• Serial interrupts on Mx2 chip
    Hi This question is about serial interrupts on the 8051 based extended memory chip (P87C51Mx2). The transmit interrupt TI_0 is supposed to be set when a character is written to S0BUF. This is not...
  • Serial interrupts on Mx2 chip
    Hi This question is about serial interrupts on the 8051 based extended memory chip (P87C51Mx2). The transmit interrupt TI_0 is supposed to be set when a character is written to S0BUF. This is not...
  • uVision Debugger problem with MX2?
    I'm developing for the Philip 8xC51MB2 using the latest Keil tools but when I use the uVision debugger (simulator) I get the following problem:- In "Extended Call Return Mode" ECRM = 1, the simulator...
  • Use of "Off-chip XData Memory"?
    Hi, I'm running a small testapp to see if my 80c32 uP is running fine. Therefore, I toggle P1_0 and next to this, I'm writing a value to a var defined in external RAM. The RAM starts at address...
  • how to locate a function in the off-chip rom?
    1.how to locate a function which is programed with c51 in the off-chip rom according to the hardware address assign 2. after compiling, and the hex file is obtained, then how to program this file into...