To support LGT8F328P

[mcuee]

The following bootloader works fine but I think the source code in the repo does not match the bootloader hex file.
https://github.com/LGTMCU/Larduino_HSP/tree/master/hardware/LGT/avr/bootloaders/lgt8fx8p

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c urclock -P COM20 -b 57600 -p lgt8f328p -xbootsize=3072 -qqt
avrdude> dump flash 0x7400
7400  11 24 8f ef 98 e0 9e bf  8d bf 94 b7 14 be 89 2f  |.$............./|
7410  8d 70 11 f0 89 2f ec d1  90 e8 90 93 f2 00 83 e9  |.p.../..........|
7420  80 93 f2 00 90 93 61 00  81 e0 80 93 61 00 96 bf  |......a.....a...|
7430  8c e4 86 bf 85 e0 80 93  81 00 88 e1 80 93 c1 00  |................|
7440  86 e0 80 93 c2 00 80 e1  80 93 c4 00 8d e0 ba d1  |................|
7450  25 9a 96 e0 20 e3 3c ef  51 e0 40 e2 30 93 85 00  |%... .<.Q.@.0...|
7460  20 93 84 00 56 bb b0 9b  fe cf 85 b1 84 27 85 b9  | ...V........'..|
7470  a8 95 91 50 99 f7 88 24  99 24 54 01 cc 24 dd 24  |...P...$.$T..$.$|
7480  64 e9 66 2e 51 e0 25 2e  31 2c 41 2c 51 2c 89 d1  |d.f.Q.%.1,A,Q,..|
7490  81 34 61 f4 86 d1 18 2f  9b d1 12 38 29 f1 11 38  |.4a..../...8)..8|
74a0  11 f4 85 e0 01 c0 83 e0  74 d1 70 c1 82 34 11 f4  |........t.p..4..|
74b0  84 e1 03 c0 85 34 19 f4  85 e0 92 d1 67 c1 85 35  |.....4......g..5|
74c0  79 f4 6f d1 e8 2e ff 24  6c d1 08 2f 10 e0 10 2f  |y.o....$l../.../|
74d0  00 27 0e 29 1f 29 00 0f  11 1f 7a d1 68 01 56 c1  |.'.).)....z.h.V.|
74e0  86 35 21 f4 84 e0 7c d1  80 e0 de cf 84 36 09 f0  |.5!...|......6 .|
74f0  d1 c0 57 d1 90 e0 f8 2e  ee 24 53 d1 e8 0e f1 1c  |..W......$S.....|

avrdude> dump flash
7500  50 d1 78 2e e7 01 00 e0  11 e0 4b d1 f8 01 81 93  |P.x.......K.....|
7510  8f 01 21 97 d1 f7 11 bc  8d 2d 99 27 82 bd 82 b5  |..!......-.'....|
7520  86 95 86 95 28 2f d5 01  c4 01 02 2e 04 c0 b6 95  |....(/..........|
7530  a7 95 97 95 87 95 0a 94  d2 f7 80 fd 19 c0 f6 e4  |...... .........|
7540  7f 16 b1 f4 d2 01 c1 01  04 c0 88 0f 99 1f aa 1f  |................|
7550  bb 1f 2a 95 d2 f7 88 2a  99 2a aa 2a bb 2a 82 b5  |..*....*.*.*.*..|
7560  8c 77 84 37 29 f0 6f ba  82 e9 8f bb 00 00 00 00  |.w.7).o.........|
7570  2f d1 e5 e4 7e 16 d1 f4  96 01 14 c0 21 bd 2f 5f  |/...~.......!./_|
7580  3f 4f 83 2f 99 27 82 bd  c0 50 df 4f 88 81 c0 50  |?O./.'...P.O...P|
7590  d1 40 80 bd 82 b5 88 37  20 f0 f4 e0 ff bb 82 e0  |.@.....7 .......|
75a0  8f bb 21 96 ce 15 df 05  48 f3 df c0 82 b5 84 37  |..!.....H......7|
75b0  08 f0 ec c0 c1 14 d1 04  09 f0 4e c0 60 91 00 01  |........ .N.`...|
75c0  70 91 01 01 87 2f 90 e0  98 2f 88 27 26 2f 30 e0  |p..../.../.'&/0.|
75d0  82 2b 93 2b 90 93 85 01  80 93 84 01 40 91 02 01  |.+.+........@...|
75e0  50 91 03 01 85 2f 90 e0  98 2f 88 27 24 2f 30 e0  |P..../.../.'$/0.|
75f0  82 2b 93 2b 90 93 87 01  80 93 86 01 20 91 18 01  |.+.+........ ...|

