• Still problem with SPI Interrupt
    Using Atmel AT89C51CC03, and having very strange problem with SPI. My interrupt routine is like this: void SPIISR(void) interrupt 10 { if (SPSCR == 0x88) {P1_0 = ~P1_0;} tmpchar = SPDAT; SPDAT...
  • SPI interrupt at wrong address
    I am using Atmel AT89C51CC03, and it is configured so in Keil too. The data sheet lists the SPI interrupt vector as 0x0053h, and I do define my interrupt as interrupt #10. However, the map file show...
  • AT89S8252 Interrupt based SPI Communication
    I am trying to send bytes from UART & SPI by involving ISR. Since there is no SPI simulation available in KEIL. For debuging purpose i toggle a pin after sening one byte from SPI port & then from UART...
  • spi
    hello all, can you pls tell me maximum how many devices can be connected to controller using SPI? like in i2c maximum devices are 128. so pls tell me the number and how? thank you regards
  • spi
    dear all, i m interfacing 7366 with c8051f120. according to datasheet of 7366 its clock is 5Mhz (100nSec and 100nSec of SCK high and low pulse) pls tell me which lines of among 4 pins i.e mosi...