.
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if ((NRF_UICR->PSELRESET[0] != 18) || (NRF_UICR->PSELRESET[1] != 18)) {
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NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
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while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {}
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NRF_UICR->PSELRESET[0] = 18;
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while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {}
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NRF_UICR->PSELRESET[1] = 18;
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while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {}
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NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
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while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {}
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NVIC_SystemReset(); // Reboot to apply PSELRESET (hardware reconfigures P0.18)
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}
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}
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void variant_shutdown()
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{
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nrf_gpio_cfg_input(BUTTON_PIN, NRF_GPIO_PIN_PULLUP); // Enable internal pull-up on the button pin
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nrf_gpio_pin_sense_t sense = NRF_GPIO_PIN_SENSE_LOW; // Configure SENSE signal on low edge
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nrf_gpio_cfg_sense_set(BUTTON_PIN, sense); // Apply SENSE to wake up the device from the deep sleep
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}
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void variant_nrf52LoopHook(void)
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{
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// Disable POFCON via SoftDevice API - direct NRF_POWER->POFCON writes are
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// ignored once SoftDevice is enabled. E22-400M33S TX causes transient VDD
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// drops that trigger POFWARN -> lfs_assert -> NVIC_SystemReset.
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// SoftDevice may re-enable POFCON during BLE events, so check every iteration.
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if (NRF_POWER->POFCON & (1 << POWER_POFCON_POF_Pos)) {
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sd_power_pof_enable(0);
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SEGGER_RTT_printf(0, "variant_loop: POFCON re-enabled, disabling (POFCON=0x%x)\r\n", NRF_POWER->POFCON);
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}
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}
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