wayne roberts
raises pin at time instructed by received LoRa packet.
Dependencies: sx126x sx12xx_hal
radio chip selection
Radio chip driver is not included, allowing choice of radio device.
If you're using SX1272 or SX1276, then import sx127x driver into your program.
if you're using SX1261 or SX1262, then import sx126x driver into your program.
if you're using SX1280, then import sx1280 driver into your program.
If you're using NAmote72 or Murata discovery, then you must import only sx127x driver.
Transmitter side is at Alarm Slave project page.
Output is observed on nucleo morpho connector pins pin[A-D]: see code for actual pins used.
Revision 3:f81d64ff0164, committed 2018-07-18
- Comitter:
- Wayne Roberts
- Date:
- Wed Jul 18 18:50:19 2018 -0700
- Parent:
- 2:bf201940a9db
- Commit message:
- use sx12xx_hal
Changed in this revision
diff -r bf201940a9db -r f81d64ff0164 SX127x.lib --- a/SX127x.lib Fri Jan 26 01:19:39 2018 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -https://developer.mbed.org/users/dudmuck/code/SX127x/#b66d7a057b22
diff -r bf201940a9db -r f81d64ff0164 main.cpp
--- a/main.cpp Fri Jan 26 01:19:39 2018 +0000
+++ b/main.cpp Wed Jul 18 18:50:19 2018 -0700
@@ -1,69 +1,29 @@
-#include "sx127x_lora.h"
+#include "radio.h"
DigitalOut myled(LED1);
-#ifdef TARGET_DISCO_L072CZ_LRWAN1
- SPI spi(PA_7, PA_6, PB_3); // mosi, miso, sclk
- // dio0, dio1, nss, spi, rst
- SX127x radio(PB_4, PB_1, PA_15, spi, PC_0);
-
- #define CRF1 PA_1
- #define CRF2 PC_2
- #define CRF3 PC_1
- DigitalOut Vctl1(CRF1);
- DigitalOut Vctl2(CRF2);
- DigitalOut Vctl3(CRF3);
-
- void rfsw_callback()
- {
- if (radio.RegOpMode.bits.Mode == RF_OPMODE_TRANSMITTER) {
- Vctl1 = 0;
- if (radio.RegPaConfig.bits.PaSelect) {
- Vctl2 = 0;
- Vctl3 = 1;
- } else {
- Vctl2 = 1;
- Vctl3 = 0;
- }
- } else {
- if (radio.RegOpMode.bits.Mode == RF_OPMODE_RECEIVER || radio.RegOpMode.bits.Mode == RF_OPMODE_RECEIVER_SINGLE)
- Vctl1 = 1;
- else
- Vctl1 = 0;
-
- Vctl2 = 0;
- Vctl3 = 0;
- }
- }
-
+#if defined(SX127x_H) || defined(SX126x_H)
+ #define BW_KHZ 500
+ #define SPREADING_FACTOR 11
+ #define CF_HZ 910800000
+#elif defined(SX128x_H)
+ #define BW_KHZ 200
+ #define SPREADING_FACTOR 11
+ #define CF_HZ 2487000000
+#endif
+
+#ifdef TARGET_DISCO_L072CZ_LRWAN1
DigitalOut pinA(PB_12);
DigitalOut pinB(PB_13);
DigitalOut pinC(PB_14);
DigitalOut pinD(PB_15);
#else
- SPI spi(D11, D12, D13); // mosi, miso, sclk
- // dio0, dio1, nss, spi, rst
- SX127x radio( D2, D3, D10, spi, A0); // sx1276 arduino shield
-
- DigitalInOut rfsw(A4); // for SX1276 arduino shield
-
- void rfsw_callback()
- {
- if (radio.RegOpMode.bits.Mode == RF_OPMODE_TRANSMITTER)
- rfsw = 1;
- else
- rfsw = 0;
- }
-
DigitalOut pinA(PC_3);
DigitalOut pinB(PC_2);
DigitalOut pinC(PC_6);
DigitalOut pinD(PC_8);
#endif /* !TARGET_DISCO_L072CZ_LRWAN1 */
-/**********************************************************************/
-SX127x_lora lora(radio);
-
DigitalOut* pin;
Timeout to;
@@ -74,6 +34,8 @@
#define CMD_PINC 0x06
#define CMD_PIND 0x08
+/**********************************************************************/
+
void alarm_pin_clr()
{
pin->write(0);
@@ -111,23 +73,22 @@
void get_alarm()
{
- uint16_t rx_crc, crc = crc_ccitt(radio.rx_buf, 5);
- rx_crc = radio.rx_buf[5];
+ uint16_t rx_crc, crc = crc_ccitt(Radio::radio.rx_buf, 5);
+ rx_crc = Radio::radio.rx_buf[5];
rx_crc <<= 8;
- rx_crc += radio.rx_buf[6];
+ rx_crc += Radio::radio.rx_buf[6];
