本次参加瑞萨活动，非常荣幸获得瑞萨RA4M2开发板一块。
如下图所示：
本开发板资源丰富，如下介绍。
特性：
1个复位按键
2个用户按键
2个触摸按键
3个LED
2个PMOD接口
板载USB转TTL模块，可用于串口通信和烧录
板载SWD接口，方便用户调试与下载
支持 TrustZone 的 100MHz Arm Cortex-M33
安全芯片的功能
512kB 闪存、64kB SRAM（支持奇偶校验）以及 64kB ECC SRAM
8KB 数据闪存，提供与 EEPROM 类似的数据存储功能
1kB 休眠用 SRAM
100 引脚封装
电容式触摸传感单元 (CTSU)
全速 USB 2.0，支持主机模式和设备模式
CAN 2.0B
四线 SPI
SCI（UART、简单 SPI、简单 I2C）
独立SPI/I2C 多主接口
SDHI 和 MMC
对我而言，首次接触，所以要好好学习一下。
本次实现LED驱动。
效果如下所示：
开发环境：
采用e2stduio。管脚分配采用 FSP
代码编译成功，会生成文件。
实现代码如下：
- #include "hal_data.h"
- FSP_CPP_HEADER
- void R_BSP_WarmStart(bsp_warm_start_event_t event);
- FSP_CPP_FOOTER
- /*******************************************************************************************************************//**
- * main() is generated by the RA Configuration editor and is used to generate threads if an RTOS is used. This function
- * is called by main() when no RTOS is used.
- **********************************************************************************************************************/
- void hal_entry(void)
- {
- /* TODO: add your own code here */
- while(1)
- {
- // R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_LOW);
- // R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_LOW);
- // R_BSP_SoftwareDelay(500, BSP_DELAY_UNITS_MILLISECONDS);
- //
- // R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_HIGH);
- // R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_HIGH);
- // R_BSP_SoftwareDelay(500, BSP_DELAY_UNITS_MILLISECONDS);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_LOW);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_LOW);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_HIGH);
- R_BSP_SoftwareDelay(500, BSP_DELAY_UNITS_MILLISECONDS);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_HIGH);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_LOW);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_LOW);
- R_BSP_SoftwareDelay(500, BSP_DELAY_UNITS_MILLISECONDS);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_LOW);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_LOW);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_HIGH);
- R_BSP_SoftwareDelay(500, BSP_DELAY_UNITS_MILLISECONDS);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_04, BSP_IO_LEVEL_HIGH);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_04_PIN_05, BSP_IO_LEVEL_HIGH);
- R_IOPORT_PinWrite(&g_ioport_ctrl, BSP_IO_PORT_00_PIN_02, BSP_IO_LEVEL_HIGH);
- R_BSP_SoftwareDelay(500, BSP_DELAY_UNITS_MILLISECONDS);
- }
- #if BSP_TZ_SECURE_BUILD
- /* Enter non-secure code */
- R_BSP_NonSecureEnter();
- #endif
- }
- /*******************************************************************************************************************//**
- * This function is called at various points during the startup process. This implementation uses the event that is
- * called right before main() to set up the pins.
- *
- * @param[in] event Where at in the start up process the code is currently at
- **********************************************************************************************************************/
- void R_BSP_WarmStart(bsp_warm_start_event_t event)
- {
- if (BSP_WARM_START_RESET == event)
- {
- #if BSP_FEATURE_FLASH_LP_VERSION != 0
- /* Enable reading from data flash. */
- R_FACI_LP->DFLCTL = 1U;
- /* Would normally have to wait tDSTOP(6us) for data flash recovery. Placing the enable here, before clock and
- * C runtime initialization, should negate the need for a delay since the initialization will typically take more than 6us. */
- #endif
- }
- if (BSP_WARM_START_POST_C == event)
- {
- /* C runtime environment and system clocks are setup. */
- /* Configure pins. */
- R_IOPORT_Open (&g_ioport_ctrl, g_ioport.p_cfg);
- }
- }
- #if BSP_TZ_SECURE_BUILD
- BSP_CMSE_NONSECURE_ENTRY void template_nonsecure_callable ();
- /* Trustzone Secure Projects require at least one nonsecure callable function in order to build (Remove this if it is not required to build). */
- BSP_CMSE_NONSECURE_ENTRY void template_nonsecure_callable ()
- {
- }
- #endif
下载成功提示如下：
这里采用RFP下载程序。
jilink-OB下载器连接。
实现效果如下：
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