void main(void)
{
U8 ItStatus1,ItStatus2;
U16 delay;
U8 length,temp8;
U8 payload[10];
//Ini
tialize the MCU:
// - set IO ports for the Software Development board
// - set MCU clock source
// - initialize the SPI port
// - turn ofF LEDs
MCU_Init();
/* ======================================================== *
* Initialize the Si443x ISM chip *
* ======================================================== */
//Turn on the radio by pulling down the PWRDN pin
SDN = 0;
//Wait at least 15ms befory any initialization SPI commands are sent to the radio
// (wait for the power on reset sequence)
for (temp8=0;temp8<15;temp8++)
{
for(delay=0;delay<10000;delay++);
}
//read interrupt status registers to clear the interrupt flags and release NIRQ pin
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
//SW reset
SpiWriteRegister(0x07, 0x80); //write 0x80 to the Operating & Function Control1 register
//wait for POR interrupt from the radio (while the nIRQ pin is high)
while ( NIRQ == 1);
}
攫取的一端程序 NIRQ总为1,根本就进入不了中断
这程序为什么进入不了中断了? 我用的是的C8051F931的硬件接口三线模式其中SCK 为 P1.0 SDI P1.1 SDO P2.2 NSELP1.4
想不通啊 哪位大哥做过的?赐教一下感激不尽!
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