computer projects

TETSU_JP SURPARA BLOG


PIC (microchip peripheral interface controller) i have built various projects for the baseline PICs, such as 16F54. there are prototypes under construction, using extended range PIC with upto 40MHz!
however, for instance the 16F54 is small (512 words), and inexpensive (70 cents). i like this device very much. here an older video of a LCD clock using a (too small) 1K PIC.

it is using a thread scheme for the update tasks!
they are not just always updated completely, just as needed.
it is a clock...

there is a 2K prototype already planned, using external RTC, and large EEPROM (2K) for real japanese information including the correct number spelling (not english 1st, 2nd, 3rd). for instance, i ahve worked out the EEPROM with this data already. the RTC module is using serial bus interface.
68000 - motorola CPU, 32bit i have started to build a small system using SRAM, and right now, i am working at the PIC control program for the RAM board. it can load data via serial port. also it is going to be tested on 8x8 LED matrix.
8086 - introduced 1978 by intel, 16bit this one only provides 1MByte address space- more than enough for game titles! even if it is not much known, it was used in casino's. and for numerous arcade coin-up cabinets. nowadays, the original 8086 is not seen as very powerful anymore- but it is available, for $2, and relatively easy to program! for instance, the MICROSOFT MASM could be used.