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https://github.com/esp8266/Arduino.git
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83f5f29cfd
without any external wiring.
This patch introduces the new method
Esp.rebootIntoUartDownloadMode()
When the user calls this method the ESP8266 reboots into the UART
download mode. In this mode the user can use esptool.py to flash a new
firmware file. The following command was used to test it:
$ esptool.py --before no_reset --after soft_reset --chip esp8266 \
--port /dev/ttyUSB0 --baud 460800 write_flash 0x0 firmware.bin
The implementation is based on the original implementation in the
boot ROM. Some parts of the original implementation can be found in
[1]. This patch is a squashed and simplified version of [2]. The non
squashed version might be helpful in case of debugging issues.
[1] https://github.com/twischer/xtensa-subjects/blob/master/reversed/bootrom.c
[2] https://github.com/twischer/Arduino/tree/reboot_uart_download_full
Signed-off-by: Timo Wischer <twischer@freenet.de>
37 lines
1.4 KiB
Bash
Executable File
37 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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set -e
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export PATH=../../xtensa-lx106-elf/bin:$PATH
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VERSION=$(basename ${PWD})
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addSymbol_system_func1() {
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ADDRESS=$1
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xtensa-lx106-elf-objcopy --add-symbol system_func1=.irom0.text:${ADDRESS},function,global user_interface.o
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}
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# Remove mem_manager.o from libmain.a to use custom heap implementation,
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# and time.o to fix redefinition of time-related functions:
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xtensa-lx106-elf-ar d libmain.a mem_manager.o
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xtensa-lx106-elf-ar d libmain.a time.o
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# Rename `hostname` and `default_hostname` symbols:
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xtensa-lx106-elf-ar x libmain.a eagle_lwip_if.o user_interface.o
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xtensa-lx106-elf-objcopy --redefine-sym hostname=wifi_station_hostname user_interface.o
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xtensa-lx106-elf-objcopy --redefine-sym hostname=wifi_station_hostname eagle_lwip_if.o
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xtensa-lx106-elf-objcopy --redefine-sym default_hostname=wifi_station_default_hostname user_interface.o
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xtensa-lx106-elf-objcopy --redefine-sym default_hostname=wifi_station_default_hostname eagle_lwip_if.o
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if [[ ${VERSION} == "NONOSDK221" ]]; then
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addSymbol_system_func1 "0x60"
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elif [[ ${VERSION} == "NONOSDK22x"* ]]; then
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addSymbol_system_func1 "0x54"
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elif [[ ${VERSION} == "NONOSDK3"* ]]; then
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addSymbol_system_func1 "0x60"
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else
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echo "WARN: Unknown address for system_func1() called by system_restart_local()"
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fi
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xtensa-lx106-elf-ar r libmain.a eagle_lwip_if.o user_interface.o
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rm -f eagle_lwip_if.o user_interface.o
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