【瑞萨RA4系列开发板体验】+ 第三章 RTT适配

范成功

2022-12-2 15:37:20

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rtt下载

下载的是最新发布的版本：

https://github.com/RT-Thread/rt-thread/archive/refs/tags/v4.1.1.zip

创建工程

解压压缩包
复制前面创建的Blink工程到<rt-thread目录>/bsp/renesas目录下
重命名为ra4m2-eco
从隔壁ra6m4-cpk复制board文件夹、template.uvprojx、SConstruct、SConscript、Kconfig、rtconfig.h、rtconfig.py
打开template.uvprojx，然后修改设备为R7FA4M2AD，然后关闭，自动更新tmeplate.uvprojx
通过env运行scons --target=mdk5生成project.uvprojx
打开project.uvprojx进行一次编译
到bsp\renesas\libraries\HAL_Drivers\config里，复制ra6m4并重命名为ra4m2
在drv_config.h中添加如下代码

#ifdef SOC_SERIES_R7FA4M2
#include "ra4m2/uart_config.h"

#ifdef BSP_USING_ADC
#include "ra4m2/adc_config.h"
#endif

#ifdef BSP_USING_DAC
#include "ra4m2/dac_config.h"
#endif

#ifdef BSP_USING_PWM
#include "ra4m2/pwm_config.h"
#endif

#ifdef BSP_USING_CAN
#include "ra4m2/can_config.h"
#endif
#endif/* SOC_SERIES_R7FA4M2 */

在RA Smart Config中配置串口9，并添加user_uart9_callback函数

适配系统

修改_sys_tmpnam函数

#if __ARMCC_VERSION > 6190000
void _sys_tmpnam(char *name, int fileno, unsigned maxlength)
{
    rt_snprintf(name, maxlength, "tem%03d", fileno);
}
#else
int _sys_tmpnam(char *name, int fileno, unsigned maxlength)
{
    rt_snprintf(name, maxlength, "tem%03d", fileno);
    return 1;
}
#endif

hal_entry函数修改为

#include "rtthread.h"
#include "drivers/pin.h"
#include "bsp_api.h"

void hal_entry (void)
{
    rt_pin_mode(BSP_IO_PORT_04_PIN_04, PIN_MODE_OUTPUT);

    while (1)
    {
        rt_pin_write(BSP_IO_PORT_04_PIN_04, !rt_pin_read(BSP_IO_PORT_04_PIN_04));
        rt_thread_mdelay(1000);
    }
}

修改console，默认是uart，修改为uart9，通过env里面menuconfig进行修改

修改bsp\renesas\libraries\HAL_Drivers\drv_usart_v2.c内的相关函数。

static inline void ra_uart_putc_1(struct ra_uart *uart, char c)
{
    sci_uart_instance_ctrl_t *p_ctrl = (sci_uart_instance_ctrl_t *)uart->config->p_api_ctrl;
    p_ctrl->p_reg->TDR = c;
    while ((p_ctrl->p_reg->SSR_b.TEND) == 0);
}
static int ra_uart_putc(struct rt_serial_device *serial, char c)
{
    struct ra_uart *uart;
    RT_ASSERT(serial != RT_NULL);

    uart = rt_container_of(serial, struct ra_uart, serial);
    RT_ASSERT(uart != RT_NULL);

    ra_uart_putc_1(uart, c);

    return RT_EOK;
}
rt_size_t ra_uart_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, rt_uint32_t tx_flag)
{
    struct ra_uart *uart;

    RT_ASSERT(serial != RT_NULL);
    RT_ASSERT(buf != RT_NULL);
    uart = rt_container_of(serial, struct ra_uart, serial);

    for(int i=0;i<size; i++) {
        ra_uart_putc_1(uart, buf[i]);
    }
    return size;
}