96 lines
3.8 KiB
C
96 lines
3.8 KiB
C
/******************************************************************************************************************************************
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* 文件名称: SWM320_flash.c
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* 功能说明: 使用芯片的IAP功能将片上Flash模拟成EEPROM来保存数据，掉电后不丢失
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* 技术支持: http://www.synwit.com.cn/e/tool/gbook/?bid=1
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* 注意事项:
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* 版本日期: V1.1.0 2017年10月25日
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* 升级记录:
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*******************************************************************************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
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* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
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* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
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* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
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* -ECTION WITH THEIR PRODUCTS.
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*
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* COPYRIGHT 2012 Synwit Technology
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*******************************************************************************************************************************************/
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#include "SWM320.h"
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#include "SWM320_flash.h"
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IAP_Cache_Reset_t IAP_Cache_Reset = (IAP_Cache_Reset_t)0x11000601;
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IAP_Flash_Param_t IAP_Flash_Param = (IAP_Flash_Param_t)0x11000681;
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IAP_Flash_Erase_t IAP_Flash_Erase = (IAP_Flash_Erase_t)0x11000781;
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IAP_Flash_Write_t IAP_Flash_Write = (IAP_Flash_Write_t)0x11000801;
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/******************************************************************************************************************************************
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* 函数名称: FLASH_Erase()
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* 功能说明: 片内Flash擦除
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* 输 入: uint32_t addr 擦除地址，扇区大小为4K Byte
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void FLASH_Erase(uint32_t addr)
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{
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__disable_irq();
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IAP_Flash_Erase(addr / 0x1000);
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IAP_Cache_Reset();
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__enable_irq();
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}
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/******************************************************************************************************************************************
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* 函数名称: FLASH_Write()
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* 功能说明: 片内Flash写入
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* 输 入: uint32_t addr 写入地址
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* uint32_t buff[] 要写入的数据
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* uint32_t count 要写入数据的个数，以字为单位，且必须是4的整数倍，即最少写入4个字
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* 输 出: 无
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* 注意事项: 写入数据个数必须是4的整数倍，即最少写入4个字
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******************************************************************************************************************************************/
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void FLASH_Write(uint32_t addr, uint32_t buff[], uint32_t count)
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{
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__disable_irq();
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IAP_Flash_Write(addr, (uint32_t)buff, count / 4);
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IAP_Cache_Reset();
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__enable_irq();
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}
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/******************************************************************************************************************************************
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* 函数名称: Flash_Param_at_xMHz()
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* 功能说明: 将Flash参数设置成xMHz主频下运行时所需的参数
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* 输 入: uint32_t x 可取值
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void Flash_Param_at_xMHz(uint32_t x)
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{
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__disable_irq();
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switch (x)
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{
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case 30:
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IAP_Flash_Param(0x489, 0xabf41f25);
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break;
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case 40:
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IAP_Flash_Param(0x489, 0xabf42929);
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break;
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case 80:
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IAP_Flash_Param(0x489, 0xabf8524d);
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break;
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case 120:
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default:
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IAP_Flash_Param(0x48a, 0xabfc7a6e);
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break;
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}
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__enable_irq();
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}
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