Microchip Taiwan - Re: 程式碼一問,使用C30 Compiler為何編譯過不了? [綜合應用]

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Ryang

Re: 程式碼一問,使用C30 Compiler為何編譯過不了?

版主

我要讀取是A/D值也可以使用PSV??

沒有必要吧! 一般 PSV 會使用在讀取 Flash 的 Table 值或 EEPROM 的值，AD 轉換後的結果是存在暫存器(RAM)裡，這樣就直接讀取就可以了，不用動到 PSV 的方式。

發表於: 2009/1/19 14:18

fak_168

Re: 程式碼一問,使用C30 Compiler為何編譯過不了?

新會員

感謝版主的指教,因為我要讀取是A/D值也可以使用PSV??

發表於: 2009/1/19 11:16

Ryang

Re: 程式碼一問,使用C30 Compiler為何編譯過不了?

版主

”無法正確地讀到固定位址的常數””

一般在　16-bit 的應用，讀取 Table　的話使用 PSV　的映射方式會比較簡單也比較好用，讀取的速度也加倍。你可以不用知道 Table　放在哪裡你只要知道 Table　的名稱就好了。　


const char _EEDATA(1) sine_table[ ] =     {128,152,176,198,217,233,245,252,255,252 

        ,245,233,217,198,176,152,128,102,78,56,37,21

           ,9,2,0,2,9,21,37,56,78,102};

CORCONbits.PSV = 1;      // 起用 PSV 功能

PSVPAG= __builtin_psvpage (sine_table);    // 設定 PSVPAG = 0xFF

while(1)

    {

        if (Index > 31) Index=0;    

        Sine_temp[I] = (sine_table[Index]); //讀取 EEPROM

        Index ++;

        if (I>255) while (1);        // 讀取完畢 ?

        I ++;

    }

詳細 Table REad/Write & PSV　的應用參考 dsPIC30F Peripheral　的教育訓練裡的 EEPROM　章節。

http://www.microchip.com.tw/modules/w ... glefile.php?cid=4&lid=229

發表於: 2009/1/14 11:07

fak_168

Re: 程式碼一問,使用C30 Compiler為何編譯過不了?

新會員

Linker 錯誤,我最後檢查一下,把程式碼以下宣告:
const unsigned int PB_Cal_Data[1024] __attribute__((aligned(1024), fillupper(0x00), space(prog), section(".cal_data"), address(0x0800)));

改為以下的宣告,compile就過了
const unsigned int PB_Cal_Data[1024] __attribute__((aligned(1024), fillupper(0x00), space(prog)));

只是程式宣告改成這樣的話,我就無法正確地讀到固定位址的常數?還有,就是在p24FJ64GA006.h檔裡也找不到這樣的宣告?

發表於: 2009/1/13 13:52

Ryang

Re: 程式碼一問,使用C30 Compiler為何編譯過不了?

版主

Linker　錯誤，會不會變數及程式碼太大了，將編譯過的程式檢查一細 Code Size 及 RAM的使用量。

發表於: 2009/1/7 15:41

fak_168

程式碼一問,使用C30 Compiler為何編譯過不了?

新會員

請教各位，以下是我的程式碼編譯後出現的錯誤訊息，可是一直編譯不過??
不曉得為什麼?
錯誤訊息為:
----------------------------------------------------------------------
Release build of project `D:\prog\product\410\en_stepless\en.mcp' started.
Wed Jan 07 10:58:27 2009
----------------------------------------------------------------------
Clean: Deleting intermediary and output files.
Clean: Deleted file "D:\prog\product\410\en_stepless\main.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\sub_adc.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\sub_dipsw.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\sub_cc1020.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\sub_RTSP.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\sub_led.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\sub_ichip.o".
Clean: Deleted file "D:\prog\product\410\en_stepless\en.mcs".
Clean: Done.
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "main.c" -o"main.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
main.c: In function '_SPI1Interrupt':
main.c:712: warning: PSV model not specified for '_SPI1Interrupt';
assuming 'auto_psv' this may affect latency
main.c: In function '_T1Interrupt':
main.c:737: warning: PSV model not specified for '_T1Interrupt';
assuming 'auto_psv' this may affect latency
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "sub_adc.c" -o"sub_adc.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
In file included from sub_adc.c:19:
sub_RTSP.h:14: warning: 'fillupper' attribute directive ignored
sub_adc.c: In function 'Read_PB':
sub_adc.c:51: warning: assignment discards qualifiers from pointer target type
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "sub_dipsw.c" -o"sub_dipsw.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "sub_cc1020.c" -o"sub_cc1020.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "sub_RTSP.c" -o"sub_RTSP.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "sub_led.c" -o"sub_led.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 -x c -c "sub_ichip.c" -o"sub_ichip.o" -I"C:\Program Files\Microchip\MPLAB C30\support\h" -I"C:\Program Files\Microchip\MPLAB C30\support\inc" -g -Wall
Executing: "C:\Program Files\Microchip\MPLAB C30\bin\pic30-gcc.exe" -mcpu=24FJ64GA006 "main.o" "sub_adc.o" "sub_dipsw.o" "sub_cc1020.o" "sub_RTSP.o" "sub_led.o" "sub_ichip.o" "C:\Program Files\Microchip\MPLAB C30\lib\libpPIC24Fxxx-coff.a" -o"en.cof" -Wl,-L"C:\Program Files\Microchip\MPLAB C30\lib",-L"C:\Program Files\Microchip\MPLAB C30\support\h",-L"C:\Program Files\Microchip\MPLAB C30\support\h\peripheral_24F",-L"C:\Program Files\Microchip\MPLAB C30\support\h\peripheral_30F_24H_33F",--script="C:\Program Files\Microchip\MPLAB C30\support\gld\p24FJ64GA006.gld",--defsym=__MPLAB_BUILD=1,-Map="en.map",--report-mem
Link Error: Could not allocate section .cal_data at 0x800
Link Error: Could not allocate program memory
Link step failed.
----------------------------------------------------------------------
Release build of project `D:\prog\product\410\en_stepless\en.mcp' failed.
Wed Jan 07 10:58:33 2009
----------------------------------------------------------------------
BUILD FAILED

但是我將主程式裡有呼叫引用到sub_adc.h & sub_adc.c 的函數和變數拿掉之後，再編譯就過了??附加檔案是我這個project的 ask.mcp檔內容.

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