GitHub - WellsWangRAMTESTER Tester For 4116416441256 Or Compatible

About 4100 Ram

Dram tester for 4116 and 4164256. Contribute to zeus074dramtester development by creating an account on GitHub. 1x Arduino Nano. 1x Zif 16 pin or 16 pin socket 1x 7760 7660s 1x tactile switch 6x6. If the setting is on 4164-256 it is possible to select the type of memory from 4164,41256,4532-L,4532-H by briefly pressing the

This little tester can be used with 4164 and 41256 DRAM memory chips. 4164 DRAM was used in several popular home computers throughout the 1970s and 1980s, including the Apple series, Commodore

The 47ohm resistors are optional, I used them as a test and even with these you can correctly test the memory and in case of short pins on the dram you avoid burning the Arduino pins. The power supply must be about 14V to have a correct 12V, otherwise it is possible to use a dc-dc to bring the Arduino 5V to 12V and power the ram in order to

Maker Jan Beta has put together a simple tester for dynamic RAM DRAM chips, based around an Arduino Uno or compatible microcontroller and quotleftover components I found in my parts binquot using a design released under a quotdo with them what you wantquot license. quotResults are 100 percent reliable only if the test FAILS - you can throw away the

Why this tester? Most Arduino-based DRAM testers need up to 2 mins or even more for a single 41256 RAM and check only basic functions. This project completes a full memory, address, data-line and retention time test in 15 s or less. or even 2.5sec faster without the Display.

DRAMARDUINO dynamic ram tester. Thread starter syzygy Start date Jun 4, 2024 syzygy Veteran Member. Joined Apr 22, 2023 Messages 838 Location North East USA It is a fairly simple circuit and is meant to be utilized by an Arduino UNO and others to test 4164 and 41256 drams. The schematic and the revised software is in the first post

Simple project to test the dram of C64C16,Spectrum and other 8bit computers 4164,4116,4532.

98 votes, 15 comments. 635K subscribers in the arduino community. An unofficial place for all things Arduino! so the regular memory accesses from the memory test take care of the refresh. The tricky part is in the second half of the test when it switches from incrementing addresses to decrementing addresses, so it takes twice as long to go

8. Connect your Arduino Uno to your computer via USB. 9. Launch the Arduino IDE software. Make sure quotArduino Unoquot and your appropriate COM port are both selected under the Tools menu. 10. Select File gt Open and then select the 4116.ino file that you downloaded in step 7. 11. Select quotSketchquot gt quotUploadquot to load the file to your Arduino. Using the

A hardware tester for old 4116, 4164 amp 41256 DRAM modules. This is just a simple PCB I designed to unify the open-sourced, arduino-based 4116 and 416441256 DRAM testers into one piece of hardware. It is not too different to the 2 arduino projects, so their code might work with this PCB. I started writing some code based on their examples, but I haven't been able to confirm it as functional