avrdude> dump flash
7600  80 91 19 01 90 e0 98 2f  88 27 30 e0 82 2b 93 2b  |......./.'0..+.+|
7610  90 93 89 01 80 93 88 01  20 91 1a 01 80 91 1b 01  |........ .......|
7620  90 e0 98 2f 88 27 30 e0  82 2b 93 2b 90 93 8b 01  |.../.'0..+.+....|
7630  80 93 8a 01 60 93 18 01  70 93 19 01 40 93 1a 01  |....`...p...@...|
7640  50 93 1b 01 8c e0 80 93  00 01 60 92 01 01 10 92  |P.........`.....|
7650  02 01 ea e3 e0 93 03 01  e0 e0 f1 e0 11 bc 80 81  |................|
7660  80 bd 81 e0 81 bd 81 81  80 bd 82 e0 81 bd 82 81  |................|
7670  80 bd 83 e0 81 bd 83 81  80 bd 8e 2f 8c 0d 81 bd  |.........../. ..|
7680  84 ea 8f bb 82 ea 8f bb  34 96 81 e0 e0 38 f8 07  |........4....8..|
7690  29 f7 7c c0 84 37 09 f0  6b c0 83 d0 90 e0 f8 2e  |).|..7 .k.......|
76a0  ee 24 7f d0 e8 0e f1 1c  7c d0 18 2f 91 d0 15 34  |.$......|../...4|
76b0  89 f4 e6 01 87 01 c1 bd  21 96 8d 2f 99 27 82 bd  |........!../.'..|
76c0  e1 e0 ef bb 00 00 00 00  80 b5 63 d0 01 50 10 40  |..........c..P.@|
76d0  91 f7 4b c0 e6 01 87 01  20 97 29 f4 80 91 84 01  |..K..... .).....|
76e0  90 91 85 01 3c c0 c1 30  d1 05 29 f4 80 91 84 01  |....<..0..).....|
76f0  90 91 85 01 0f c0 c2 30  d1 05 29 f4 80 91 86 01  |.......0..).....|

avrdude> dump flash
7700  90 91 87 01 2c c0 c3 30  d1 05 39 f4 80 91 86 01  |....,..0..9.....|
7710  90 91 87 01 89 2f 99 27  22 c0 c8 31 d1 05 29 f4  |...../.'"..1..).|
7720  80 91 88 01 90 91 89 01  1a c0 c9 31 d1 05 29 f4  |...........1..).|
7730  80 91 88 01 90 91 89 01  ed cf ca 31 d1 05 29 f4  |...........1..).|
7740  80 91 8a 01 90 91 8b 01  0a c0 cb 31 d1 05 29 f4  |........ ..1..).|
7750  80 91 8a 01 90 91 8b 01  dd cf fe 01 84 91 21 96  |..............!.|
7760  18 d0 01 50 10 40 09 f0  b7 cf ce 0c df 1c 0e c0  |...P.@ .... ....|
7770  85 37 39 f4 2d d0 8e e1  0c d0 85 e9 0a d0 8f e0  |.79.-... ... ...|
7780  93 ce 81 35 11 f4 8c e0  1d d0 22 d0 80 e1 01 d0  |...5......".....|
7790  7e ce 98 2f 80 91 c0 00  85 ff fc cf 90 93 c6 00  |~../............|
77a0  08 95 80 91 c0 00 87 ff  fc cf 80 91 c0 00 84 fd  |................|
77b0  01 c0 a8 95 80 91 c6 00  08 95 9a e2 9a 95 f1 f7  |................|
77c0  08 95 08 95 e0 e6 f0 e0  98 e1 90 83 80 83 08 95  |................|
77d0  e8 df 80 32 19 f0 8d e0  f5 df ff cf 84 e1 d9 cf  |...2............|
77e0  1f 93 18 2f de df 11 50  e9 f7 f2 df 1f 91 08 95  |.../...P........|
77f0  28 2e 80 e0 e7 df ec e0  ff 27 09 94 ff ff 00 05  |(........' .....|

avrdude> dump flash
7800  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7810  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7820  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7830  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7840  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7850  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7860  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7870  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7880  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
7890  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
78a0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
78b0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
78c0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
78d0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
78e0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
78f0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|

[WestfW]

Not impressed that they're not paying attention to the license.
Even removed the copyrights!

