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/******************************************************************************************************************************************
* �ļ�����: SWM320_flash.c
* ����˵��: ʹ��оƬ��IAP���ܽ�Ƭ��Flashģ���EEPROM���������ݣ������ʧ
* ����֧��: http://www.synwit.com.cn/e/tool/gbook/?bid=1
* ע������:
* �汾����: V1.1.0 2017��10��25��
* ������¼:
*******************************************************************************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
* -ECTION WITH THEIR PRODUCTS.
*
* COPYRIGHT 2012 Synwit Technology
*******************************************************************************************************************************************/
#include "SWM320.h"
#include "SWM320_flash.h"
__attribute__((section("PlaceInRAM")))
static void switchTo80M(void)
{
uint32_t i;
for (i = 0; i < 50; i++) __NOP();
FLASH->CFG0 = 0x4bf;
FLASH->CFG1 = 0xabfc7a6e;
for (i = 0; i < 50; i++) __NOP();
}
/******************************************************************************************************************************************
* ��������: FLASH_Erase()
* ����˵��: Ƭ��Flash����
* �� ��: uint32_t addr ������ַ
* �� ��: ��
* ע������: ��
******************************************************************************************************************************************/
void FLASH_Erase(uint32_t addr)
{
// switchTo80M();
FLASH->ERASE = addr | ((uint32_t)1 << FLASH_ERASE_REQ_Pos);
while ((FLASH->STAT & FLASH_STAT_ERASE_GOING_Msk) == 0);
while ((FLASH->STAT & FLASH_STAT_ERASE_GOING_Msk) == 1);
FLASH->ERASE = 0;
// switchTo40M();
}
/******************************************************************************************************************************************
* ��������: FLASH_Write()
* ����˵��: Ƭ��Flashд��
* �� ��: uint32_t addr д���ַ
* uint32_t buff[] Ҫд�������
* uint32_t size Ҫд�����ݵĸ�������Ϊ��λ
* �� ��: ��
* ע������: ��
******************************************************************************************************************************************/
void FLASH_Write(uint32_t addr, uint32_t buff[], uint32_t size)
{
uint32_t i, j;
switchTo80M();
FLASH->CACHE |= (1 << FLASH_CACHE_PROG_Pos);
for (i = 0; i < size / 4; i++)
{
FLASH->ADDR = addr + i * 4 * 4;
for (j = 0; j < 4; j++)
FLASH->DATA = buff[i * 4 + j];
while ((FLASH->STAT & FLASH_STAT_FIFO_EMPTY_Msk) == 0) __NOP();
}
if ((size % 4) != 0)
{
FLASH->ADDR = addr + i * 4 * 4;
for (j = 0; j < size % 4; j++)
FLASH->DATA = buff[i * 4 + j];
while ((FLASH->STAT & FLASH_STAT_FIFO_EMPTY_Msk) == 0) __NOP();
}
while (FLASH->STAT & FLASH_STAT_PROG_GOING_Msk);
FLASH->CACHE |= (1 << FLASH_CACHE_CLEAR_Pos);
FLASH->CACHE = 0;
// switchTo40M();
}
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