Merge pull request #31 from EnhancedRadioDevices/master

Read register command

Readme.md

@@ -174,6 +174,11 @@ Use this command to manually control the LEDs on the device.
 Follow this command with the LED you want to configure (0 for green, 1 for blue) and the mode
 (0 for off, 1 for on, 2 for auto).
 
+### Read Register: 9
+
+Use this command to read the current value of one of the major registers. See Major Registers section
+for a list of available registers and their functions.
+
 ## Frequency Channel Selection
 
 Each channel number corresponds to a different specific frequency. Channels start with 916.5 MHz at 

commands.c

@@ -18,7 +18,8 @@ CommandHandler handlers[] = {
   /* 5 */ cmd_send_and_listen,
   /* 6 */ cmd_update_register,
   /* 7 */ cmd_reset,
-  /* 8 */ cmd_led
+  /* 8 */ cmd_led,
+  /* 9 */ cmd_read_register
 };
 
 void cmd_get_packet() {
@@ -102,6 +103,120 @@ void cmd_send_and_listen() {
   }
 }
 
+void cmd_read_register() {
+  uint8_t addr;
+  uint8_t value;
+  addr = serial_rx_byte();
+  switch(addr) {
+    case 0x00:
+      value = SYNC1;
+      break;
+    case 0x01:
+      value = SYNC0;
+      break;
+    case 0x02:
+      value = PKTLEN;
+      break;
+    case 0x03:
+      value = PKTCTRL1;
+      break;
+    case 0x04:
+      value = PKTCTRL0;
+      break;
+    case 0x05:
+      value = ADDR;
+      break;
+    case 0x06:
+      value = CHANNR;
+      break;
+    case 0x07:
+      value = FSCTRL1;
+      break;
+    case 0x08:
+      value = FSCTRL0;
+      break;
+    case 0x09:
+      value = FREQ2;
+      break;
+    case 0x0A:
+      value = FREQ1;
+      break;
+    case 0x0B:
+      value = FREQ0;
+      break;
+    case 0x0C:
+      value = MDMCFG4;
+      break;
+    case 0x0D:
+      value = MDMCFG3;
+      break;
+    case 0x0E:
+      value = MDMCFG2;
+      break;
+    case 0x0F:
+      value = MDMCFG1;
+      break;
+    case 0x10:
+      value = MDMCFG0;
+      break;
+    case 0x11:
+      value = DEVIATN;
+      break;
+    case 0x12:
+      value = MCSM2;
+      break;
+    case 0x13:
+      value = MCSM1;
+      break;
+    case 0x14:
+      value = MCSM0;
+      break;
+    case 0x15:
+      value = FOCCFG;
+      break;
+    case 0x16:
+      value = BSCFG;
+      break;
+    case 0x17:
+      value = AGCCTRL2;
+      break;
+    case 0x18:
+      value = AGCCTRL1;
+      break;
+    case 0x19:
+      value = AGCCTRL0;
+      break;
+    case 0x1A:
+      value = FREND1;
+      break;
+    case 0x1B:
+      value = FREND0;
+      break;
+    case 0x1C:
+      value = FSCAL3;
+      break;
+    case 0x1D:
+      value = FSCAL2;
+      break;
+    case 0x1E:
+      value = FSCAL1;
+      break;
+    case 0x1F:
+      value = FSCAL0;
+      break;
+    case 0x20:
+      value = PA_TABLE1;
+      break;
+    case 0x21:
+      value = PA_TABLE0;
+      break;
+    default:
+      value = 0x5A;
+  }
+  serial_tx_byte(value);
+  serial_tx_byte(0);
+}
+
 void cmd_update_register() {
   uint8_t addr;
   uint8_t value;