拿到RA4L1开发板有很久了，之前已经完成了开箱，点灯，串口打印，JlinkRTT打印，Coremark跑分测试，按键功能，基本功能都差不多写完了，今天就来写下段码LCD屏的点亮操作！！！！
1。打开原理图
上面就是RA4L1板子上的段码屏接口图，总共有4个COM端，19个SED端。采用交流AC点亮断码屏。
2。断码屏的细节如下：
就是上面3张图中对应的关系，核心是下面
当我们要电流T1时，只需要同时给COM1和SEG1加高电平导通，就能显示T1，当我们要显示数字3时，可以看到显示3，就是依次点亮最左边的1A,1B,1G,1C,1D这5个片段，如下图红线所示
显示其它数字和符号原理和我上面是一样的，大家自己模仿我的操作实践即可！！！
*附件：GDC0570S(T)P15V3B.pdf
上面的PDF就是瑞萨RA4L1对应的断码屏，我这里无私分享给大家！！！前面的人也点过断码屏，但是它们都没有分享这个给大家，导致大家看的云里雾里！！！！
好了，开始将重点吧。
我就不重新建立工程了，直接在我之前用的按键LED工程里操作，给大家展示！
3。打开瑞萨的smart 配置工具软件
首先配置好时钟，大家直接对照我的时钟进行配置。
然后再图形组件里添加这个
照我的参数配置，不要修改
下面是4个COM和19个SEG口
然后生成代码
打开KEIL工程，发现已经修改了，需要编译工程
在主函数里添加如下代码
#include "hal_data.h"
#include "usart9.h"
#include "RTT.h"
#include "led.h"
#include <stdio.h>
#include <stdlib.h>
#include "coremark.h"
#include "ebtn_app.h"
FSP_CPP_HEADER
void R_BSP_WarmStart(bsp_warm_start_event_t event);
FSP_CPP_FOOTER
void coremark_main(void);
volatile uint8_t button_count = 0;
/*******************************************************************************************************************//**
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 */
fsp_err_t err;
/* Open SLCDC driver */
err = R_SLCDC_Open(&g_slcdc0_ctrl, &g_slcdc0_cfg);
/* Handle any errors. This function should be defined by the user. */
assert(FSP_SUCCESS == err);
/* When using internal boost mode this delay is required to allow the boost circuit to charge. See RA4M1 User's
Manual (R01UH0887EJ0100) 8.2.18 "Segment LCD Source Clock Control Register (SLCDSCKCR)" for details. */
R_BSP_SoftwareDelay(5, BSP_DELAY_UNITS_MILLISECONDS);
/* Start SLCDC output */
err = R_SLCDC_Start(&g_slcdc0_ctrl);
assert(FSP_SUCCESS == err);
/* Set Display Area of SLCDC driver.*/
// err = R_SLCDC_SetDisplayArea(&g_slcdc0_ctrl, SLCDC_DISP_A);
// assert(FSP_SUCCESS == err);
//准备并写入段显示数据,第一个数码管显示1
uint8_t segment_data_num1[] = {
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x6
};
R_SLCDC_Write(&g_slcdc0_ctrl, 0, segment_data_num1, sizeof(segment_data_num1));
R_BSP_SoftwareDelay (500, BSP_DELAY_UNITS_MILLISECONDS);
//准备并写入段显示数据,第二个数码管显示2
uint8_t segment_data_num2[] = {
0xE,0x3};
R_SLCDC_Write(&g_slcdc0_ctrl, 15, segment_data_num2, sizeof(segment_data_num2));
R_BSP_SoftwareDelay (500, BSP_DELAY_UNITS_MILLISECONDS);
//准备并写入段显示数据,第三个数码管显示3
R_SLCDC_Modify(&g_slcdc0_ctrl, 22, 0xA, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 23, 0x7, 0xF);
R_BSP_SoftwareDelay (500, BSP_DELAY_UNITS_MILLISECONDS);
//准备并写入段显示数据,第四个数码管显示4
R_SLCDC_Modify(&g_slcdc0_ctrl, 24, 0x3, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 29, 0x6, 0xF);
R_BSP_SoftwareDelay (500, BSP_DELAY_UNITS_MILLISECONDS);
//准备并写入段显示数据,第五个数码管显示5
R_SLCDC_Modify(&g_slcdc0_ctrl, 30, 0xB, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 39, 0x5, 0xF);
