PIC单片机存储不足问题 -

标题: PIC单片机存储不足问题 [打印本页]

作者: 东方木青龙 时间: 2021-12-16 09:38
标题: PIC单片机存储不足问题
用的单片机型号为PIC12F1571,代码大概300多行，删掉一个调用的比较多的函数之后，能编译成功，用的MPLAB X IDE5.05,XC8(v2.30)

interrupt_manager.c:52:: warning: (1421) ignoring argument "high_priority" used by "__interrupt" attribute/specifier
:0:: error: (1347) can't find 0x13 words (0x13 withtotal) for psect "text16" in class "CODE" (largest unused contiguous range 0xA)
Non line specific message::: advisory: (1493) updated 32-bit floating-point routines might trigger "can't find space" messages appearing after updating to this release; consider using the smaller 24-bit floating-point types
:0:: error: (1347) can't find 0x10 words (0x10 withtotal) for psect "text20" in class "CODE" (largest unused contiguous range 0xA)
:0:: error: (1347) can't find 0x9 words (0x9 withtotal) for psect "text18" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x8 words (0x8 withtotal) for psect "text15" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x7 words (0x7 withtotal) for psect "text17" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x6 words (0x6 withtotal) for psect "text14" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x4 words (0x4 withtotal) for psect "text12" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x3 words (0x3 withtotal) for psect "text8" in class "CODE" (largest unused contiguous range 0x1)

作者: 兴安xa 时间: 2021-12-16 11:16
光删除子函数不删除主函数里的调用会报错的，因为它找不到了，删除了不能保证程序的完整性还能用吗，只能精简部份，或者用外部存储，比如24C系列

作者: Y_G_G 时间: 2021-12-16 12:43
程序内存不够你就删除函数?那要这函数来干嘛?
难道你是复制别人的代码吗?
PIC的编译环境很难搞,报错的话,你很多时候是不会像Keil那样能找到的
你只有严格按照C语言标准来写

作者: 东方木青龙 时间: 2021-12-16 13:08

兴安xa 发表于 2021-12-16 11:16
光删除子函数不删除主函数里的调用会报错的，因为它找不到了，删除了不能保证程序的完整性还能用吗，只能精 ...

下面的报错，我复制百度之后，是因为存储不够的原因，如果我不用那个调用的函数程序功能就实现不了了，精简的话以我目前的水平已经到了极限了，代码真的很简单了，感谢您的建议，我会再去尝试精简代码的

作者: Y_G_G 时间: 2021-12-16 13:32
这个"CODE" 是怎么回事?不会是用了code来声明了吧?

作者: 东方木青龙 时间: 2021-12-16 14:14

Y_G_G 发表于 2021-12-16 13:32
这个"CODE" 是怎么回事?不会是用了code来声明了吧?

:0:: error: (1347) can't find 0x10 words (0x10 withtotal) for psect "text20" in class "CODE" (largest unused contiguous range 0xA)
:0:: error: (1347) can't find 0x9 words (0x9 withtotal) for psect "text18" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x8 words (0x8 withtotal) for psect "text15" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x7 words (0x7 withtotal) for psect "text17" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x6 words (0x6 withtotal) for psect "text14" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x4 words (0x4 withtotal) for psect "text12" in class "CODE" (largest unused contiguous range 0x1)
:0:: error: (1347) can't find 0x3 words (0x3 withtotal) for psect "text8" in class "CODE" (largest unused contiguous range 0x1)

这些错误表示ROM （=闪存）内存不足。
这意味着正在使用的 PIC 的代码太多

作者: Y_G_G 时间: 2021-12-16 14:52

东方木青龙发表于 2021-12-16 14:14
:0:: error: (1347) can't find 0x10 words (0x10 withtotal) for psect "text20" in class "CODE" (larg ...

搞半天咋就不把代码文件上传呢,我去运行试一下

作者: 东方木青龙 时间: 2021-12-17 08:41

Y_G_G 发表于 2021-12-16 12:43
程序内存不够你就删除函数?那要这函数来干嘛?
难道你是复制别人的代码吗?
PIC的编译环境很难搞,报错的话, ...

我删除函数是因为排除编译器的问题，如果它什么都不写也报这个错误呢，是吧？程序确实不是我写的，我只是要改程序而已

作者: 东方木青龙 时间: 2021-12-17 08:42

Y_G_G 发表于 2021-12-16 14:52
搞半天咋就不把代码文件上传呢,我去运行试一下

分块的，行我给弄一个文件里面

作者: 东方木青龙 时间: 2021-12-17 08:58
#pragma config FOSC = INTOSC // ->INTOSC oscillator; I/O function on CLKIN pin
#pragma config WDTE = ON // Watchdog Timer Enable->WDT enabled
#pragma config PWRTE = OFF // Power-up Timer Enable->PWRT disabled
#pragma config MCLRE = ON // MCLR Pin Function Select->MCLR/VPP pin function is MCLR
#pragma config CP = OFF // Flash Program Memory Code Protection->Program memory code protection is disabled
#pragma config BOREN = ON // Brown-out Reset Enable->Brown-out Reset enabled
#pragma config CLKOUTEN = OFF // Clock Out Enable->CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin

// CONFIG2
#pragma config WRT = OFF // Flash Memory Self-Write Protection->Write protection off
#pragma config PLLEN = OFF // PLL Enable->4x PLL disabled
#pragma config STVREN = ON // Stack Overflow/Underflow Reset Enable->Stack Overflow or Underflow will cause a Reset
#pragma config BORV = LO // Brown-out Reset Voltage Selection->Brown-out Reset Voltage (Vbor), low trip point selected.
#pragma config LPBOREN = OFF // Low Power Brown-out Reset enable bit->LPBOR is disabled
#pragma config LVP = ON // Low-Voltage Programming Enable->Low-voltage programming enabled

