• P89C669
    Does (or when will) Keil support the P89C669 ? Alternately if the MX is supported (long address - no bank switching) can that be used with a 'homemade' sfr definition file for the 669? Erik
  • P89C669 configurations
    I am using P89C669 controller. What are the configuration i have to set in uvision to use off-chip xdata of 64KB and to disable on chip xram?
  • P89C669 & I2C
    P89C669 user manual page 71 indicate I2CON (91h) is bit addressable.! How can declare to compiler? My custom header file for P89C669 ; sfr I2CON = 0x91; sbit I2EN = I2CON^6; sbit STA = I2CON...
  • p89c669 UART1, baudrate 4800
    Hi I need to set baudrate for UART1 for p89c669. I did it like..... void Init_Uart1() { S1STAT = 0x20 ; S1CON = 0x50 ; REN_1 = 1 ; BRGCON = 0X00 ; BRGR1 = 0x07 ; BRGR0 = 0x70 ; BRGCON = 0X01 ;...
  • problem with p89c669 serial interrupt
    iam using p89c669 for serial communication the problem is no transmission thats TI_0 is not getting set when i mov something to s0buf,iam using uart 0 void main() { i=0; PCON = 0X10; S0CON = 0X50;...