BaN (28.08.2011 18:19, просмотров: 144) ответил BaN на Взял на пробу пару трансиверов RFM22B.Настройки модуля: SPI_WRITE(0x06, 0x00); // interrupt all disable
SPI_WRITE(0x07, 01); // to ready mode
SPI_WRITE(0x09, 0x7f); // cap = 12.5pf
SPI_WRITE(0x0a, 0x05); //clk output is 2MHz
SPI_WRITE(0x0C, 0x18); // GPIO Configuration 0.
SPI_WRITE(0x0B, 0x17); // GPIO Configuration 1.
SPI_WRITE(0x0d, 0x00); // GPIO2 for MCLK output
SPI_WRITE(0x0e, 0x00); //GPIO port use default value
SPI_WRITE(0x0f, 0x70); // NO ADC used
SPI_WRITE(0x10, 0x00); //no adc used
SPI_WRITE(0x12, 0x00); // no temperature sensor used
SPI_WRITE(0x13, 0x00); // no temperature sensor used
SPI_WRITE(0x70, 0x00); // no mancheset code, no data whiting, data rate > 30Kbps
SPI_WRITE(0x1c, 0x04); // IF filter bandwidth
SPI_WRITE(0x1d, 0x40); // AFC LOOP
SPI_WRITE(0x1e, 0x08); //AFC timing
SPI_WRITE(0x20, 0x64); //clock recovery
SPI_WRITE(0x21, 0x01); //clock recovery
SPI_WRITE(0x22, 0x47); //clock recovery
SPI_WRITE(0x23, 0xAE); //clock recovery
SPI_WRITE(0x24, 0x00); //clock recovery timing
SPI_WRITE(0x25, 0x06); //clock recovery timing
SPI_WRITE(0x6e, 0x0A); // Tx data rate 1
SPI_WRITE(0x6f, 0x3D); // Tx data rate 0
SPI_WRITE(0x30, 0x8c); // data access control
SPI_WRITE(0x32, 0xff); // header control
SPI_WRITE(0x33, 0x42);// // header 3, 2, 1,0 used for head length, fixed packet length, synchronize word length 3, 2,
SPI_WRITE(0x34, 0x10); // 16 nibble = 8byte preamble
SPI_WRITE(0x35, 0x30); //0x35 need to detect 24bit preamble
SPI_WRITE(0x36, 0x2d); // synchronize word
SPI_WRITE(0x37, 0xd4);
SPI_WRITE(0x38, 0x00);
SPI_WRITE(0x39, 0x00);
SPI_WRITE(0x3a, 's');
SPI_WRITE(0x3b, 'o');
SPI_WRITE(0x3c, 'n');
SPI_WRITE(0x3d, 'g');
SPI_WRITE(0x3e, 1); // total tx 1 byte
SPI_WRITE(0x3f, 's');
SPI_WRITE(0x40, 'o');
SPI_WRITE(0x41, 'n');
SPI_WRITE(0x42, 'g');
SPI_WRITE(0x43, 0xff); // all the bit to be checked
SPI_WRITE(0x44, 0xff); // all the bit to be checked
SPI_WRITE(0x45, 0xff); // all the bit to be checked
SPI_WRITE(0x46, 0xff); // all the bit to be checked
SPI_WRITE(0x6d, 0x07); // tx power to max
SPI_WRITE(0x79, 0x0); // no frequency hopping
SPI_WRITE(0x7a, 0x0); // no frequency hopping
SPI_WRITE(0x71, 0x22); // Gfsk, fd[8] =0, no invert for Tx/Rx data, fifo mode, txclk -->gpio
SPI_WRITE(0x72, 0x48); // frequency deviation setting to 45k = 72*625
SPI_WRITE(0x73, 0x0); // no frequency offset
SPI_WRITE(0x74, 0x0); // no frequency offset
SPI_WRITE(0x75, 0x53); // frequency set to 434MHz
SPI_WRITE(0x76, 0x64); // frequency set to 434MHz
SPI_WRITE(0x77, 0x00);// frequency set to 434MHz
SPI_WRITE(0x08, 0x03); // fifo reset
SPI_WRITE(0x08, 0x00);