[问答]

ESP32-S2使用USB引脚作为UART模块不断重启求解

问答对人有帮助，内容完整，我也想知道答案 0 我需要使用 ESP32-S2 引脚 GPIO19 (USB_DM) 和 GPIO20 (USB_DP) 作为 UART，但是当我尝试时，模块不断重启。我认为是由于 USB 内部引脚上拉。 ESP32-C3 datasheet 中直接说USB 引脚的上拉电阻由USB_SERIAL_JTAG_DP_PULLUP 位控制，我们可以清除它来工作：代码： CLEAR_PERI_REG_MASK(USB_SERIAL_JTAG_CONF0_REG, USB_SERIAL_JTAG_DP_PULLUP); ESP32-S3 数据表什么也没说，但在这个论坛上我找到了一个解决方案（经过测试和工作）：代码： CLEAR_PERI_REG_MASK(USB_DEVICE_CONF0_REG, USB_DEVICE_USB_PAD_ENABLE); ESP32-S2 应该怎么办？我还注意到，如果不使用额外的系统调用，这可以部分工作，但仅在使用 TX 时有效。一旦我连接 RX，Wi-Fi 驱动程序就无法初始化。我正在使用外部 UART-USB 适配器来测试这种情况。 0
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答案对人有帮助，有参考价值 0 这是一个日志：代码： I (24) boot: ESP-IDF 4.4.2 2nd stage bootloader I (24) boot: compile time 12:10:53 I (24) boot: chip revision: 0 I (25) boot.esp32s2: SPI Speed : 80MHz I (30) boot.esp32s2: SPI Mode : DIO I (35) boot.esp32s2: SPI Flash Size : 4MB I (40) boot: Enabling RNG early entropy source... I (45) boot: Partition Table: I (49) boot: ## Label Usage Type ST Offset Length I (56) boot: 0 otadata OTA data 01 00 00009000 00002000 I (63) boot: 1 phy_init RF data 01 01 0000b000 00001000 I (71) boot: 2 app0 OTA app 00 10 00010000 001c0000 I (78) boot: 3 app1 OTA app 00 11 001d0000 001c0000 I (86) boot: 4 nvs WiFi data 01 02 00390000 0006d000 I (93) boot: End of partition table I (98) esp_image: segment 0: paddr=00010020 vaddr=3f000020 size=1c750h (116560) map I (129) esp_image: segment 1: paddr=0002c778 vaddr=3ffc4c00 size=0337ch ( 13180) load I (132) esp_image: segment 2: paddr=0002fafc vaddr=40022000 size=0051ch ( 1308) load I (135) esp_image: segment 3: paddr=00030020 vaddr=40080020 size=84b28h (543528) map I (252) esp_image: segment 4: paddr=000b4b50 vaddr=4002251c size=126e4h ( 75492) load I (271) esp_image: segment 5: paddr=000c723c vaddr=50000000 size=00010h ( 16) load I (280) boot: Loaded app from partition at offset 0x10000 I (280) boot: Disabling RNG early entropy source... I (293) cache: Instruction cache : size 8KB, 4Ways, cache line size 32Byte I (293) cpu_start: Pro cpu up. I (307) cpu_start: Pro cpu start user code I (307) cpu_start: cpu freq: 160000000 I (307) cpu_start: Application information: I (312) cpu_start: Project name: tion4s-hw-s2 I (317) cpu_start: App version: 2022.12.7 I (322) cpu_start: Compile time: Jan 27 2023 12:41:34 I (328) cpu_start: ELF file SHA256: f10cb940b7cc9d52... I (334) cpu_start: ESP-IDF: 4.4.2 I (339) heap_init: Initializing. RAM available for dynamic allocation: I (346) heap_init: At 3FFCC480 len 0002FB80 (190 KiB): DRAM I (353) heap_init: At 3FFFC000 len 00003A10 (14 KiB): DRAM I (359) heap_init: At 3FF9E000 len 00002000 (8 KiB): RTCRAM I (366) spi_flash: detected chip: generic I (370) spi_flash: flash io: dio I (378) cpu_start: Starting scheduler on PRO CPU. I (561) system_api: Base MAC address is not set I (566) system_api: read default base MAC address from EFUSE I (594) wifi:wifi firmware version: eeaa27d I (595) wifi:wifi certification version: v7.0 I (596) wifi:config NVS flash: enabled I (600) wifi:config nano formating: disabled I (604) wifi:Init data frame dynamic rx buffer num: 32 I (608) wifi:Init management frame dynamic rx buffer num: 32 I (614) wifi:Init management short buffer num: 32 I (618) wifi:Init dynamic tx buffer num: 32 I (622) wifi:Init static rx buffer size: 1600 I (626) wifi:Init static rx buffer num: 10 I (630) wifi:Init dynamic rx buffer num: 32 I (634) wifi_init: rx ba win: 6 I (638) wifi_init: tcpip mbox: 32 I (642) wifi_init: udp mbox: 6 I (646) wifi_init: tcp mbox: 6 I (649) wifi_init: tcp tx win: 5744 I (653) wifi_init: tcp rx win: 5744 I (658) wifi_init: tcp mss: 1440 I (662) wifi_init: WiFi IRAM OP enabled I (666) wifi_init: