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Custom SPI support

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Auri 2020-06-02 13:50:30 +02:00 committed by GitHub
parent 06d2786f77
commit da14a5ad50
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1 changed files with 11 additions and 11 deletions
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20
RFM69_ATC.cpp
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@ -99,29 +99,29 @@ void RFM69_ATC::sendFrame(uint16_t toAddress, const void* buffer, uint8_t buffer
// write to FIFO // write to FIFO
select(); select();
SPI.transfer(REG_FIFO | 0x80); _spi->transfer(REG_FIFO | 0x80);
SPI.transfer(bufferSize + 3); _spi->transfer(bufferSize + 3);
SPI.transfer((uint8_t)toAddress); //lower 8bits _spi->transfer((uint8_t)toAddress); //lower 8bits
SPI.transfer((uint8_t)_address); //lower 8bits _spi->transfer((uint8_t)_address); //lower 8bits
// CTL (control byte) // CTL (control byte)
uint8_t CTLbyte=0x0; uint8_t CTLbyte=0x0;
if (toAddress > 0xFF) CTLbyte |= (toAddress & 0x300) >> 6; //assign last 2 bits of address if > 255 if (toAddress > 0xFF) CTLbyte |= (toAddress & 0x300) >> 6; //assign last 2 bits of address if > 255
if (_address > 0xFF) CTLbyte |= (_address & 0x300) >> 8; //assign last 2 bits of address if > 255 if (_address > 0xFF) CTLbyte |= (_address & 0x300) >> 8; //assign last 2 bits of address if > 255
if (sendACK) { // TomWS1: adding logic to return ACK_RSSI if requested if (sendACK) { // TomWS1: adding logic to return ACK_RSSI if requested
SPI.transfer(CTLbyte | RFM69_CTL_SENDACK | (sendRSSI?RFM69_CTL_RESERVE1:0)); // TomWS1 TODO: Replace with EXT1 _spi->transfer(CTLbyte | RFM69_CTL_SENDACK | (sendRSSI?RFM69_CTL_RESERVE1:0)); // TomWS1 TODO: Replace with EXT1
if (sendRSSI) { if (sendRSSI) {
SPI.transfer(abs(lastRSSI)); //RSSI dBm is negative expected between [-100 .. -20], convert to positive and pass along as single extra header byte _spi->transfer(abs(lastRSSI)); //RSSI dBm is negative expected between [-100 .. -20], convert to positive and pass along as single extra header byte
bufferSize -=1; // account for the extra ACK-RSSI 'data' byte bufferSize -=1; // account for the extra ACK-RSSI 'data' byte
} }
} }
else if (requestACK) { // TODO: add logic to request ackRSSI with ACK - this is when both ends of a transmission would dial power down. May not work well for gateways in multi node networks else if (requestACK) { // TODO: add logic to request ackRSSI with ACK - this is when both ends of a transmission would dial power down. May not work well for gateways in multi node networks
SPI.transfer(CTLbyte | (_targetRSSI ? RFM69_CTL_REQACK | RFM69_CTL_RESERVE1 : RFM69_CTL_REQACK)); _spi->transfer(CTLbyte | (_targetRSSI ? RFM69_CTL_REQACK | RFM69_CTL_RESERVE1 : RFM69_CTL_REQACK));
} }
else SPI.transfer(CTLbyte); else _spi->transfer(CTLbyte);
for (uint8_t i = 0; i < bufferSize; i++) for (uint8_t i = 0; i < bufferSize; i++)
SPI.transfer(((uint8_t*) buffer)[i]); _spi->transfer(((uint8_t*) buffer)[i]);
unselect(); unselect();
// no need to wait for transmit mode to be ready since its handled by the radio // no need to wait for transmit mode to be ready since its handled by the radio
@ -141,7 +141,7 @@ void RFM69_ATC::interruptHook(uint8_t CTLbyte) {
if (ACK_RECEIVED && ACK_RSSI_REQUESTED) { if (ACK_RECEIVED && ACK_RSSI_REQUESTED) {
// the next two bytes contain the ACK_RSSI (assuming the datalength is valid) // the next two bytes contain the ACK_RSSI (assuming the datalength is valid)
if (DATALEN >= 1) { if (DATALEN >= 1) {
_ackRSSI = -1 * SPI.transfer(0); //rssi was sent as single byte positive value, get the real value by * -1 _ackRSSI = -1 * _spi->transfer(0); //rssi was sent as single byte positive value, get the real value by * -1
DATALEN -= 1; // and compensate data length accordingly DATALEN -= 1; // and compensate data length accordingly
// TomWS1: Now dither transmitLevel value (register update occurs later when transmitting); // TomWS1: Now dither transmitLevel value (register update occurs later when transmitting);
if (_targetRSSI != 0) { if (_targetRSSI != 0) {