Fred Barnes / Mbed OS co657_nrf52_beacons

Sample NordicSemicondictor nRF52 beacon discovery for CO657 (University of Kent, UK); builds on mbed-os, derived from LEDBeacon sample code (on github). Writes out beacons recently seen to serial port and/or LCD (#ifdef job) on the MBED application shield.

Dependencies:   C12832

Files at this revision

API Documentation at this revision

Revision 2:a19832685c89, committed 2016-10-28

Comitter:
co657_frmb
Date:
Fri Oct 28 09:58:31 2016 +0000
Parent:
1:7986f9873e20
Commit message:
disable flow-control on serial port (manual)

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Fri Oct 28 08:18:04 2016 +0000
+++ b/main.cpp	Fri Oct 28 09:58:31 2016 +0000
@@ -13,7 +13,7 @@
 #include "C12832.h"
 
 /* output choice */
-#undef SERIAL_OUTPUT
+#define SERIAL_OUTPUT
 #define LCD_OUTPUT
 
 /* FRMB note: with the MBED application shield connected, the various LEDs/buttons on the nRF52 become pretty helpless */
@@ -163,7 +163,7 @@
         host.printf ("%2.2x", params->peerAddr[i]);
     }
     host.printf (":%d:%u:%d:", params->rssi, (unsigned int)params->type, params->advertisingDataLen);
-    for (i=0; (i<params->advertisingDataLen) && (hlen < (HLEN_MAX-4)); i++) {
+    for (i=0; i<params->advertisingDataLen; i++) {
         uint8_t ch = (uint8_t)params->advertisingData[i];
         
         host.printf ("%2.2x", ch);
@@ -258,6 +258,19 @@
 
 #ifdef SERIAL_OUTPUT
     host.baud (38400);
+    
+    /* HACK: turn off flow control (okay, this seems to work!) */
+    {
+        volatile uint32_t *ubase_psel_cts = (uint32_t *)0x40002510;
+        volatile uint32_t *ubase_psel_rts = (uint32_t *)0x40002508;
+        
+        //host.printf ("MSG: UART: PSEL.RTS reg is 0x%8.8x\r\n", *ubase_psel_rts);
+        //host.printf ("MSG: UART: PSEL.CTS reg is 0x%8.8x\r\n", *ubase_psel_cts);
+        
+        // Crude: disconnect CTS/RTS
+        *ubase_psel_cts = (*ubase_psel_cts | 0x80000000);
+        *ubase_psel_rts = (*ubase_psel_rts | 0x80000000);
+    }
 #endif
 
     for (int i=0; i<MAX_BEACONS; i++) {