【小凌派RK2206开发板试用体验】小凌派串口控制迪文屏，迪文屏使用2各text控件和1个图标控件

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演示1

前言：因2个原因导致迟迟没有出来想要的效果。原因1：迪文屏的中文字库问题，对CFG文件及FLASH的分配不熟，导致icl文件覆盖了字库文件，在迪文论坛发帖解决。原因2：串口线不能2节连接，我测试一直2节杜邦线连接，导致rk2206发不出数据，用串口demo测试，只有一节杜邦线电脑才能接到数据，弄了一节将两个板子连接终于可以了。

迪文屏方面：
1、用dgus软件设计的欢迎使用界面中生成0号字库和GBK字库，如图1所示，点击DGUS字库，出现如图2所示，生成0号ASCII字库。

图1 dgus字库生成

图2 生成0号字库
2、下面就来生成GBK汉字库，如图3和图4所示，生成的24宋体24.bin字库。

图3 GBK字库

图4生成汉字库gbk
3、接下来，新建GUI工程，选一张480*854的背景图，如图5所示，保存位置确定。

图5 新建GUI工程
4、网上找了9张图标，其中自己用位图编辑了一遍，想多大自己设置即可，用DWIN ICL生成工具生成图标icl，如图6所示

图6 生成图标icl

图7 导入生成

5、生成背景icl一样。注意：软件默认背景图为32.icl，生成CFG文件时需要修改。这个根据屏的flash大小设置，我的屏只有8M，因此最大为30，32超出了出现了问题。
6、在背景图上放置一个图标控件和2个text控件，如图8所示，text地址设置2000，另一个设置2064。设置TEXT的属性，ASCII选择0号字库，汉字库选24号字库，编码选择GBK编码，后面的X和Y点阵设置为24点阵。这个点阵数根据自己字库生成的点阵设置。使用出厂的字库，则分别为0号字库和12汉字库。配置为0和12即可。

图8 放置显示控件

图9 text设置属性
7、设置变量图标显示属性，如图10所示，从0开始到8共9个变量图标。

图10 变量图标显示设置
8、最后生成即可。

T5L51方面：
1、因我刷过T5L51，所以串口2调试协议不通，只能重刷出厂程序或者自己写程序。我自己写的程序，在熊家余老师的串口程序基础上写自己的接收代码，main函数如下代码：

#include "sys.h"
#include "uart2.h"
#include "string.h"
#define FIRST_TXT "手势结果：\0\0" //必须以两个字节的0x00或者两个字节的0xFF为文本结束标记
void main(void)
{
u16 len;
s16 ges;
u8 text_buf[32]={0};
u16 ic_sta;//存储ICON值
sys_init();//系统初始化
sys_write_vp(0x2000,FIRST_TXT,sizeof(FIRST_TXT)/2+1);//给第一个文本显示控件设置文本内容
uart2_init(115200);//初始化串口2
while(1)
{
if(uart2_rx_sta&UART2_PACKET_OK)//接受到了串口数据包
{
len = uart2_rx_sta&UART2_PACKET_LEN;//得到串口数据包的长度,不包含"rn"或者'n'结束符的长度
ges = uart2_buf[0]+uart2_buf[1]*256;
switch(ges)
{
case 1:
ic_sta = 0;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_UP:0x%x",ges);
break;
case 2:
ic_sta = 1;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_DOWN:0x%x",ges);
break;
case 4:
ic_sta = 2;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_LEFT:0x%x",ges);
break;
case 8:
ic_sta = 3;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_RIGHT:0x%x",ges);
break;
case 16:
ic_sta = 4;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_FORWARD:0x%x",ges);
break;
case 32:
ic_sta = 5;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_BACKWARD:0x%x",ges);
break;
case 64:
ic_sta = 6;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_CLOCKWISE:0x%x",ges);
break;
case 128:
ic_sta = 7;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_COUNT_CLOCKWISE:0x%x",ges);
break;
case 256:
ic_sta = 8;
sys_write_vp(0x1000,(u8*)&ic_sta,1);
sprintf(text_buf,"GES_WAVE:0x%x",ges);
break;
default:
break;
}
len = strlen(text_buf);
text_buf[len++] = 0;
text_buf[len++] = 0;
sys_write_vp(0x2064,text_buf,len/2+1);//同时把数据包显示到界面上
uart2_rx_sta = 0;//清0代表处理掉了此串口包
}
}
}

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小凌派方面：
根据手势demo将uart的demo加入到手势demo.rar中，如下所示