[mcuee]

Not impressed that they're not paying attention to the license. Even removed the copyrights!

Indeed.

[mcuee]

Somehow the factory hex file wokes but none my build hex file work.

I use a Nano and follow the following instruction to build LGTISP which seems to work fine.
https://github.com/dbuezas/lgt8fx/tree/master/lgt8f/libraries/LarduinoISP

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c avrisp -P COM12 -p lgt8f328p -U .\optiboot_lgt8f328p.hex

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)
avrdude: Note: flash memory has been specified, an erase cycle will be performed.
         To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file .\optiboot_lgt8f328p.hex for flash
         with 1002 bytes in 3 sections within [0, 0x77ff]
         using 9 pages and 150 pad bytes
avrdude: writing 1002 bytes flash ...

Writing | ################################################## | 100% 0.38 s

avrdude: 1002 bytes of flash written
avrdude: verifying flash memory against .\optiboot_lgt8f328p.hex

Reading | ################################################## | 100% 0.06 s

avrdude: 1002 bytes of flash verified

avrdude done.  Thank you.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c arduino -P COM19 -b 57600 -p lgt8f328p

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)

avrdude done.  Thank you.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c avrisp -P COM12 -p lgt8f328p
 -U .\optiboot_lgt8f328p_build1.hex -qq && echo OK
OK

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c arduino -P COM19 -b 57600 -p lgt8f328p
avrdude error: programmer is not responding
avrdude warning: attempt 1 of 10: not in sync: resp=0x00

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c avrisp -P COM12 -p lgt8f328p 
-U .\optiboot_lgt8f328p_build2.hex -qq && echo OK
OK

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c arduino -P COM19 -b 57600 -p lgt8f328p
avrdude error: programmer is not responding
avrdude warning: attempt 1 of 10: not in sync: resp=0x00

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c avrisp -P COM12 -p lgt8f328p
 -U .\optiboot_lgt8f328p_build3.hex -qq && echo OK
OK

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c arduino -P COM19 -b 57600 -p lgt8f328p
avrdude error: programmer is not responding
avrdude warning: attempt 1 of 10: not in sync: resp=0x00

[mcuee]

I found a mistake in my build that frequency should be 16MHz. But it still does not work.

I will give up for now. Hopefully someone else who is more familiar with the chip can chime in and help out.

[mcuee]

This is with WinAVR.

$ avr-gcc -v
Using built-in specs.
Target: avr
Configured with: ../gcc-4.3.3/configure --enable-win32-registry=WinAVR-20100110 --with-gmp=/usr/local --with-mpfr=/usr/local --prefix=/c/WinAVR --target=avr --enable-languages=c,c++,objc --with-dwarf2 --enable-doc --disable-shared --disable-libada --disable-libssp --disable-nls --with-pkgversion='WinAVR 20100110' --with-bugurl='URL:http://sourceforge.net/tracker/?atid=520074&group_id=68108&func=browse'
Thread model: single
gcc version 4.3.3 (WinAVR 20100110)

$ make lgt8f328p
BAUD RATE CHECK: Desired: 57600, Real: 57142, UBRRL = 34, Error=0.7%
avr-gcc -g -Wall -Os -fno-inline-small-functions -fno-split-wide-types -mshort-calls -mmcu=atmega328p -DF_CPU=16000000L   -DBAUD_RATE=57600 -DLED_START_FLASHES=3      -DEXT_OSC=0 '-DVIRTUAL_BOOT_PARTITION'   -c -o optiboot.o optiboot.c
avr-gcc -g -Wall -Os -fno-inline-small-functions -fno-split-wide-types -mshort-calls -mmcu=atmega328p -DF_CPU=16000000L   -DBAUD_RATE=57600 -DLED_START_FLASHES=3      -DEXT_OSC=0 '-DVIRTUAL_BOOT_PARTITION' -Wl,--section-start=.bootv=0x0 -Wl,--section-start=.text=0x7400 -Wl,--section-start=.version=0x77fe -Wl,--relax -nostartfiles -nostdlib -o optiboot_lgt8f328p.elf optiboot.o
avr-size optiboot_lgt8f328p.elf
   text    data     bss     dec     hex filename
    996       0       0     996     3e4 optiboot_lgt8f328p.elf
avr-objcopy -j .bootv -j .text -j .data -j .version --set-section-flags .version=alloc,load --set-section-flags .bootv=alloc,load -O ihex optiboot_lgt8f328p.elf optiboot_lgt8f328p.hex
avr-objdump -h -S optiboot_lgt8f328p.elf > optiboot_lgt8f328p.lst

