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我现在用是的MSP430+CC2500。
就是利尔达msp430FG4619自带的wireless那个程序。
程序是由开关控制灯亮/灭。每次只发送了buffer[2]一个字节；
我将发送缓冲改为
char txBuffer[] = {0x08,0x01,0x02,0x03,0x04,0x05,0x06,0x07};
char rxBuffer[];
查看寄存器时，U1TXBUF是没有问题的，发送的U1TXBUF分别是0x08,0x01,0x02,0x03,0x04,0x05,0x06,0x07
但是在查看U1RXBUF时，就出现问题了，分别是0x02,0x03,0x04,0x05,0x06,0x07，oxff，0x18。最后接收的两个数还经常变。按理说接受的U1RXBUF中的数应该是0x02,0x03,0x04,0x05,0x06,0x07，可是现在接收是不对的。
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void TI_CC_SPIReadBurstReg(char addr, char *buffer, char count)
{
unsigned int i;
TI_CC_CSn_PxOUT &= ~TI_CC_CSn_PIN; // /CS enable
while (TI_CC_SPI_USART0_PxIN&TI_CC_SPI_USART0_SOMI);// Wait for CCxxxx ready
IFG1 &= ~URXIFG0; // Clear flag
U0TXBUF = (addr | TI_CCxxx0_READ_BURST); // Send address
while (!(IFG1&UTXIFG0)); // Wait for TXBUF ready
U0TXBUF = 0; // Dummy write to read 1st data byte
// Addr byte is now being TX'ed, with dummy byte to follow immediately after
while (!(IFG1&URXIFG0)); // Wait for end of addr byte TX
IFG1 &= ~URXIFG0; // Clear flag
while (!(IFG1&URXIFG0)); // Wait for end of 1st data byte TX
// First data byte now in RXBUF
for (i = 0; i < (count-1); i++)
{
U0TXBUF = 0; //Initiate next data RX, meanwhile..
buffer = U0RXBUF; // Store data from last data RX
while (!(IFG1&URXIFG0)); // Wait for end of data RX
}
buffer[count-1] = U0RXBUF; // Store last RX byte in buffer
TI_CC_CSn_PxOUT |= TI_CC_CSn_PIN; // /CS disable
}
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char RFReceivePacket(char *rxBuffer, char *length)
{
char status[2];
char pktLen;
if ((TI_CC_SPIReadStatus(TI_CCxxx0_RXBYTES) & TI_CCxxx0_NUM_RXBYTES))
{
pktLen = TI_CC_SPIReadReg(TI_CCxxx0_RXFIFO);
TI_CC_SPIReadBurstReg(TI_CCxxx0_RXFIFO, rxBuffer, pktLen); // Pull data
*length = pktLen; // Return the actual size
TI_CC_SPIReadBurstReg(TI_CCxxx0_RXFIFO, status, 2);
return (char)(status[TI_CCxxx0_LQI_RX]&TI_CCxxx0_CRC_OK);
}
else
return 0; // Error
} |
阿莫论坛20周年了！感谢大家的支持与爱护！！
知道什么是神吗？其实神本来也是人，只不过神做了人做不到的事情 所以才成了神。 （头文字D, 杜汶泽）
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发表于 2009-12-8 11:14:47
楼主
