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I have bought a SZBK07 buck regulator to use as a constant current power supply for electroplating. Does anyone know whether I can just use a transformer with a bridge rectifier as the input for this converter, or whether the ripple will prevent it working properly? In which case presumably I...
Brian,
That's very kind of you - thank you. Of course I must have had the right cable for the LV48, but I've turned out my box of cables, and found several 25-way D cables but have not yet been able to find one that works.
Thanks - Rowan
Parallel Cable Wiring for IceTech Micromaster LV48
Can anyone tell me how the parallel cable from the PC to the Micromaster should be wired? It seems to need a male plug on both ends. Should it be a 1-to-1 wired cable, or a LapLink cable, or what? I can't get the thing to work... (it may be my...
>I was about to scrap it to make space but you can have the whole thing, including PSU if you pay the postage.
Great offer. What would be the postage? I will pay 2nd class postage. Please tell me how to pay. You can send private e-mail to rowan <at> sylvesterbradley <dot> org
Thanks - Rowan
I have an ICEtech Micromaster LV48 programmer. I haven't used it for a number of years. Somehow I have lost the power supply for it. Does anyone know what voltage and current the power supply needs to be? And does anyone know what the make and type of the DC power connector are? It is two pin...
Thanks for this suggestion. I have looked at this device, and yes, I think one of these possibly will do what I need, and avoid the need for an FPGA (slight disappointment at not being able to get to grips with FPGAs, but it will make my current project much faster). I had looked for dual port...
I have an existing system based on an 8051 family microprocessor (actually an 80C320). I want to add some dual port memory which can be accessed by the existing 80C320 processor, and also by a new processor (probably an ARM) without interrupting or interfering with each other. I figure the best...
I need a board which provides external access to a memory or memory mappped peripheral bus. I need this to interface to the rest of my system, which has a whole range of IO boards already designed, which use a 16 address plus 8 data bit bus (originally designed for 8051). This is the specific...
I'm looking for a small microcomputer board containing a modern microprocessor (e.g. ARM or PIC32) with an accessible external memory bus (i.e. something with at least 16 address pins and 8 data pins that will allow me to interface to memory mapped peripherals). On the board I need:
at least 2...
I have found that the TI Stellaris M3 processors seem to have an External Peripheral Interface that sounds as if it does exactly what I want with some nice timing features like a FIFO and non blocking reads. But these parts are marked Not Recommended for New Designs, and none of the newer M4...
I work on a system based on the 8051-family 80C320 processor. It has a 16 address bit 8 data bit bus, plus read/write etc. The IO is all memory mapped. I now want to replace or augment the processor with a new modern processor (an ARM or similar). I still need to use the existing memory mapped...
I have a system using an 80C320 microprocessor running at 12MHz clock. It uses a lot of memory mapped IO (8-bit data, 16-bit address). I want to implement automatic testing for this system, and I'm thinking of adding a second processor (probably an ARM of some sort) which can read and write to...
Some things puzzle me about the serial ports on 8051 family devices (specifically I'm using the Dallas 80C320).
1. When transmitting, as I understand it the TI bit sets at the beginning of the stop bit. What happens if as soon as TI sets, I immediately send another byte? Does this chop off the...
Is anyone successfully using Jens Altmann's JSIM-51 simulator for 8051 family processors? Or know where there's an active user community? I've downloaded it and it runs, but there are some questions I need to ask.
I chose this simulator because it seems to be the only free or low cost one that...
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