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**linker3000** · 08-12-2016, 12:57 PM

Re: ESR meter upgrades

Originally posted by vinceroger69 View Post

is this the one
http://www.ebay.co.uk/itm/GM328-Tran...1%26rkt%3D1%26
which firmware version have you found that works? did you re calibrate the tester after installing the firmware?

I tried calibrating both of these with the results as listed:

GM328_EZM_v1.12k_r541: Board is hard to turn on. Seems to perform most tests OK but often incorrectly identifies small signal transistors as JFETs

mega328_GM328 from current trunk at the same repo: Board turns on, but ditto with the small signal transistors.

**linker3000** · 08-12-2016, 12:57 PM

Re: ESR meter upgrades

Originally posted by stj View Post

can you copy & paste the screen output when you ran avrdude.

the pot is surplus btw, it's just rfom when they sold the lower pcb with a character display.
it's the manual contrast setting.

So good I did it twice:

Code:

C:\temp\mk328>avrdude -c USBasp -p m328p -U flash:w:TransistorTester.hex \-U eeprom:w:TransistorTester.eep \-U lfuse:w:0xf7:m \-U hfuse:w:0xd9:m \-U efuse:w:0xfc:m

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.04s

avrdude: Device signature = 0x1e950f (probably m328p)
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 "TransistorTester.hex"
avrdude: input file TransistorTester.hex auto detected as Intel Hex
avrdude: writing flash (30056 bytes):

Writing | ################################################## | 100% 15.75s

avrdude: 30056 bytes of flash written
avrdude: verifying flash memory against TransistorTester.hex:
avrdude: load data flash data from input file TransistorTester.hex:
avrdude: input file TransistorTester.hex auto detected as Intel Hex
avrdude: input file TransistorTester.hex contains 30056 bytes
avrdude: reading on-chip flash data:

Reading | ################################################## | 100% 10.46s

avrdude: verifying ...
avrdude: 30056 bytes of flash verified

avrdude: safemode: Fuses OK (E:FD, H:DE, L:FF)

avrdude done. Thank you.


C:\temp\mk328>avrdude -c USBasp -p m328p -U flash:w:TransistorTester.hex \-U eeprom:w:TransistorTester.eep \-U lfuse:w:0xf7:m \-U hfuse:w:0xd9:m \-U efuse:w:0xfc:m

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.05s

avrdude: Device signature = 0x1e950f (probably m328p)
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 "TransistorTester.hex"
avrdude: input file TransistorTester.hex auto detected as Intel Hex
avrdude: writing flash (30056 bytes):

Writing | ################################################## | 100% 15.59s

avrdude: 30056 bytes of flash written
avrdude: verifying flash memory against TransistorTester.hex:
avrdude: load data flash data from input file TransistorTester.hex:
avrdude: input file TransistorTester.hex auto detected as Intel Hex
avrdude: input file TransistorTester.hex contains 30056 bytes
avrdude: reading on-chip flash data:

Reading | ################################################## | 100% 10.63s

avrdude: verifying ...
avrdude: 30056 bytes of flash verified

avrdude: safemode: Fuses OK (E:FD, H:DE, L:FF)

avrdude done. Thank you.

**vinceroger69** · 08-12-2016, 01:00 PM

Re: ESR meter upgrades

are the fuse settings rite?

**stj** · 08-12-2016, 01:08 PM

Re: ESR meter upgrades

did you actually read all that?

it's not writing the eeprom or fuses.

copy & past in 3 seperate operations.
avrdude -c USBasp -p m328p -U flash:w:TransistorTester.hex

avrdude -c USBasp -p m328p --U eeprom:w:TransistorTester.eep

avrdude -c USBasp -p m328p -U lfuse:w:0xf7:m \-U hfuse:w:0xd9:m \-U efuse:w:0xfc:m

**stj** · 08-12-2016, 01:10 PM

Re: ESR meter upgrades

btw, this looks like another windows10 fuckup.

piece of shit cant even handle long commandline strings!!!

**vinceroger69** · 08-12-2016, 01:13 PM

Re: ESR meter upgrades

Originally posted by stj View Post

btw, this looks like another windows10 fuckup.

piece of shit cant even handle long commandline strings!!!