$ cat optiboot_lgt8f328p.hex
:040000000C94003A22
:1074000011248FEF98E09EBF8DBF94B714BE892FD3
:107410008D7011F0892FE0D190E89093F20083E90C
:107420008093F2009093610081E08093610096BFA9
:107430008CE486BF85E08093810088E18093C10061
:1074400086E08093C20080E18093C4008DE0AED1DD
:10745000259A96E020E33CEF51E040E2309385002E
:107460002093840056BBB09BFECF85B1842785B99D
:10747000A895915099F7662477244301CC24DD2404
:1074800064E9A62E51E0252E312C412C512C7DD1C2
:10749000813461F47AD1182F8FD1123829F1113843
:1074A00011F485E001C083E068D164C1823411F435
:1074B00084E103C0853419F485E086D15BC185354C
:1074C00079F463D1E82EFF2460D1082F10E0102F4B
:1074D00000270E291F29000F111F6ED168014AC114
:1074E000863521F484E070D180E0DECF843609F067
:1074F000C5C04BD190E0F82EEE2447D1E80EF11C28
:1075000044D1B82EE70100E011E03FD1F8018193AA
:107510008F012197D1F711BC8D2D992782BD82B59E
:1075200086958695282FD401C301022E04C0B695F6
:10753000A795979587950A94D2F780FD15C0F6E434
:10754000BF1691F4D201C10104C0880F991FAA1F70
:10755000BB1F2A95D2F7682A792A8A2A9B2AAFBAB2
:1075600082E98FBB0000000027D1E5E4BE16B1F42C
:10757000960110C021BD2F5F3F4F832F992782BDF9
:10758000C050DF4F888180BDF4E0FFBB82E08FBB3D
:10759000CF5FD040CE15DF0568F3DBC0C114D10446
:1075A00009F04EC06091000170910101872F90E0B9
:1075B000982F8827262F30E0822B932B90938501DC
:1075C000809384014091020150910301852F90E046
:1075D000982F8827242F30E0822B932B90938701BC
:1075E00080938601209118018091190190E0982FD5
:1075F000882730E0822B932B909389018093880118
:1076000020911A0180911B0190E0982F882730E08B
:10761000822B932B90938B0180938A0160931801A6
:107620007093190140931A0150931B018CE08093D1
:107630000001A092010110920201EAE3E09303012C
:10764000E0E0F1E011BC808180BD81E081BD8181FD
:1076500080BD82E081BD828180BD83E081BD838168
:1076600080BD8E2F8C0D81BD84EA8FBB82EA8FBBDB
:10767000349681E0E038F80729F77CC0843709F0B8
:107680006BC083D090E0F82EEE247FD0E80EF11C82
:107690007CD0182F91D0153489F4E6018701C1BD43
:1076A00021968D2F992782BDE1E0EFBB00000000FD
:1076B00080B563D00150104091F74BC0E6018701BF
:1076C000209729F480918401909185013CC0C130BC
:1076D000D10529F480918401909185010FC0C230B9
:1076E000D10529F480918601909187012CC0C33087
:1076F000D10539F48091860190918701892F9927CE
:1077000022C0C831D10529F4809188019091890166
:107710001AC0C931D10529F480918801909189015D
:10772000EDCFCA31D10529F480918A0190918B0166
:107730000AC0CB31D10529F480918A0190918B0147
:10774000DDCFFE018491219618D00150104009F040
:10775000B7CFCE0CDF1C0EC0853739F42DD08EE1AB
:107760000CD085E90AD08FE09FCE813511F48CE0F2
:107770001DD022D080E101D08ACE982F8091C00008
:1077800085FFFCCF9093C60008958091C00087FFCD
:10779000FCCF8091C00084FD01C0A8958091C600F7
:1077A00008959AE29A95F1F708950895E0E6F0E0D9
:1077B00098E1908380830895E8DF803219F08DE0AE
:1077C000F5DFFFCF84E1D9CF1F93182FDEDF1150F3
:1077D000E9F7F2DF1F910895282E80E0E7DFECE063
:0477E000FF270994E2
:0277FE00000584
:040000030000740085
:00000001FF

