• how to program when i need two 82c55
    When I use one 82c55. I can define as follow: #define D8255A XBYTE[0xeffc] #define D8255B XBYTE[0xeffd] #define D8255C XBYTE[0xeffe] #define C8255 XBYTE[0xefff] Now I need to use two chips of 82c55...
  • Programmer for Philips 8031
    I have a few PHILIPS 8031 chips in 40 pin package. They cannot be programmed with Flashmagic most probably because the bootloader is corrupted. I looked at a few Universal Programmers on ebay etc. but...
  • 8031 POST (power on self test)
    I'm not having much success in finding an 8031 POST (power on self test) online. I'd be especially interested in tests from a microprocessor manufacturer. For example, are there published tests to...
  • Philips 8031 chip keeps reseting
    My company is using Philips 8031 chip. The new batch of chips we received, every one of them keeps reseting itself when when it come accross the PRINTF statement !!! The c-code works fine with the...
  • 8031/8032: more interrupts possible?
    Hi, I'm doing a project with a 80C32 processor. I'm lacking, however, interrupts. Is there a (tricky) way to have more than the standard provided interrupts at your disposal? --Geert