Тема: Самодельная охлаждаемая ПЗС камера от grim (Прочитано 502272 раз)

pat30

Цитата: grim від 24 Вересня 2016, 07:56:42

Probably a problem in the defective chip DD2 AT93C46. in this case, it appears "Error reading device".

The AT93C46-10S was obsolete in mouser so I put a CAT93C46VI-GT3
this may be it ?
DD3 is welded it can not come to this ? because DSR is the pin 22 of FT2232.

grim

Look at your Board, the wires should be as shown. The pin 22 is not connected with DD2.

pat30

it's good, I had two pin that were poorly welded

, by against the program does not show me the AT328

grim

look at device manager for USB Serial Converter A and B

pat30 · this is good, this is version 2.8.24

this is good, this is version 2.8.24

grim

The first byte of the signature 0x1E is true.
Second - 0x16 is false.
Third - 0x95 is true, but must be second.

You need to look carefully nets RES, CLK, MISO and MOSI.

pat30

welding and way tested , it is OK

pat30

I think I found I was wrong to order the AT328.
I ordered ATMEGA328PB-AN and pin are slightly different, pin 6 and 3.

grim

Цитата: pat30 від 24 Вересня 2016, 11:27:32

I think I found I was wrong to order the AT328.
I ordered ATMEGA328PB-AN and pin are slightly different, pin 6 and 3.

Yes, maybe you have a different chip. Code 16 is correct for him. Try another programmer who ignores this byte. And do not forget to set fuses..

pat30

thank you, with program 2 is displayed, put the fuses

sorry I'm not on the way forward, I have to replace per those written left

grim

Yes, only the correct FUSE LOW.

pat30

Цитата: grim від 24 Вересня 2016, 11:56:16

Yes, only the correct FUSE LOW.

LOW FUSE is correct ?? i don't understand

i don't know what to write:

just HIGHT FUSE is identical to left and right

grim

Install fuse low to 11100010
fuse high don't change
fuse ex don't change

pat30

Цитата: grim від 24 Вересня 2016, 12:10:36

Install fuse low to 11100010
fuse high don't change
fuse ex don't change

fine thank you, i'm sorry i don't specialist for this thing.

pat30

A question for ATmega specialist why DHT 22?
A 100k thermistor as the 3D printer is much smaller than the DS18B20, is it possible to replace one with the other or not?

M_M

Pat30, it's possible in general, but with poor precision and will require additionаl calibration process.

pat30

Цитата: M_M від 28 Вересня 2016, 22:22:40

Pat30, it's possible in general, but with poor precision and will require additionаl calibration process.

I understand, I was wrong is 100K.
For those who put the sensor in the box there is plenty of room but for me who wants the sensor dehord I lack of space but if it's too complicated ....

M_M

grim, есть свободная нога АЦП, чтоб на нее термистор вместо DS18B20 прицепить? Ну и соответственно будет нужна модификация кода...

grim

Цитата: M_M від 28 Вересня 2016, 22:52:12

grim, есть свободная нога АЦП, чтоб на нее термистор вместо DS18B20 прицепить? Ну и соответственно будет нужна модификация кода...

Смысла особого не вижу. DS18B20 уже есть классика - выдает цифровой код. Диаметр его 4 мм, что достаточно мало. И калиброван. А у термистора нужно еще выправлять нелинейность и калибровать. Да еще АЦП-шные ноги процессора заняты.
Короче, геморрой.

M_M

Это понятно. Вопрос касается именно миниатюаризации, видимо 4 мм слишком много. Но если все АЦП-шные ноги заняты, то вопрос закрыт. Спасибо.

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Автор Тема: Самодельная охлаждаемая ПЗС камера от grim (Прочитано 502272 раз)