I tried yesterday on windows 10 and mine failed, when you posted the three seperate commands on a windows 7 laptop the firmware load worked fine.

**stj** · 08-12-2016, 01:15 PM

Re: ESR meter upgrades

maybe i should make a batch-file

**vinceroger69** · 08-12-2016, 01:21 PM

Re: ESR meter upgrades

Originally posted by stj View Post

maybe i should make a batch-file

batch-file? im still learning programming so is this just another method of loading the firmware?

**stj** · 08-12-2016, 01:41 PM

Re: ESR meter upgrades

batch-file
you create a text file, and put command strings in it.
then name it xxxx.bat

you run it like a command and windows does whatever is in it - like a macro

i'll give you an example.
create a text file called "program.bat"

then copy & paste this into it:

avrdude -c USBasp -p m328p -U flash:w:TransistorTester.hex
avrdude -c USBasp -p m328p -U eeprom:w:TransistorTester.eep
avrdude -c USBasp -p m328p -U lfuse:w:0xf7:m
avrdude -c USBasp -p m328p -U hfuse:w:0xd9:m
avrdude -c USBasp -p m328p -U efuse:w:0xfc:m
exit

then if you type "program" or "program.bat" it will run all those commands.

**vinceroger69** · 08-12-2016, 01:48 PM

Re: ESR meter upgrades

thanks for explaning that its easier when shown commands etc too as examples.

**stj** · 08-12-2016, 02:11 PM

Re: ESR meter upgrades

the power of the command-line will never be beaten by a mouse!

**linker3000** · 08-12-2016, 02:15 PM

Re: ESR meter upgrades

Originally posted by stj View Post

did you actually read all that?

it's not writing the eeprom or fuses.

copy & past in 3 seperate operations.
avrdude -c USBasp -p m328p -U flash:w:TransistorTester.hex

avrdude -c USBasp -p m328p --U eeprom:w:TransistorTester.eep

avrdude -c USBasp -p m328p -U lfuse:w:0xf7:m \-U hfuse:w:0xd9:m \-U efuse:w:0xfc:m

Duh! Copied the instruction verbatim from the accompanying text file. Will redo in three steps.

**vinceroger69** · 08-12-2016, 02:30 PM

Re: ESR meter upgrades

This pdf from the eevblog thread is worth a read

**linker3000** · 08-12-2016, 02:46 PM

Re: ESR meter upgrades

Now reflashed and running OK. Calibrated OK, but like the other firmware I tried it has problems with small signal transistors which can either report as JFETs or a pair of diodes. If I revert to the original firmware the transistors check as expected.

Happy to check out any suggestions or stick with the original firmware if there's no desire to look into this.

Thanks either way.

**vinceroger69** · 08-12-2016, 02:55 PM

Re: ESR meter upgrades

can you upload the original firmware file im just wondering if stj can modify it into the new firmware?

**stj** · 08-12-2016, 03:37 PM

Re: ESR meter upgrades

what part numbers are being miss-read?

**linker3000** · 08-13-2016, 02:06 AM

Re: ESR meter upgrades

Originally posted by stj View Post

what part numbers are being miss-read?

Samples from the parts drawer:

Correct

TIP42A
TIP32B
BCY70
2N4036
ZTX651
2N3906
MJ1410

Two diodes

SE9302
BD139
BFY50
BF494
2N3053

N-JFET

BCY65E
BC182L
BC650
2SC546
BC107
ZTX300

**vinceroger69** · 08-13-2016, 03:28 AM

Re: ESR meter upgrades

stj on the eevblog forum someone has just said
Yes, the tester can't correctly identify integrated circuits, including voltage regulators. This is normal.

so some parts it cant test properly?

**linker3000** · 08-13-2016, 04:02 AM

Re: ESR meter upgrades

Just to clarify, all the parts I listed in my previous post are bipolar transistors. The list shows which ones are detected correctly and which are incorrectly identified as either FETs or diode pairs.

**vinceroger69** · 08-13-2016, 04:06 AM

Re: ESR meter upgrades

Originally posted by linker3000 View Post

Just to clarify, all the parts I listed in my previous post are bipolar transistors. The list shows which ones are detected correctly and which are incorrectly identified as either FETs or diode pairs.

so your original firmware tests them all ok and give the proper tests results?

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