The above seems to be the same as factory hex file.
https://github.com/LGTMCU/Larduino_HSP/blob/master/hardware/LGT/avr/bootloaders/lgt8fx8p/optiboot_lgt8f328p.hex

:040000000C94003A22
:1074000011248FEF98E09EBF8DBF94B714BE892FD3
:107410008D7011F0892FE0D190E89093F20083E90C
:107420008093F2009093610081E08093610096BFA9
:107430008CE486BF85E08093810088E18093C10061
:1074400086E08093C20080E18093C4008DE0AED1DD
:10745000259A96E020E33CEF51E040E2309385002E
:107460002093840056BBB09BFECF85B1842785B99D
:10747000A895915099F7662477244301CC24DD2404
:1074800064E9A62E51E0252E312C412C512C7DD1C2
:10749000813461F47AD1182F8FD1123829F1113843
:1074A00011F485E001C083E068D164C1823411F435
:1074B00084E103C0853419F485E086D15BC185354C
:1074C00079F463D1E82EFF2460D1082F10E0102F4B
:1074D00000270E291F29000F111F6ED168014AC114
:1074E000863521F484E070D180E0DECF843609F067
:1074F000C5C04BD190E0F82EEE2447D1E80EF11C28
:1075000044D1B82EE70100E011E03FD1F8018193AA
:107510008F012197D1F711BC8D2D992782BD82B59E
:1075200086958695282FD401C301022E04C0B695F6
:10753000A795979587950A94D2F780FD15C0F6E434
:10754000BF1691F4D201C10104C0880F991FAA1F70
:10755000BB1F2A95D2F7682A792A8A2A9B2AAFBAB2
:1075600082E98FBB0000000027D1E5E4BE16B1F42C
:10757000960110C021BD2F5F3F4F832F992782BDF9
:10758000C050DF4F888180BDF4E0FFBB82E08FBB3D
:10759000CF5FD040CE15DF0568F3DBC0C114D10446
:1075A00009F04EC06091000170910101872F90E0B9
:1075B000982F8827262F30E0822B932B90938501DC
:1075C000809384014091020150910301852F90E046
:1075D000982F8827242F30E0822B932B90938701BC
:1075E00080938601209118018091190190E0982FD5
:1075F000882730E0822B932B909389018093880118
:1076000020911A0180911B0190E0982F882730E08B
:10761000822B932B90938B0180938A0160931801A6
:107620007093190140931A0150931B018CE08093D1
:107630000001A092010110920201EAE3E09303012C
:10764000E0E0F1E011BC808180BD81E081BD8181FD
:1076500080BD82E081BD828180BD83E081BD838168
:1076600080BD8E2F8C0D81BD84EA8FBB82EA8FBBDB
:10767000349681E0E038F80729F77CC0843709F0B8
:107680006BC083D090E0F82EEE247FD0E80EF11C82
:107690007CD0182F91D0153489F4E6018701C1BD43
:1076A00021968D2F992782BDE1E0EFBB00000000FD
:1076B00080B563D00150104091F74BC0E6018701BF
:1076C000209729F480918401909185013CC0C130BC
:1076D000D10529F480918401909185010FC0C230B9
:1076E000D10529F480918601909187012CC0C33087
:1076F000D10539F48091860190918701892F9927CE
:1077000022C0C831D10529F4809188019091890166
:107710001AC0C931D10529F480918801909189015D
:10772000EDCFCA31D10529F480918A0190918B0166
:107730000AC0CB31D10529F480918A0190918B0147
:10774000DDCFFE018491219618D00150104009F040
:10775000B7CFCE0CDF1C0EC0853739F42DD08EE1AB
:107760000CD085E90AD08FE09FCE813511F48CE0F2
:107770001DD022D080E101D08ACE982F8091C00008
:1077800085FFFCCF9093C60008958091C00087FFCD
:10779000FCCF8091C00084FD01C0A8958091C600F7
:1077A00008959AE29A95F1F708950895E0E6F0E0D9
:1077B00098E1908380830895E8DF803219F08DE0AE
:1077C000F5DFFFCF84E1D9CF1F93182FDEDF1150F3
:1077D000E9F7F2DF1F910895282E80E0E7DFECE063
:0477E000FF270994E2
:0277FE00000584
:040000030000740085
:00000001FF

[mcuee]

And finaly it works.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c avrisp -P COM12 -p lgt8f328p -U .\optiboot_lgt8f328p_winavr.hex

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)
avrdude: Note: flash memory has been specified, an erase cycle will be performed.
         To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file .\optiboot_lgt8f328p_winavr.hex for flash
         with 1002 bytes in 3 sections within [0, 0x77ff]
         using 9 pages and 150 pad bytes
avrdude: writing 1002 bytes flash ...

