• Ds80c400
    I'm writing code using keil uvision2 for the ds80c400(using the dstintm400 and dstinis400 boards)in order to process a reading from a simple sensor and then to transmit this data over the ethernet using...
  • ppp for ds80c400
    does anyone know of a ppp stack for ds80c400?
  • DS80C400 B1 and Keil C51
    The DS80C400 revision B1 chip has a bug in the DIV AB instruction which can manifest if ACC is loaded after B prior to the DIV. The http://www.keil.com/support/docs/1977.htm page suggests that C51...
  • overwriting ds80c400 interrupt vectors
    I have been trying to write c code to overwrite the interrupt vectors on the DS80c400 ( to do the same as the following asm code) EXTRN CODE (com_isr) MOV DPTR, #000023H MOV A, #02H; MOVX @DPTR...
  • User Code Signature for DS80C400
    I have a DS80C400 with external Flash ROM and external SRAM. I have succesfully generated a HEX file with the Keil compiler and can run this when the nEA pin is low. (Disables access to built in ROM...