Diff: board_shield.cpp

Revision:

5:1652e04809fb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/board_shield.cpp	Mon Feb 05 15:03:27 2018 -0800
@@ -0,0 +1,91 @@
+#if !defined(TARGET_MOTE_L152RC) && !defined(TARGET_DISCO_L072CZ_LRWAN1)
+#include "platform.h"
+
+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;
+    }
+}
+    
+DigitalIn pinA(PC_3);
+DigitalIn pinB(PC_2);
+DigitalIn pinC(PC_6);
+DigitalIn pinD(PC_8);
+
+void cmd_op(int dbm)
+{
+    int i = dbm;
+    RegPdsTrim1_t pds_trim;
+    uint8_t adr;
+    if (radio.type == SX1276)
+        adr = REG_PDSTRIM1_SX1276;
+    else
+        adr = REG_PDSTRIM1_SX1272;
+       
+    pds_trim.octet = radio.read_reg(adr);   
+
+    if (radio.RegPaConfig.bits.PaSelect) {
+        /* PABOOST used: +2dbm to +17, or +20 */
+        if (i == 20) {
+            printf("+20dBm PADAC bias\r\n");
+            i -= 3;
+            pds_trim.bits.prog_txdac = 7;
+            radio.write_reg(adr, pds_trim.octet);
+            cmd_ocp(150);
+        }
+        if (i > 1)
+                radio.RegPaConfig.bits.OutputPower = i - 2;
+    } else {
+        /* RFO used: -1 to +14dbm */
+        if (i < 15)
+            radio.RegPaConfig.bits.OutputPower = i + 1;
+    }
+    radio.write_reg(REG_PACONFIG, radio.RegPaConfig.octet);
+
+    radio.RegPaConfig.octet = radio.read_reg(REG_PACONFIG);
+    if (radio.RegPaConfig.bits.PaSelect) {
+        printf("PA_BOOST ");
+        dbm = radio.RegPaConfig.bits.OutputPower + pds_trim.bits.prog_txdac - 2;
+    } else {
+        printf("RFO ");
+        dbm = radio.RegPaConfig.bits.OutputPower - 1;
+    }
+    printf("OutputPower:%ddBm\r\n", dbm);
+}
+
+void board_init()
+{
+    radio.RegPaConfig.octet = radio.read_reg(REG_PACONFIG);
+
+    /* 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;
+        cmd_op(20);
+    } else {
+        /* MAS shield board, only RFO TX */
+        radio.RegPaConfig.bits.PaSelect = 0;
+        printf("MAS\r\n");
+        cmd_op(14);
+    }
+    rfsw.output();
+
+    radio.write_reg(REG_PACONFIG, radio.RegPaConfig.octet);
+}
+#endif /*  !defined(TARGET_MOTE_L152RC) && !defined(TARGET_DISCO_L072CZ_LRWAN1) */