Writing | ################################################## | 100% 0.38 s

avrdude: 1002 bytes of flash written
avrdude: verifying flash memory against .\optiboot_lgt8f328p_winavr.hex

Reading | ################################################## | 100% 0.06 s

avrdude: 1002 bytes of flash verified

avrdude done.  Thank you.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c urclock -P COM19 -b 57600 -p lgt8f328p -xshowall -xbootsize=3072

avrdude: AVR device initialized and ready to accept instructions
0 0000-00-00 00.00  application 0 store 0 meta 0 boot 3072 x0.0 ......... vector 0 (RESET) LGT8F328P

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c urclock -P COM19 -b 57600 -p lgt8f328p -U .\Blink.ino.lgt8fx8p.hex -xbootsize=3072

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)
avrdude: Note: flash memory has been specified, an erase cycle will be performed.
         To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file .\Blink.ino.lgt8fx8p.hex for flash
         with 1052 bytes in 1 section within [0, 0x41b]
         using 9 pages and 100 pad bytes
avrdude: preparing flash input for device bootloader
avrdude: writing 1052 bytes flash ...

Writing | ################################################## | 100% 0.37 s

avrdude: 1052 bytes of flash written
avrdude: verifying flash memory against .\Blink.ino.lgt8fx8p.hex

Reading | ################################################## | 100% 0.28 s

avrdude: 1052 bytes of flash verified

avrdude done.  Thank you.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c urclock -P COM19 -b 57600 -p lgt8f328p -xshowall -xbootsize=3072

avrdude: AVR device initialized and ready to accept instructions
0 2022-06-04 20.56 Blink.ino.lgt8fx8p.hex 1052 store 28610 meta 34 boot 3072 x0.0 ......... vector 0 (RESET) LGT8F328P

[mcuee]

I have also build the hex file with Atmel toolchain based on avr-gcc 5.4.0 and 7.3.0, as well as MSYS2 avr-gcc 8.5.0, only the avr-gcc 5.4.0 based version works.

