void perTestTxInit()
{
uint8 i;
radioRegistersInit();
CHANNR = param_radio_channel_1;
PKTLEN = RADIO_PACKET_SIZE;
MCSM0 = 0x14; // Auto-calibrate when going from idle to RX or TX.
MCSM1 = 0x00; // Disable CCA. After RX, go to IDLE. After TX, go to IDLE.
// We leave MCSM2 at its default value.
IOCFG2 = 0b011011; // put out a PA_PD signal on P1_7 (active low when the radio is in TX mode)
dmaConfig.radio.DC6 = 19; // WORDSIZE = 0, TMODE = 0, TRIG = 19
dmaConfig.radio.SRCADDRH = (unsigned int)packet >> 8;
dmaConfig.radio.SRCADDRL = (unsigned int)packet;
dmaConfig.radio.DESTADDRH = XDATA_SFR_ADDRESS(RFD) >> 8;
dmaConfig.radio.DESTADDRL = XDATA_SFR_ADDRESS(RFD);
dmaConfig.radio.LENL = 1 + RADIO_PACKET_SIZE;
dmaConfig.radio.VLEN_LENH = 0b00100000; // Transfer length is FirstByte+1
dmaConfig.radio.DC7 = 0x40; // SRCINC = 1, DESTINC = 0, IRQMASK = 0, M8 = 0, PRIORITY = 0
for(i = 1; i < sizeof(packet); i++)
{
packet[i] = 'A' + i;
}
packet[0] = RADIO_PACKET_SIZE;
RFST = 4; // Switch radio to Idle mode.
}
/* dma_init: A function to initialise the DMA channel for use in erasing and storing data in flash.
Parameters: none.
Returns : void.
Uses : writeBuffer - A global variable we can address as the write buffer for writing data.
*/
void dma_Init(){
// Configure the flash write timer. See section 12.3.5 of the datasheet.
FWT = 32;
// Set up the DMA configuration block we use for writing to flash (See Figure 21 of the datasheet).
// LENL and LENH are sent later when we know how much data to write.
flashWriteDmaConfig.SRCADDRH = (unsigned short)&writeBuffer >> 8;
flashWriteDmaConfig.SRCADDRL = (unsigned char)&writeBuffer;
flashWriteDmaConfig.DESTADDRH = XDATA_SFR_ADDRESS(FWDATA) >> 8;
flashWriteDmaConfig.DESTADDRL = XDATA_SFR_ADDRESS(FWDATA);
// WORDSIZE = 0 : byte
// TMODE = 0 : single mode
// TRIG = 0d18 : flash
flashWriteDmaConfig.DC6 = 18;
// SRCINC = 01 : yes
// DESTINC = 00 : no
// IRQMASK = 0 : no *datasheet said this bit should be 1
// M8 = 0 : 8-bit transfer
// PRIORITY = 0b10 : high
flashWriteDmaConfig.DC7 = 0b01000010;
DMA0CFG = (uint16)&flashWriteDmaConfig;
}