/*
* Copyright (c) 2022 FuZhou Lockzhiner Electronic Co., Ltd. All rights reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include
#include "los_task.h"
#include "ohos_init.h"
#include "lz_hardware.h"
#include "e53_gesture_sensor.h"
/* E53模块中
* UART0_RX_M0 -> GPIO0_B6
* UART0_TX_M0 -> GPIO0_B7
*/
#define UART_ID 0
unsigned short getCRC16(unsigned char *ptr,unsigned char len)
{
unsigned char i;
unsigned short crc = 0xFFFF;
if(ptr==0)
{
return 0;
}
if(len==0)
{
len = 1;
}
//if(len<=255)
{
while(len--)
{
crc ^= *ptr;
for(i=0; i<8; i++)
{
if(crc&1)
{
crc >>= 1;
crc ^= 0xA001;
}
else
crc >>= 1;
}
ptr++;
}
}
return(crc);
}
void uart0_init(void)
{
unsigned int ret;
UartAttribute attr;
LzUartDeinit(UART_ID);
attr.baudRate = 115200;
attr.dataBits = UART_DATA_BIT_8;
attr.pad = FLOW_CTRL_NONE;
attr.parity = UART_PARITY_NONE;
attr.rxBlock = UART_BLOCK_STATE_NONE_BLOCK;
attr.stopBits = UART_STOP_BIT_1;
attr.txBlock = UART_BLOCK_STATE_NONE_BLOCK;
PinctrlSet(GPIO0_PB6, MUX_FUNC2, PULL_KEEP, DRIVE_LEVEL2);
PinctrlSet(GPIO0_PB7, MUX_FUNC2, PULL_KEEP, DRIVE_LEVEL2);
ret = LzUartInit(UART_ID, &attr);
if (ret != LZ_HARDWARE_SUCCESS)
{
printf("%s, %d: LzUartInit(%d) failed!n", __FILE__, __LINE__, ret);
return;
}
return;
}
void e53_gs_process(void *arg)
{
unsigned int ret = 0;
unsigned int i=0;
unsigned short flag = 0;
unsigned short rc = 0;
unsigned char tubiao[16] = {0};
unsigned char tubiao_str[48] = {0};
e53_gs_init();
uart0_init();
ret = LzUartWrite(UART_ID, tubiao, 4);
if (ret != LZ_HARDWARE_SUCCESS)
{
printf("%s, %d: LzUartInit(%d) failed!n", __FILE__, __LINE__, ret);
return;
}
while (1)
{
ret = e53_gs_get_gesture_state(&flag);
if (ret != 0)
{
printf("Get Gesture Statu: 0x%xn", flag);
if (flag & GES_UP)
{
printf("tUpn");
}
if (flag & GES_DOWM)
{
printf("tDownn");
}
if (flag & GES_LEFT)
{
printf("tLeftn");
}
if (flag & GES_RIGHT)
{
printf("tRightn");
}
if (flag & GES_FORWARD)
{
printf("tForwardn");
}
if (flag & GES_BACKWARD)
{
printf("tBackwardn");
}
if (flag & GES_CLOCKWISE)
{
printf("tClockwisen");
}
if (flag & GES_COUNT_CLOCKWISE)
{
printf("tCount Clockwisen");
}
if (flag & GES_WAVE)
{
printf("tWaven");
}
e53_gs_led_up_set((flag & GES_UP) ? (1) : (0));
e53_gs_led_down_set((flag & GES_DOWM) ? (1) : (0));
e53_gs_led_left_set((flag & GES_LEFT) ? (1) : (0));
e53_gs_led_right_set((flag & GES_RIGHT) ? (1) : (0));
e53_gs_led_forward_set((flag & GES_FORWARD) ? (1) : (0));
e53_gs_led_backward_set((flag & GES_BACKWARD) ? (1) : (0));
e53_gs_led_cw_set((flag & GES_CLOCKWISE) ? (1) : (0));
e53_gs_led_ccw_set((flag & GES_COUNT_CLOCKWISE) ? (1) : (0));
e53_gs_led_wave_set((flag & GES_WAVE) ? (1) : (0));
tubiao[0] = flag;
tubiao[1] = (flag&0xff00)>>8;
tubiao[2] = 'r';
tubiao[3] = 'n';
printf("tubiao：n");
for(i=0;i<4;i++) {
sprintf(tubiao_str+i*3, "%02X ", tubiao[i] & 0xFF);
}
printf("DOWN HEX: %s", tubiao_str);
printf("n");
ret = LzUartWrite(UART_ID, tubiao, 4);
if (ret != LZ_HARDWARE_SUCCESS)
{
printf("%s, %d: LzUartInit(%d) failed!n", __FILE__, __LINE__, ret);
return;
}
}
else
{
/* 如果没有数据，则多等待 */
LOS_Msleep(100);
}
}
}
void e53_gs_example()
{
unsigned int thread_id;
TSK_INIT_PARAM_S task = {0};
unsigned int ret = LOS_OK;
task.pfnTaskEntry = (TSK_ENTRY_FUNC)e53_gs_process;
task.uwStackSize = 2048;
task.pcName = "e53 getsture sensor process";
task.usTaskPrio = 24;
ret = LOS_TaskCreate(&thread_id, &task);
if (ret != LOS_OK)
{
printf("Falied to create Task_One ret:0x%xn", ret);
return;
}
}
APP_FEATURE_INIT(e53_gs_example);

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测试方面：测试的时候总是控制不了，用小凌派的串口发给电脑串口，也没有。不应该，人家厂家肯定没问题。本来2节杜邦线，改成了1节杜邦线，可以了。
测试效果如视频所示。

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【小凌派RK2206开发板试用体验】小凌派串口控制迪文屏，迪文屏使用2各text控件和1个图标控件

演示1

演示2

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