PS C:\work\avr\avrdude_test\avrdude_bin> cat .\optiboot_lgt8f328p_gcc540.hex
:040000000C94003A22
:1074000000D01F92CDB7DEB711248FEF98E09EBF5A
:107410008DBF84B714BE982F9D7009F006D280E806
:107420008093F20093E99093F2008093610091E0E1
:107430009093610086BF8CE486BF85E080938100D5
:1074400088E18093C10096E09093C20090E1909310
:10745000C400809360008DE080936000259A86E0F0
:1074600040E35CEF31E020E25093850040938400DC
:1074700036BBB09BFECF95B1922795B9A8958150A8
:1074800099F71B821A82812C912C54012224239477
:1074900022E0322E412C512C320143949CD1813474
:1074A00061F499D1182FA8D1123811F1113811F4C3
:1074B00085E001C083E088D184C1823411F484E185
:1074C00003C0853419F485E0A3D17BC1853561F40F
:1074D00082D1898380D13981232F30E0382B220F4C
:1074E000331F3B832A836CC1863521F484E090D11D
:1074F00080E0E1CF843609F0C9C06DD1C82E6BD1D0
:10750000D12CDC2CCC24C80ED11C65D189838601FA
:10751000E12CFF24F3945FD1F70181937F010150A7
:107520001109C9F711BC2A813B81832F992782BD9C
:1075300082B586958695B501A401082E04C076957E
:107540006795579547950A94D2F740FD16C0398143
:10755000363499F4A301920104C0220F331F441F53
:10756000551F8A95D2F7822A932AA42AB52A84E93C
:107570008FBB82E98FBB000000003ED139813534DA
:10758000F9F44A815B81C40ED51EE0E0F1E04A8146
:107590005B814C155D0509F414C18A819B810196BC
:1075A0009B838A838A81815081BD2A813B81832F7D
:1075B000992782BD819180BD34E03FBB3FBAE7CFC0
:1075C0008A819B81892B09F045C040910101842F5C
:1075D00090E0982F882750910001852B909385018A
:1075E0008093840120910301822F90E0982F8827B7
:1075F00030910201832B90938701809386018091C3
:10760000190190E0982F882760911801862B90939C
:1076100089018093880180911B0190E0982F882731
:1076200060911A01862B90938B0180938A0150936D
:1076300018014093190130931A0120931B018CE02B
:107640008093000184E980930101109202018AE392
:1076500080930301E0E0F1E011BC808180BD21BC9A
:10766000818180BD31BC828180BD93E091BD8381E9
:1076700080BD8A818E0F81BD24EA2FBB32EA3FBBD9
:107680003496E03841E0F40739F79BC0843709F0BD
:1076900086C0A1D0082F10E0102F00279CD0080F23
:1076A000111D99D0F82EA8D055E46801F5121BC021
:1076B000EA80FB808FEFE81AF80A8FEF8E0D81BD0C
:1076C0008F2D992782BD2FBA0000000080B57CD095
:1076D00091E0C91AD10871F7EA81FB81E00FF11F2F
:1076E000FB83EA836EC0EA80FB80E114F10429F495
:1076F000809184019091850142C0F1E0EF16F10480
:1077000029F4809184019091850111C022E0E21654
:10771000F10429F4809186019091870130C033E013
:10772000E316F10431F48091860190918701892F4D
:1077300026C048E1E416F10429F480918801909173
:1077400089011DC059E1E516F10429F480918801F1
:1077500090918901ECCF8AE1E816F10429F4809137
:107760008A0190918B010BC09BE1E916F10429F489
:1077700080918A0190918B01DACFF7018491FFEF1C
:10778000EF1AFF0A21D021E0C21AD10809F0ADCFCB
:107790004A815B81400F511F5B834A8312C085374A
:1077A00039F42AD08EE110D085E90ED08FE083CE57
:1077B000813531F488E1809360008CE08093600033
:1077C0001BD080E101D06ACE9091C00095FFFCCF24
:1077D0008093C60008958091C00087FFFCCF809100
:1077E000C00084FD01C0A8958091C60008959AE26A
:1077F0009A95F1F708950895EEDF803239F088E127
:10780000809360008DE080936000FFCF84E1DCCF47
:10781000CF93C82FE0DFC150E9F7CF91EDCFE0E67D
:10782000F0E098E1908380830895282EE0E6F0E070
:0C78300088E180831082ECE0FF270994BF
:0277FE00000584
:040000030000740085
:00000001FF

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c avrisp -P COM12 -p lgt8f328p -U .\optiboot_lgt8f328p_gcc540.hex

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)
avrdude: Note: flash memory has been specified, an erase cycle will be performed.
         To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file .\optiboot_lgt8f328p_gcc540.hex for flash
         with 1088 bytes in 2 sections within [0, 0x783b]
         using 10 pages and 192 pad bytes
avrdude: writing 1088 bytes flash ...

Writing | ################################################## | 100% 0.38 s

avrdude: 1088 bytes of flash written
avrdude: verifying flash memory against .\optiboot_lgt8f328p_gcc540.hex

Reading | ################################################## | 100% 0.06 s

avrdude: 1088 bytes of flash verified

avrdude done.  Thank you.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c arduino -P COM19 -b 57600 -p lgt8f328p -D -U .\Blink.ino.lgt8fx8p.hex

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)
avrdude: reading input file .\Blink.ino.lgt8fx8p.hex for flash
         with 1052 bytes in 1 section within [0, 0x41b]
         using 9 pages and 100 pad bytes
avrdude: writing 1052 bytes flash ...

Writing | ################################################## | 100% 0.40 s

avrdude: 1052 bytes of flash written
avrdude: verifying flash memory against .\Blink.ino.lgt8fx8p.hex

Reading | ################################################## | 100% 0.28 s

avrdude: 1052 bytes of flash verified

avrdude done.  Thank you.

