ea6d73f140
1. Upgrade Cortex driver library (CMSIS -> CMSIS & Device): version 2.3.2 -> 3.0.1 & 3.0.0 - Remove "bsp/efm32/Libraries/CMSIS/Lib/ARM", "bsp/efm32/Libraries/CMSIS/Lib/G++" and "bsp/efm32/Libraries/CMSIS/SVD" to save space 2. Upgrade EFM32 driver libraries (efm32lib -> emlib): version 2.3.2 -> 3.0.0 - Remove "bsp/efm32/Libraries/Device/EnergyMicro/EFM32LG" and "bsp/efm32/Libraries/Device/EnergyMicro/EFM32TG" to save space 3. Upgrade EFM32GG_DK3750 development kit driver library: version 1.2.2 -> 2.0.1 4. Upgrade EFM32_Gxxx_DK development kit driver library: version 1.7.3 -> 2.0.1 5. Add energy management unit driver and test code 6. Modify linker script and related code to compatible with new version of libraries 7. Change EFM32 branch version number to 1.0 8. Add photo frame demo application git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2122 bbd45198-f89e-11dd-88c7-29a3b14d5316
166 lines
5.5 KiB
C
166 lines
5.5 KiB
C
/***************************************************************************//**
|
|
* @file
|
|
* @brief Chip Initialization API
|
|
* @author Energy Micro AS
|
|
* @version 3.0.0
|
|
*******************************************************************************
|
|
* @section License
|
|
* <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
|
|
*******************************************************************************
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
*
|
|
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
|
|
* obligation to support this Software. Energy Micro AS is providing the
|
|
* Software "AS IS", with no express or implied warranties of any kind,
|
|
* including, but not limited to, any implied warranties of merchantability
|
|
* or fitness for any particular purpose or warranties against infringement
|
|
* of any proprietary rights of a third party.
|
|
*
|
|
* Energy Micro AS will not be liable for any consequential, incidental, or
|
|
* special damages, or any other relief, or for any claim by any third party,
|
|
* arising from your use of this Software.
|
|
*
|
|
******************************************************************************/
|
|
#ifndef __EM_CHIP_H
|
|
#define __EM_CHIP_H
|
|
|
|
#include "em_part.h"
|
|
#include "em_system.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/***************************************************************************//**
|
|
* @addtogroup EM_Library
|
|
* @{
|
|
******************************************************************************/
|
|
|
|
/***************************************************************************//**
|
|
* @addtogroup CHIP
|
|
* @brief Chip Initialization API
|
|
* @{
|
|
******************************************************************************/
|
|
|
|
/**************************************************************************//**
|
|
* @brief
|
|
* Chip initialization routine for revision errata workarounds
|
|
*
|
|
* This init function will configure the EFM32 device to a state where it is
|
|
* as similar as later revisions as possible, to improve software compatibility
|
|
* with newer parts. See the device specific errata for details.
|
|
*****************************************************************************/
|
|
__STATIC_INLINE void CHIP_Init(void)
|
|
{
|
|
/* Currently only run time changes for Gecko devices */
|
|
#if defined(_EFM32_GECKO_FAMILY)
|
|
uint32_t rev;
|
|
SYSTEM_ChipRevision_TypeDef chipRev;
|
|
volatile uint32_t *reg;
|
|
|
|
rev = *(volatile uint32_t *)(0x0FE081FC);
|
|
/* Engineering Sample calibration setup */
|
|
if ((rev >> 24) == 0)
|
|
{
|
|
reg = (volatile uint32_t *)0x400CA00C;
|
|
*reg &= ~(0x70UL);
|
|
/* DREG */
|
|
reg = (volatile uint32_t *)0x400C6020;
|
|
*reg &= ~(0xE0000000UL);
|
|
*reg |= ~(7UL << 25);
|
|
}
|
|
if ((rev >> 24) <= 3)
|
|
{
|
|
/* DREG */
|
|
reg = (volatile uint32_t *)0x400C6020;
|
|
*reg &= ~(0x00001F80UL);
|
|
/* Update CMU reset values */
|
|
reg = (volatile uint32_t *)0x400C8040;
|
|
*reg = 0;
|
|
reg = (volatile uint32_t *)0x400C8044;
|
|
*reg = 0;
|
|
reg = (volatile uint32_t *)0x400C8058;
|
|
*reg = 0;
|
|
reg = (volatile uint32_t *)0x400C8060;
|
|
*reg = 0;
|
|
reg = (volatile uint32_t *)0x400C8078;
|
|
*reg = 0;
|
|
}
|
|
|
|
SYSTEM_ChipRevisionGet(&chipRev);
|
|
if (chipRev.major == 0x01)
|
|
{
|
|
/* Rev A errata handling for EM2/3. Must enable DMA clock in order for EM2/3 */
|
|
/* to work. This will be fixed in later chip revisions, so only do for rev A. */
|
|
if (chipRev.minor == 00)
|
|
{
|
|
reg = (volatile uint32_t *)0x400C8040;
|
|
*reg |= 0x2;
|
|
}
|
|
|
|
/* Rev A+B errata handling for I2C when using EM2/3. USART0 clock must be enabled */
|
|
/* after waking up from EM2/EM3 in order for I2C to work. This will be fixed in */
|
|
/* later chip revisions, so only do for rev A+B. */
|
|
if (chipRev.minor <= 0x01)
|
|
{
|
|
reg = (volatile uint32_t *)0x400C8044;
|
|
*reg |= 0x1;
|
|
}
|
|
}
|
|
/* Ensure correct ADC/DAC calibration value */
|
|
rev = *(volatile uint32_t *)0x0FE081F0;
|
|
if (rev < 0x4C8ABA00)
|
|
{
|
|
uint32_t cal;
|
|
|
|
/* Enable ADC/DAC clocks */
|
|
reg = (volatile uint32_t *)0x400C8044UL;
|
|
*reg |= (1 << 14 | 1 << 11);
|
|
|
|
/* Retrive calibration values */
|
|
cal = ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x00007F00UL) >>
|
|
8) << 24;
|
|
|
|
cal |= ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x0000007FUL) >>
|
|
0) << 16;
|
|
|
|
cal |= ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x00007F00UL) >>
|
|
8) << 8;
|
|
|
|
cal |= ((*(volatile uint32_t *)(0x0FE081B4UL) & 0x0000007FUL) >>
|
|
0) << 0;
|
|
|
|
/* ADC0->CAL = 1.25 reference */
|
|
reg = (volatile uint32_t *)0x40002034UL;
|
|
*reg = cal;
|
|
|
|
/* DAC0->CAL = 1.25 reference */
|
|
reg = (volatile uint32_t *)(0x4000402CUL);
|
|
cal = *(volatile uint32_t *)0x0FE081C8UL;
|
|
*reg = cal;
|
|
|
|
/* Turn off ADC/DAC clocks */
|
|
reg = (volatile uint32_t *)0x400C8044UL;
|
|
*reg &= ~(1 << 14 | 1 << 11);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/** @} (end addtogroup CHIP) */
|
|
/** @} (end addtogroup EM_Library) */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __EM_CHIP_H */
|