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Re: Microchip CPU to read SD card file content example
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版主
 
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Memory Model 換成 Large Mode.
Attach file:  (0.00 KB)
發表於: 2009/12/21 13:49
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Re: Microchip CPU to read SD card file content example
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初級會員
 
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Sorry! Correction as follows:
PIC24FJ128 is about 80KB Font data,PIC24FJ256 is twice. Use PIC24FJ128 link map 中取出 section .prog address 0xd44 length (PC units) 0xb0a0 length (bytes) (dec) 0x108f0 (67824) CPU程式空間佔用不是0xb0a0而是0x108f0(1.5倍)? PIC32MX460好像可以放入170KB字型檔. 不知是否有工具板可驗証?
發表於: 2009/12/21 13:49
Edited by alextek on 2009年12月21日 14:09:58
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Re: Microchip CPU to read SD card file content example
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資深會員
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>>測試過PIC24FJ256GA105,雖說256KB,但只能放約80KB字型..
不知為何會有如此問題!! 是什麼限制呢!! 可否告知,以增見聞.謝謝!! (是宣告, link file, C語言, 還是主程式也很大....!!??)
發表於: 2009/12/21 11:50
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Re: Microchip CPU to read SD card file content example
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初級會員
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測試過PIC24FJ256GA105,雖說256KB,但只能放約80KB字型,PIC32MX695F512還在Study!擔心只能放約128KB字型?
發表於: 2009/12/21 11:38
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Re: Microchip CPU to read SD card file content example
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資深會員
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發表於: 2009/12/21 11:01
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Re: Microchip CPU to read SD card file content example
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初級會員
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目前Microchip CPU內建Program空間,應該不足夠放得下中文常用字型16x16檔(約170KB),所以想到要用SD卡來當儲存空間.是否還有其他方式,可以參考?請各專家提供意見!Thanks!
發表於: 2009/12/21 9:49
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Re: Microchip CPU to read SD card file content example
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版主
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AN1045 - File I/O Functions Using Microchip's Memory Disk Drive File System Library 這個應用筆記是否有用?
http://www.microchip.com/stellent/idc ... eId=1824&appnote=en532040 http://www.microchip.com/stellent/idc ... odeId=2651¶m=en534491
發表於: 2009/12/1 11:43
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Microchip CPU to read SD card file content example
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初級會員
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請問是否有由Microchip CPU讀取SD卡內容資料範例程式?
我看Datalogger範例,好像只有寫資料到SD卡.
發表於: 2009/11/30 8:56
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