#include <xc.h>
//1. big board vishy mos
//2. small board Ao mos
#include "mcc.h"
static uint16_t adc_data=0;
static uint8_t adc_voltage=0;
static uint16_t pwm_data0=0;
static uint16_t power_data=0;
static uint16_t power_voltage=0;

uint16_t timer_100ms_flag=0;
uint8_t timer_10ms_flag=0;

void delay_proces (uint32_t delaytime)
{
   uint32_t cnt;
   cnt=delaytime;
   while(cnt--)
   {
      CLRWDT();
   }
}
void adc_process(void)
{
uint16_t k;
uint8_t i;
k=0;
for (i=0;i<16;i++)
{
   k+=ADC1_GetConversion(3);
   CLRWDT();
      NOP();NOP();NOP();NOP();NOP();NOP();NOP();
}
adc_data = k >> 4;
}
void power_process(void)
{
uint32_t kk;
kk = (uint32_t)adc_data * (uint32_t)33 * (uint32_t)25 * (uint32_t)10 / (uint32_t)1024;
power_voltage = (uint16_t)(kk+80) / 10;
}

void get_pwm_data(void)
{
uint32_t kk;//,kkm;
if(timer_100ms_flag < 50)
{
      kk = (uint32_t)((uint32_t)58 * (uint32_t)799);
      kk = ((uint32_t)kk / (uint32_t)power_voltage);
      //kk=((uint32_t)kk*(uint32_t)20/(uint32_t)10)+((uint32_t)power_voltage/90); //34W
      kk = ((uint32_t)kk * (uint32_t)16 / (uint32_t)10) + ((uint32_t)power_voltage / 90); //34W
      pwm_data0 = (uint16_t)kk + 2;
      if( pwm_data0 > 799 )
      {
         pwm_data0 = 800;                   //full power pwm
      }
      if(power_voltage < 70)
      {
         pwm_data0 = 0;
         kk = (power_voltage & 0x0f);
         delay_proces(kk * 16667);
         timer_100ms_flag = 0;
      }
      else if(power_voltage < 120)
      {
         pwm_data0 = 800;                         //full power pwm
      }
}
else
{
      kk = (uint32_t)((uint32_t)131 * (uint32_t)799);
      kk = ((uint32_t)kk / (uint32_t)power_voltage) * (uint32_t)23 / (uint32_t)100 * (uint32_t) 2;
      if(power_voltage < 50)
      {
         if(timer_10ms_flag > 6)
         {
            PWM3_DutyCycleSet(0);
         }
      }
      else
      {
         timer_10ms_flag = 0;
         if( power_voltage < 122)
         {
               kk = kk + 3 + 2 + 2;
         }
         else if( power_voltage < 160)
         {
            kk = kk + 2 + 2;
         }
         else if( power_voltage < 246)
         {
            kk = kk + 2;
         }
         else if(power_voltage > 460 && power_voltage < 730)
         {
            kk = kk + 4;
         }
         else if(power_voltage >= 730)
         {
            pwm_data0=0;
         }
         pwm_data0=kk+9; //?????????????
         if(pwm_data0>799)
         {
            pwm_data0=800;                      //full power pwm
         }
      }
}
}
void main(void)
{
SYSTEM_Initialize();
INTERRUPT_GlobalInterruptEnable();
INTERRUPT_PeripheralInterruptEnable();

while((power_voltage < 84) || (power_voltage > 730))
{
   adc_process();                         //gather 16 adc-data,get the average
   PWM3_DutyCycleSet(pwm_data0);                      //get the power_voltage
   CLRWDT();
}
timer_100ms_flag = 0;
while(timer_100ms_flag < 2)
{
      CLRWDT();
}
   //timer_2ms_flag=1;
timer_100ms_flag = 0;
while (1)
{
      CLRWDT();
      adc_process();
      power_process();
      get_pwm_data();
      PWM3_DutyCycleSet(pwm_data0);
}
}

作者: wojiaoguogai 时间: 2021-12-17 09:45
就这么一点应该不至于

作者: MCU_FANS 时间: 2021-12-17 09:54

东方木青龙发表于 2021-12-17 08:58
#pragma config FOSC = INTOSC // ->INTOSC oscillator; I/O function on CLKIN pin
#pragma config WD ...

PIC12F1571这颗料没有硬件乘法器，你代码中有一大堆大字节变量乘除法，非常占空间；另外你的XC8是不是lite模式的？

作者: 东方木青龙 时间: 2021-12-17 16:44

MCU_FANS 发表于 2021-12-17 09:54
PIC12F1571这颗料没有硬件乘法器，你代码中有一大堆大字节变量乘除法，非常占空间；另外你的XC8是不是lit ...

没错，是这个原因
我将void get_pwm_data(void)函数中的大字节变量乘除法屏蔽之后，编译能通过
/*  kk = ((uint32_t)kk / (uint32_t)power_voltage);

      kk = ((uint32_t)kk * (uint32_t)16 / (uint32_t)10) + ((uint32_t)power_voltage / 90); //34W
   */

作者: 东方木青龙 时间: 2021-12-17 16:54

MCU_FANS 发表于 2021-12-17 09:54
PIC12F1571这颗料没有硬件乘法器，你代码中有一大堆大字节变量乘除法，非常占空间；另外你的XC8是不是lit ...

我把所有常数的乘除法运算算好之后，再写入代码，就可以编译成功了，感谢大佬

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