原创【瑞萨 RA6E2】+按键LED+串口中断收发+内部虚拟EEPROM

 2023-7-24 13:37  604 3 3 分类: MCU/ 嵌入式文集: 瑞萨

硬件：瑞萨RA6E2

软件：FSP 4.0.5 / e2studio （需要使用4.0.5才可以选择RA6E2的芯片R7FA6E2BB3CFM）

资料参考：

新建工程流程：

文件->新建->瑞萨C/C++项目->Renesas RA

选择保存工程的路径

选择芯片型号

一· 按键LED

LED灯和按键原理图

LED灯引脚配置

按键引脚配置

stack配置

#define USER_SW_IRQ_NUMBER ( 10 )
volatile bool g_sw_press = false;
void hal_entry(void)
{
/* TODO: add your own code here */
bsp_io_level_t led_current_state = (bsp_io_level_t) 0x01;
/* 打开外部中断*/
R_ICU_ExternalIrqOpen(&g_external_irq0_ctrl, &g_external_irq0_cfg);</p><p>/*使能外部中断*/
R_ICU_ExternalIrqEnable(&g_external_irq0_ctrl);
while (true)
{
/* Toggle user LED when user pushbutton is pressed*/
if(true == g_sw_press)
{
/* Clear user pushbutton flag */
g_sw_press = false;
/* Read user LED pin */
R_IOPORT_PinRead(&g_ioport_ctrl, LED1, &led_current_state);
/* Reverse LED pin state*/
led_current_state ^= BSP_IO_LEVEL_HIGH;
/* Toggle user LED */
R_IOPORT_PinWrite(&g_ioport_ctrl, LED1, led_current_state);
R_IOPORT_PinRead(&g_ioport_ctrl, LED2, &led_current_state);
led_current_state ^= BSP_IO_LEVEL_HIGH;
R_IOPORT_PinWrite(&g_ioport_ctrl, LED2, led_current_state);
}
}
#if BSP_TZ_SECURE_BUILD
/* Enter non-secure code */
R_BSP_NonSecureEnter();
#endif
}
void irq_ep_callback(external_irq_callback_args_t *p_args)
{
if (USER_SW_IRQ_NUMBER == p_args->channel)
{
g_sw_press = true;
}
}

二· 串口收发

串口原理图

注意：需要用跳帽连接如下位置

串口配置

引脚配置

代码参考的是野火

SCI UART——串口通信
三· 内部虚拟EEPROM使用
RA6E2有4KB 虚拟EEPROM，也就是4096字节，但是由于使用rm_vee_flash组件实际只有2028字节可以使用

void rm_vee_example();
/* 用于写数据完成*/
volatile bool callback_called = false;
/* 内部大小是4kb, 每个字节占用2byte大小，理论存储2048字节，
* 每一条记录需要8字节的数据的开头和结尾，占用16字节，所以只有2032字节可以使用，还要预留Padding 3字节
*/
/* 写入数据的长度*/
#define DATA_SIZE ( 2028 )
/* Record ID 用来记录存取的数据 0-15*/
#define ID_TESTDATA ( 1U )
/* Example data Structure*/
uint8_t data[DATA_SIZE] = {0};
uint8_t data_recv[DATA_SIZE] = { 0 };
uint8_t data_recv1[DATA_SIZE] = { 0 };
uint32_t length = DATA_SIZE;
/*******************************************************************************************************************//**
* @brief 这个函数擦除VEEPROM使用的整个数据闪存。
* @param[IN] None
* @retval FSP_SUCCESS 格式化成功除
* @retval FSP_SUCCESSFSP_SUCCESS之外的任何其他错误码
**********************************************************************************************************************/
fsp_err_t vee_format_operation(void)
{
fsp_err_t err = FSP_SUCCESS;
uint8_t ref_data = 0;
rm_vee_status_t p_status;
/* Start a manual format operation.*/
err = RM_VEE_FLASH_Format(&g_vee0_ctrl, &ref_data);
if(FSP_SUCCESS != err)
{
return err;
}
/* Get the current status of the driver.*/
err = RM_VEE_FLASH_StatusGet(&g_vee0_ctrl, &p_status);
if(FSP_SUCCESS != err)
{
return err;
}
/* Compare Last ID written with Default ID.*/
if (ID_TESTDATA == p_status.last_id)
{
}
else
{
err = FSP_ERR_NOT_ERASED;
}
return err;
}
void rm_vee_example()
{
int i = 0;
uint8_t *data_ptr1 = 0;
uint8_t *data_ptr2 = 0;
/* 打开 Virtual EEPROM Module. */
fsp_err_t err = RM_VEE_FLASH_Open(&g_vee0_ctrl, &g_vee0_cfg);
assert(FSP_SUCCESS == err);
/* 格式化EEPROM*/
// vee_format_operation();
/* 先读一次，表示断电后读取数据，验证数据的正确性*/
err = RM_VEE_FLASH_RecordPtrGet(&g_vee0_ctrl, ID_TESTDATA,
(uint8_t **) &data_ptr1, &length);
for(i = 0; i < DATA_SIZE; ++i)
data_recv1[i] = *data_ptr1++;
length = DATA_SIZE;
/* 填充数据*/
for (i = 0; i < DATA_SIZE; ++i)
{
data[i] = (uint8_t)i;
}
/* Write the pressure data to a Virtual EEPROM Record. */
err = RM_VEE_FLASH_RecordWrite(&g_vee0_ctrl, ID_TESTDATA,
(uint8_t *)data, length);
assert(FSP_SUCCESS == err);
/* Wait for the Virtual EEPROM callback to indicate it finished writing data. */
while (false == callback_called);
/* Get a pointer to the record that is stored in data flash. */
err = RM_VEE_FLASH_RecordPtrGet(&g_vee0_ctrl, ID_TESTDATA,
(uint8_t **) &data_ptr2, &length);
assert(FSP_SUCCESS == err);
for(i = 0; i < DATA_SIZE; ++i)
data_recv[i] = *data_ptr2++;
//读取数据与写入数据一致则点亮蓝色LED灯
R_IOPORT_PinWrite(&g_ioport_ctrl, LED1, BSP_IO_LEVEL_LOW);
for (i = 0; i < DATA_SIZE; ++i)
{
if (data[i] != data_recv[i])
break;
}
if (i == DATA_SIZE)
R_IOPORT_PinWrite(&g_ioport_ctrl, LED1, BSP_IO_LEVEL_HIGH);
/* Close the Virtual EEPROM Module. */
err = RM_VEE_FLASH_Close(&g_vee0_ctrl);
assert(FSP_SUCCESS == err);
}
void vee_callback(rm_vee_callback_args_t *p_args)
{
FSP_PARAMETER_NOT_USED(p_args);
callback_called = true;
}