Diff: OSHChip_Init.c

Revision:

0:69ded1c7cad0

Child:

1:23b7ed707d25

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OSHChip_Init.c	Tue Mar 22 07:57:23 2016 +0000
@@ -0,0 +1,44 @@
+//
+//  OSHChip_Init.cpp
+//
+//  This function allows OSHChip projects that use the UART for printf()
+//  to work with the target board set to nRF51-DK
+//
+
+//
+//  By the time your program gets to main(), the pre-main initialization has
+//  (among other things) setup the UART to use the nRF51-DK UART pins, and a
+//  transmission speed of 9600 Baud, 8N1.
+//
+//      nRF51-DK
+//          RX_PIN_NUMBER  = p11,
+//          TX_PIN_NUMBER  = p9,
+//          CTS_PIN_NUMBER = p10,
+//          RTS_PIN_NUMBER = p8,
+//
+//  For OSHChip, the default is TX on pin 1, RX on pin 2, and no CTS or RTS
+//  because OSHChip has so few I/O pins.
+//
+//  Due to the default implementation of Serial I/O in mbed, when \n
+//  is set to the UART, all that is actually transmitted is the "newline".
+//  In a Unix/Mac environment this is usually sufficient, but in a 
+//  DOS/Windows environment, \n\r needs to be sent.
+//
+//  If you are using the Serial to USB service on the OSHChip_CMSIS_DAP,
+//  TXD (pin 1 on OSHChip as configured by this function) should be
+//  connected to the pin closest to the corner of the PCB on connector J5,
+//  which is labeled "RX In". RXD (pin 2 on OSHChip as configured by this
+//  function) should be connected to the other pin on J5 which is labeled
+//  "TX Out"
+//
+
+#include "nrf51.h"
+#include "OSHChip_Pin_Names.h"
+
+void OSHChip_Init(void)
+{
+    NRF_UART0->PSELTXD = TX_PIN_NUMBER;
+    NRF_UART0->PSELRXD = RX_PIN_NUMBER;
+    NRF_UART0->PSELRTS = 0xFFFFFFFF;
+    NRF_UART0->PSELCTS = 0xFFFFFFFF;
+}