WiFi RX IRAM OP enabled I (673) phy_init: phy_version 2300,d67cf06,Feb 10 2022,10:03:07 I (693) phy: pll_cap_ext 10 I (695) phy: pll_cap_ext 10 I (698) phy: pll_cap_ext 10 I (702) phy: pll_cap_ext 10 I (705) phy: pll_cap_ext 10 I (709) phy: pll_cap_ext 10 I (712) phy: pll_cap_ext 10 I (716) phy: pll_cap_ext 10 I (719) phy: pll_cap_ext 10 I (723) phy: pll_cap_ext 10 I (726) phy: pll_cap_ext 10 I (738) phy: pll_cap_ext 10 I (740) phy: pll_cap_ext 10 I (744) phy: pll_cap_ext 10 I (744) phy: pll_cap_ext 10 I (745) phy: pll_cap_ext 10 I (747) phy: pll_cap_ext 10 I (760) phy: pll_cap_ext 10 I (767) phy: pll_cap_ext 10 I (769) phy: pll_cap_ext 10 I (769) phy: pll_cap_ext 10 I (770) phy: pll_cap_ext 10 I (772) phy: pll_cap_ext 10 I (776) phy: pll_cap_ext 10 I (779) phy: pll_cap_ext 10 I (783) phy: pll_cap_ext 10 I (786) phy: pll_cap_ext 10 I (789) phy: pll_cap_ext 10 I (793) phy: pll_cap_ext 10 I (797) phy: pll_cap_ext 10 I (800) phy: pll_cap_ext 10 I (803) phy: pll_cap_ext 10 abort() was called at PC 0x40024977 on core 0 Backtrace:0x40023e7e:0x3ffd9aa00x40029f05:0x3ffd9ac0 0x40030012:0x3ffd9ae0 0x40024977:0x3ffd9b50 0x40024ab1:0x3ffd9b80 0x40024b2a:0x3ffd9ba0 0x400f73ba:0x3ffd9bd0 0x400fa3ed:0x3ffd9ee0 0x40104b2d:0x3ffd9f10 0x4002ec21:0x3ffd9f40 0x400f0ae2:0x3ffd9f90 0x400f0b0b:0x3ffda010 0x400268db:0x3ffda060 0x400ea46b:0x3ffda0c0 0x400ea503:0x3ffda0e0 0x400ea574:0x3ffda100 0x400ec02f:0x3ffda120 0x400ec0ea:0x3ffda140 0x400f0efb:0x3ffda160 0x400f0f82:0x3ffda190 0x400d3236:0x3ffda1b0 0x400d3961:0x3ffda1d0 0x400d23ea:0x3ffda1f0 0x400317c1:0x3ffda210 ELF file SHA256: f10cb940b7cc9d52 Rebooting... 并解码回溯：代码： 0x40023e7e: panic_abort at /Users/dentra/.platformio/packages/framework-espidf/components/esp_system/panic.c:402 0x40030012: abort at /Users/dentra/.platformio/packages/framework-espidf/components/newlib/abort.c:46 0x40024977: lock_acquire_generic at /Users/dentra/.platformio/packages/framework-espidf/components/newlib/locks.c:139 0x40024ab1: _lock_acquire_recursive at /Users/dentra/.platformio/packages/framework-espidf/components/newlib/locks.c:167 0x40024b2a: __retarget_lock_acquire_recursive at /Users/dentra/.platformio/packages/framework-espidf/components/newlib/locks.c:323 0x400f73ba: _vfprintf_r at /builds/idf/crosstool-NG/.build/HOST-x86_64-apple-darwin12/xtensa-esp32s2-elf/src/newlib/newlib/libc/stdio/vfprintf.c:853 (discriminator 2) 0x400fa3ed: vprintf at /builds/idf/crosstool-NG/.build/HOST-x86_64-apple-darwin12/xtensa-esp32s2-elf/src/newlib/newlib/libc/stdio/vprintf.c:34 (discriminator 5) 0x40104b2d: esp_log_writev at /Users/dentra/.platformio/packages/framework-espidf/components/log/log.c:200 0x4002ec21: esp_log_write at /Users/dentra/.platformio/packages/framework-espidf/components/log/log.c:210 0x400f0ae2: lib_printf at /Users/dentra/.platformio/packages/framework-espidf/components/esp_phy/src/lib_printf.c:39 (discriminator 13) 0x400f0b0b: phy_printf at /Users/dentra/.platformio/packages/framework-espidf/components/esp_phy/src/lib_printf.c:49 0x400268db: pll_vol_cal at ??:? 0x400ea46b: set_chan_freq_sw_start at ??:? 0x400ea503: set_channel_rfpll_freq at ??:? 0x400ea574: chip_v7_set_chan at ??:? 0x400ec02f: bb_init at ??:? 0x400ec0ea: register_chipv7_phy at ??:? 0x400f0efb: esp_phy_load_cal_and_init at /Users/dentra/.platformio/packages/framework-espidf/components/esp_phy/src/phy_init.c:716 0x400f0f82: esp_phy_enable at /Users/dentra/.platformio/packages/framework-espidf/components/esp_phy/src/phy_init.c:236 0x400d3236: wifi_hw_start at ??:? 0x400d3961: wifi_start_process at ??:? 0x400d23ea: ieee80211_ioctl_process at ??:? 0x400317c1: ppTask at ??:?

2023-3-1 14:23:09 评论举报胡楚翘