[mcuee]

Here are the major changes by the vendor from an older version of optiboot (v5.0). There are also quite some changes if you compare the source codes.
https://code.google.com/archive/p/optiboot/downloads
https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/optiboot/optiboot-v5.0.zip

1. the header file is provided by the vendor here.
   https://github.com/LGTMCU/Larduino_HSP/blob/master/hardware/LGT/avr/bootloaders/lgt8fx8p/lgtx8p.h

2. initialization sequences
   https://github.com/LGTMCU/Larduino_HSP/blob/master/hardware/LGT/avr/bootloaders/lgt8fx8p/optiboot.c#L458-L468

  // WDT clock by 32KHz IRC
  PMCR = 0x80;
  PMCR = 0x93;

  // system clock: 16MHz system clock
  CLKPR = 0x80;
  CLKPR = 0x01;

  // enable 1KB E2PROM (for LGT8F328P)
  ECCR = 0x80;
  ECCR = 0x4C;

3. Makefile changes here.
   https://github.com/LGTMCU/Larduino_HSP/blob/master/hardware/LGT/avr/bootloaders/lgt8fx8p/Makefile#L336-L354

# LGT8F328P
#
lgt8f328p: EXT_OSC ?= 0
lgt8f328p: TARGET = lgt8f328p
lgt8f328p: MCU_TARGET = atmega328p
lgt8f328p: CFLAGS += $(COMMON_OPTIONS)
#lgt8f328p: CFLAGS += $(COMMON_OPTIONS) '-DSOFT_UART'
lgt8f328p: CFLAGS += '-DVIRTUAL_BOOT_PARTITION'
lgt8f328p: AVR_FREQ ?= 16000000L 
lgt8f328p: LDSECTIONS = -Wl,--section-start=.bootv=0x0
lgt8f328p: LDSECTIONS += -Wl,--section-start=.text=0x7400 -Wl,--section-start=.version=0x77fe
lgt8f328p: $(PROGRAM)_lgt8f328p.elf
lgt8f328p: $(PROGRAM)_lgt8f328p.hex
lgt8f328p: $(PROGRAM)_lgt8f328p.lst

lgt8f328p_isp: lgt8f328p
lgt8f328p_isp: TARGET = lgt8f328p
lgt8f328p_isp: MCU_TARGET = atmega323p
lgt8f328p_isp: isp

4. Watchdog related changes.

5. GUID

6. EEPROM related changes

[mcuee]

BTW, even though 2KB EEPROM are reserved, the bootloader does not support EEPROM read/write.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c urclock -P COM19 -b 57600 -p lgt8f328p
 -U .\Blink.ino.lgt8fx8p.hex -xbootsize=3072

avrdude: AVR device initialized and ready to accept instructions
avrdude: device signature = 0x1e950f (probably lgt8f328p)
avrdude: Note: flash memory has been specified, an erase cycle will be performed.
         To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file .\Blink.ino.lgt8fx8p.hex for flash
         with 1052 bytes in 1 section within [0, 0x41b]
         using 9 pages and 100 pad bytes
avrdude: preparing flash input for device bootloader
avrdude: writing 1052 bytes flash ...

Writing | ################################################## | 100% 0.37 s

avrdude: 1052 bytes of flash written
avrdude: verifying flash memory against .\Blink.ino.lgt8fx8p.hex

Reading | ################################################## | 100% 0.29 s

avrdude: 1052 bytes of flash verified

avrdude done.  Thank you.

PS C:\work\avr\avrdude_test\avrdude_bin> .\avrdude -c urclock -P COM19 -b 57600 -p lgt8f328p -qqt
avrdude> dump eeprom 0 0x10
avrdude error: bootloader might not have paged EEPROM read; try -xeepromrw if it has
avrdude error: bootloader might not have EEPROM access; try -xeepromrw if it has
avrdude error: unable to read eeprom page at addr 0x0000
avrdude error: (dump) error reading eeprom address 0x00000 of part LGT8F328P
               read operation not supported on memory type eeprom
avrdude> dump flash 0 0x10
0000  0c 94 66 00 0c 94 78 00  0c 94 78 00 0c 94 78 00  | .f. .x. .x. .x.|

avrdude> dump flash 0x7400 0x10
7400  11 24 8f ef 98 e0 9e bf  8d bf 94 b7 14 be 89 2f  |.$............./|

avrdude> dump flash 0x73c0 0x40
73c0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
73d0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff 42 6c  |..............Bl|
73e0  69 6e 6b 2e 69 6e 6f 2e  6c 67 74 38 66 78 38 70  |ink.ino.lgt8fx8p|
73f0  2e 68 65 78 00 e6 07 06  04 14 38 1c 04 c2 6f 17  |.hex......8...o.|

avrdude> quit

[L10N37]

https://github.com/L10N37/tehUberChip_Another_PSX_Modchip/tree/main/UberNee/FlashingGuide

Try my flashing guide here for this project.