//printf("%u) crc rx:%04x, calc:%04x\r\n", lora.RegRxNbBytes, rx_crc, crc);
if (crc == rx_crc) {
- uint8_t c = radio.rx_buf[0];
- //if (radio.rx_buf[0] == CMD_ALARM)
+ uint8_t c = Radio::radio.rx_buf[0];
if (c == CMD_PINA || c == CMD_PINB || c == CMD_PINC || c == CMD_PIND) {
unsigned delay;
- delay = radio.rx_buf[1];
+ delay = Radio::radio.rx_buf[1];
delay <<= 8;
- delay += radio.rx_buf[2];
+ delay += Radio::radio.rx_buf[2];
delay <<= 8;
- delay += radio.rx_buf[3];
+ delay += Radio::radio.rx_buf[3];
delay <<= 8;
- delay += radio.rx_buf[4];
+ delay += Radio::radio.rx_buf[4];
switch (c) {
case CMD_PINA: pin = &pinA; break;
case CMD_PINB: pin = &pinB; break;
@@ -137,55 +98,49 @@
to.attach_us(&alarm_pin_set, delay);
printf("delay:%u\r\n", delay);
} else
- printf("cmd? %02x\r\n", radio.rx_buf[0]);
+ printf("cmd? %02x\r\n", Radio::radio.rx_buf[0]);
} else
printf("crc fail %04x, %04x\r\n", rx_crc, crc);
}
+
+void txDoneCB()
+{
+}
+
+void rxDoneCB(uint8_t size, float Rssi, float Snr)
+{
+ get_alarm();
+ printf("%.1fdBm snr:%.1fdB ", Rssi, Snr);
+}
+
+const RadioEvents_t rev = {
+ /* Dio0_top_half */ NULL,
+ /* TxDone_topHalf */ NULL,
+ /* TxDone_botHalf */ txDoneCB,
+ /* TxTimeout */ NULL,
+ /* RxDone */ rxDoneCB,
+ /* RxTimeout */ NULL,
+ /* RxError */ NULL,
+ /* FhssChangeChannel */NULL,
+ /* CadDone */ NULL
+};
+
int main()
{
printf("\r\nreset-rx\r\n");
- radio.rf_switch = rfsw_callback;
-
- radio.set_frf_MHz(910.8);
- lora.enable();
- lora.setBw_KHz(500);
- lora.setSf(11);
+
+
+ Radio::Init(&rev);
+
+ Radio::Standby();
+ Radio::LoRaModemConfig(BW_KHZ, SPREADING_FACTOR, 1);
+ Radio::LoRaPacketConfig(8, false, true, false); // preambleLen, fixLen, crcOn, invIQ
+ Radio::SetChannel(CF_HZ);
- radio.RegPaConfig.octet = radio.read_reg(REG_PACONFIG);
-#ifdef TARGET_DISCO_L072CZ_LRWAN1
- radio.RegPaConfig.bits.PaSelect = 1;
-#else
- /* RFO or PABOOST choice:
- * SX1276 shield: RFO if using 900MHz, or PA_BOOST if using 433MHz
- */
- rfsw.input();
- if (rfsw.read()) {
- printf("LAS\r\n");
- /* LAS HF=PA_BOOST LF=RFO */
- if (radio.HF)
- radio.RegPaConfig.bits.PaSelect = 1;
- else
- radio.RegPaConfig.bits.PaSelect = 0;
- } else {
- /* MAS shield board, only RFO TX */
- radio.RegPaConfig.bits.PaSelect = 0;
- printf("MAS\r\n");
- }
- rfsw.output();
-#endif /* !TARGET_DISCO_L072CZ_LRWAN1 */
- radio.write_reg(REG_PACONFIG, radio.RegPaConfig.octet);
-
- lora.start_rx(RF_OPMODE_RECEIVER);
+ Radio::Rx(0);
for (;;) {
- if (lora.service() == SERVICE_READ_FIFO) {
- /*int i;
- for (i = 0; i < lora.RegRxNbBytes; i++) {
- printf("%02x ", radio.rx_buf[i]);
- }
- printf("\r\n");*/
- get_alarm();
- }
+ Radio::service();
}
}
diff -r bf201940a9db -r f81d64ff0164 mbed-os.lib --- a/mbed-os.lib Fri Jan 26 01:19:39 2018 +0000 +++ b/mbed-os.lib Wed Jul 18 18:50:19 2018 -0700 @@ -1,1 +1,1 @@ -https://github.com/ARMmbed/mbed-os/#96d9a00d0a1d25095b330095fa81c40f7741777c +https://github.com/ARMmbed/mbed-os/#dd6482b9555c43cab2e80c9e3715edf1806f87d9
diff -r bf201940a9db -r f81d64ff0164 sx126x.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sx126x.lib Wed Jul 18 18:50:19 2018 -0700 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/dudmuck/code/sx126x/#497af0bd9e53
diff -r bf201940a9db -r f81d64ff0164 sx12xx_hal.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sx12xx_hal.lib Wed Jul 18 18:50:19 2018 -0700 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/dudmuck/code/sx12xx_hal/#c321b5919516