【RA-Eco-RA2E1-48PIN-V1.0开发板试用】4、第一个程序增加adc

续前【RA-Eco-RA2E1-48PIN-V1.0开发板试用】3、第一个程序增加printf输出

运行rasc.exe打开上次位置项目，

在Stacks项中 点击Stacks->New Stack->Analog-> ADC(r_adc)。

选择0，5通道。

选择p0，p10引脚。

增加代码

volatile bool scan_complete_flag = false;



voidadc_callback (adc_callback_args_t * p_args)



{



    FSP_PARAMETER_NOT_USED(p_args);



    scan_complete_flag = true;



}

在/*

TODO:

add your own code here */

下增加：

fsp_err_t err = FSP_SUCCESS;



    /*
Initializes the module. */



    err = R_ADC_Open(&g_adc0_ctrl,
&g_adc0_cfg);



    /*
Handle any errors. This function should be defined by the user. */



    assert(FSP_SUCCESS == err);



 /*
Enable channels. */



    err = R_ADC_ScanCfg(&g_adc0_ctrl,
&g_adc0_channel_cfg);



   
assert(FSP_SUCCESS == err);
double a0,a5;



    uint16_t adc_data1=0;



   
uint16_t adc_data2=0;

在while(1)中增加

/*
Enable scan triggering from ELC events. */



           (void) R_ADC_ScanStart(&g_adc0_ctrl);



           scan_complete_flag = false;



           while (!scan_complete_flag)



           {



               /*
Wait for callback to set flag. */



           }
err =R_ADC_Read(&g_adc0_ctrl, ADC_CHANNEL_0, &adc_data1);



           assert(FSP_SUCCESS == err);



           a0=(adc_data1/4095.0)*3.3;






           err =R_ADC_Read(&g_adc0_ctrl, ADC_CHANNEL_5, &adc_data1);



           assert(FSP_SUCCESS == err);



           a5=(adc_data1/4095.0)*3.3;






           R_BSP_SoftwareDelay (20, BSP_DELAY_UNITS_MILLISECONDS);

编译：

linking...
Program Size: Code=6604 RO-data=680 RW-data=8 ZI-data=10336  
FromELF: creating hex file...
After Build - User command #1: cmd /c "start "Renesas" /w cmd /c ""E:\lst\ra0e1-20240827154516\123\new1\FSP_Project\rasc_launcher.bat" "E:\lst\ra0e1-20240827154516\123\new1\FSP_Project\rasc_version.txt" -nosplash --launcher.suppressErrors --gensmartbundle --compiler ARMv6 --devicefamily ra "E:\lst\ra0e1-20240827154516\123\new1\FSP_Project\configuration.xml"
"E:\lst\ra0e1-20240827154516\123\new1\FSP_Project\Objects\FSP_Project.axf"
2> "%TEMP%\rasc_stderr.out"""



".\Objects\FSP_Project.axf" - 0
Error(s), 47 Warning(s).



Build Time Elapsed:  00:00:33

下生成FSP_Project.hex文件。

Renesas Flash Programmer下载

重新设boot引脚

reset com 口printf输出：

Hello,
i am m                                              
culover666



          Test int: i = 100Test float: i =
1.234000Test hex: i = 0x64[app info                                               
led off][app info led on]a0: 
3.300000



                                      a5:  3.101758



                                                  
Hello, i am mculover666



                                                                          Test                                               
int: i = 100Test float: i = 1.234000Test hex: i = 0x64[app info led off][app
in                                              
fo led on]a0:  3.300000



                       a5:  3.160586



                                    Hello, i am
mculover666



                                                          
Test int: i = 100Tes                                              
t float: i = 1.234000Test hex: i = 0x64[app info led off][app info led
on]a0:                                                
3.300000



        a5: 
3.098535



                     Hello, i am mculover666



                                           
Test int: i = 100Test float: i = 1.   
                                           234000Test
hex: i = 0x64[app info led off][app info led on]a0:  3.300000



                                                                       
a5:  3.                                              
164615



      Hello, i am mculover666



                             Test int: i =
100Test float: i = 1.234000Test hex:                                               
i = 0x64[app info led off][app info led on]a0:  3.300000



                                                
        a5:  3.109817



                                                                     
Hello, i am mculover666



                                                                                            
Test int: i = 100Test float: i = 1.234000Test hex: i = 0x64[app info led
off][app info led on]a0:  3.300000



                                                                         
a5:  3.138828



                                                                                      
Hello, i am mculover666



                                                                                                             
Test int: i = 100Test float: i = 1.234000Test hex: i = 0x64[app info led
off][app info led on]a0:  3.300000



                                                                                           a5:  3.153333



                                                                                                       
Hello, i am mculover666



 Test int: i = 100Test float: i = 1.234000Test
hex: i = 0x64[app info led off][app info led on]a0:  3.300000



                                                                                                           
a5:  3.106593



                                                                                 
                                       Hello, i
am mculover666



                  Test int: i = 100Test float:
i = 1.234000Test hex: i = 0x64[app info led off][app info led on]a0:  3.300000



                                                                                                                            
a5:  3.171062

com

达到预期状态。