R_BSP_SoftwareDelay (500, BSP_DELAY_UNITS_MILLISECONDS);
//准备并写入段显示数据,第六个数码管显示6
R_SLCDC_Modify(&g_slcdc0_ctrl, 40, 0xF, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 41, 0x5, 0xF);
R_BSP_SoftwareDelay (500, BSP_DELAY_UNITS_MILLISECONDS);
UART9_Init();
hal_systick_init();
ebtn_APP_Key_INIT();
printf("\r\n欢迎来到瑞萨电子\r\n");
printf("很高兴试用RA4L1开发板********\r\n");
printf("串口输出打印 波特率115200\r\n\r\n");
while (1)
{
/* USER CODE END WHILE */
//HAL_Delay(300);
/* USER CODE BEGIN 3 */
switch(button_count)
{
case 1:
LED1_LED2_ON();
printf("LED1 LED2 同时亮\r\n");
break;
case 2:
LED1_LED2_1();
printf("LED1先亮200ms 熄灭 然后LED2亮200ms 熄灭 重复\\r\\n");
break;
case 3:
LED1_LED2_2();
printf("LED1 LED2同时亮200ms 熄灭200ms 重复\\r\\n");
break;
case 4:
led_1_flicker();
printf("led1闪烁\\r\\n");
break;
case 5:
led_2_flicker();
printf("led2闪烁\\r\\n");
break;
case 6:
led_3_flicker();
printf("led3闪烁\\r\\n");
break;
default:
LED1_LED2_OFF();
//printf("LED1 LED2 同时熄灭\\r\\n");
break;
}
/*
//清空0-41段
uint8_t segment_data_num_off[41+1] ;
for(int i=0;i<=41;i++)
segment_data_num_off[i]=0;
R_SLCDC_Write(&g_slcdc0_ctrl, 0, segment_data_num_off, sizeof(segment_data_num_off));
R_BSP_SoftwareDelay (1000, BSP_DELAY_UNITS_MILLISECONDS);
//全部点亮
uint8_t segment_data_num_on[41+1] ;
for(int i=0;i<=41;i++)
segment_data_num_on[i]=0xf;
R_SLCDC_Write(&g_slcdc0_ctrl, 0, segment_data_num_on, sizeof(segment_data_num_on));
R_BSP_SoftwareDelay (1000, BSP_DELAY_UNITS_MILLISECONDS);
//准备并写入段显示数据,第一个数码管显示1
R_SLCDC_Modify(&g_slcdc0_ctrl, 3, 0x0, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 11, 0x6, 0xF);
//准备并写入段显示数据,第二个数码管显示2
R_SLCDC_Modify(&g_slcdc0_ctrl, 15, 0xE, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 16, 0x3, 0xF);
//准备并写入段显示数据,第三个数码管显示3
R_SLCDC_Modify(&g_slcdc0_ctrl, 22, 0xA, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 23, 0x7, 0xF);
//准备并写入段显示数据,第四个数码管显示4
R_SLCDC_Modify(&g_slcdc0_ctrl, 24, 0x3, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 29, 0x6, 0xF);
//准备并写入段显示数据,第五个数码管显示5
R_SLCDC_Modify(&g_slcdc0_ctrl, 30, 0xB, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 39, 0x5, 0xF);
//准备并写入段显示数据,第六个数码管显示6
R_SLCDC_Modify(&g_slcdc0_ctrl, 40, 0xF, 0xF);
R_SLCDC_Modify(&g_slcdc0_ctrl, 41, 0x5, 0xF);
R_BSP_SoftwareDelay (1000, 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(&IOPORT_CFG_CTRL, &IOPORT_CFG_NAME);
#if BSP_CFG_SDRAM_ENABLED
/* Setup SDRAM and initialize it. Must configure pins first. */
R_BSP_SdramInit(true);
#endif
}
}
#if BSP_TZ_SECURE_BUILD
FSP_CPP_HEADER
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 ()
{
}
FSP_CPP_FOOTER
#endif
上面的代码就是初始化LCD模块，并且在6个数码管里依次写入123456，间隔500ms
然后烧录代码到板子
详情看视频
更多回帖
