Using non-Atmel EEPROM with BasicX 35

Started by flyerx_2000 in BasicX15 years ago 4 replies

Hello, I wanted to use an Atmel 25256 EEPROM with a BasicX 35. Unfortunately according to Mouser this chip has been discontinued (both...

Hello, I wanted to use an Atmel 25256 EEPROM with a BasicX 35. Unfortunately according to Mouser this chip has been discontinued (both voltage variants). They recommended the ST M95256. It is SPI with 32K and seems pin compatible. Has anyone here used a non-Atmel EEPROM? I would suspect they are fairly standard and should be interchangeable but I wan


AD7490 interface

Started by Patrick in BasicX12 years ago 7 replies

Has anyone worked with AD7490, 16-channel 12bit AtoD converter and BasicX? It's got SPI interface so it must be possible to use with BasicX,...

Has anyone worked with AD7490, 16-channel 12bit AtoD converter and BasicX? It's got SPI interface so it must be possible to use with BasicX, correct? The whole reason why this even came up is my need for more than 8 channel A/D that are built-in on BasicX. I need a total of 16 channels and in the previous project I ended up using 2 BasicXs and that wasn't the best solution. Ideally havin...


FRAM Write Protect

Started by Tom Becker in BasicX14 years ago

FRAM users, beware. It is possible to lock yourself out of the device, requiring hardware intervention to recover. Somehow, I assume during...

FRAM users, beware. It is possible to lock yourself out of the device, requiring hardware intervention to recover. Somehow, I assume during an SPI crash, bits BP0 and BP1 in the Write Status Register of an FM25640 were set. I never intended to use write protection so I gave it no thought and installed the part with the /WP pin grounded, understanding that it made no difference. And i


MAX 6675

Started by Mikael Karstikko in BasicX15 years ago 5 replies

Hello ! Has anyone used the MAX 6675 K-Type thermocouple A/D chip with BX-24 ?? Is this hook-up correct ? no need to invert the CS...

Hello ! Has anyone used the MAX 6675 K-Type thermocouple A/D chip with BX-24 ?? Is this hook-up correct ? no need to invert the CS line ? MAX6675 BX-24 SO ---------- MISO (hole 6) SCK --------- SCK (hole 7) -CS- -------- CS (hole 4) If anyone has knowledge of this SPI bus , please help me with the code ! Sample code would be


LCDX backlight flicker during I/O

Started by jstjohnz in BasicX15 years ago 2 replies

Hello, This is my first experience with BasicX. I am using the LCDX, essentially a BasicX-35 coupled to a 4x20 LCD. This unit has a 4x4 ...

Hello, This is my first experience with BasicX. I am using the LCDX, essentially a BasicX-35 coupled to a 4x20 LCD. This unit has a 4x4 keypad interface, 8 analog inputs, and 8 built-in relay drivers, driven from a chip that interfaces to the BasicX with SPI. Whenever I do a "relayout" command to control a relay bit I get a momentary


Re: ISD4004 please help me !

Started by eser...@ in BasicX16 years ago 4 replies

Zivkovic, ISD "sound" chips present many technical challenges. They are tough to work with, but rewarding when you get them to...

Zivkovic, ISD "sound" chips present many technical challenges. They are tough to work with, but rewarding when you get them to work. The ISD4004 series are intended to interface to a micro-controller via "SPI" Serial Peripheral Interface protocol (by Motorola). National's pr


SPIcmd and how BX24 fetch program instructions

Started by Olle Bengtsson in BasicX11 years ago

Hi I have not been able to figure any good explanation of how BX can avoid getting the program instructions cluttred when the SPI bus is used....

Hi I have not been able to figure any good explanation of how BX can avoid getting the program instructions cluttred when the SPI bus is used. BX24 is fetching these intructions on the same bus to the EEPROM as is used to communicate with other devices with SPIcmd. I guess that when BX need to fetch a program instruction it use another channel than what is possible to use for external SP...


Encoder (quadrature) IC w/SPIi intreface

Started by Stephane Richard in BasicX13 years ago 1 reply

Hi Does any body knows about a small encoder (quadrature) to spi interface ? to connect directly between the encoder and the BasicX ? I'm...

Hi Does any body knows about a small encoder (quadrature) to spi interface ? to connect directly between the encoder and the BasicX ? I'm trying to make a small servo system using the BasicX as my "servo" but I would like to find a IC to use as the encoder monitor to "unload" the BasicX get an outside IC to track the position in real-time. Independent from the BasicX. Any Ideas ? ...


suggest connectors for LCDX?

Started by donnpenny in BasicX9 years ago 1 reply

I recently purchased the LCDX with Development Kit. Would someone suggest a 4 pin connector with attached wires for the Analog 6, 7, 8 Inputs...

I recently purchased the LCDX with Development Kit. Would someone suggest a 4 pin connector with attached wires for the Analog 6, 7, 8 Inputs and Gnd? Also a 16 pin connector with attached wires for the Keypad Inputs and SPI Interface? Thank you. ------------------------------------


Micromega ÁM-FPU V3 on a BX-24

Started by Tom Becker in BasicX13 years ago 6 replies

I've uploaded a Basic-X project that provides easy function code timing on the ?M-FPU V3 when it is connected to a BX-24 via SPI. An image of...

I've uploaded a Basic-X project that provides easy function code timing on the ?M-FPU V3 when it is connected to a BX-24 via SPI. An image of the project breadboard is in the group Photos section, too. The BX-24 code measures an empty function to determine timing overhead, a nominally one-millisecond delay function to establish a time scale, and the unknown code, repeatedly; the unknown co...


Ramtron FRAM?

Started by Tom Becker in BasicX15 years ago 11 replies

Has anyone used Ramtrom FM25640 SPI FRAM? http://www.ramtron.c om/doc/Products/Products_detail.asp?ID=9&FamID=1 8KBytes, 5MHz...

Has anyone used Ramtrom FM25640 SPI FRAM? http://www.ramtron.c om/doc/Products/Products_detail.asp?ID=9&FamID=1 8KBytes, 5MHz (faster than the BX-24), ~$3.50. I see several mentions in the achive a


Re: Multi-Master SPI Arbitration

Started by Tom Becker in BasicX13 years ago

Some food for...

Some food for thought: http://www.idt.com/products/files/4579345/71342_AN_13145.pdf?CFID=6561006&CFTOKEN=72732795 http://chinese-school.netfirms.com/forums/multiprocessor-semaphore-vt103.html http://www.us.design-reuse.com/articles/article5411.html http://www.atmel.com/dyn/resources/prod_documents/doc4146.pdf http://direct.xilinx.com/bvdocs/appnotes/xapp648.pdf http://www.embedded.com/stor...


Midi input problem

Started by Justin in BasicX15 years ago 4 replies

Hey, I'm making a synth with a bx-35 and am using a MAX3110 as the MIDI uart. And am using this schematic: ...

Hey, I'm making a synth with a bx-35 and am using a MAX3110 as the MIDI uart. And am using this schematic: http://devices.sapp.org/m icro/stamp2sx/max3110/bsmax3110big.gif as a reference (but with the Basic Stamp replaced by the BX35). I've got all the SPI communications working fine, and MIDI