1 /***************************************************************************//**
2  * @file
3  * @brief Device initialization for EMU.
4  *******************************************************************************
5  * # License
6  * <b>Copyright 2019 Silicon Laboratories Inc. www.silabs.com</b>
7  *******************************************************************************
8  *
9  * SPDX-License-Identifier: Zlib
10  *
11  * The licensor of this software is Silicon Laboratories Inc.
12  *
13  * This software is provided 'as-is', without any express or implied
14  * warranty. In no event will the authors be held liable for any damages
15  * arising from the use of this software.
16  *
17  * Permission is granted to anyone to use this software for any purpose,
18  * including commercial applications, and to alter it and redistribute it
19  * freely, subject to the following restrictions:
20  *
21  * 1. The origin of this software must not be misrepresented; you must not
22  *    claim that you wrote the original software. If you use this software
23  *    in a product, an acknowledgment in the product documentation would be
24  *    appreciated but is not required.
25  * 2. Altered source versions must be plainly marked as such, and must not be
26  *    misrepresented as being the original software.
27  * 3. This notice may not be removed or altered from any source distribution.
28  *
29  ******************************************************************************/
30 
31 #include "sl_device_init_emu.h"
32 #include "sl_device_init_emu_config.h"
33 
34 #include "em_emu.h"
35 
sl_device_init_emu(void)36 sl_status_t sl_device_init_emu(void)
37 {
38   // EM2 set debug enable
39   EMU->CTRL = (EMU->CTRL & ~_EMU_CTRL_EM2DBGEN_MASK)
40               | (SL_DEVICE_INIT_EMU_EM2_DEBUG_ENABLE << _EMU_CTRL_EM2DBGEN_SHIFT);
41 
42   // EM4 Init
43   EMU_EM4Init_TypeDef em4_init = EMU_EM4INIT_DEFAULT;
44 
45   em4_init.pinRetentionMode = SL_DEVICE_INIT_EMU_EM4_PIN_RETENTION_MODE;
46   EMU_EM4Init(&em4_init);
47 
48   return SL_STATUS_OK;
49 }
50