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| Search found 7 matches |
| Author | Message |
|---|---|
 Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
 Forum: General CCS C Discussion Posted: Tue Dec 20, 2011 4:50 am Subject: can not write,read again from SPI flash w/ 18F2550 |
Thank. I will buy 18LF2550 and try again  |
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| Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
Forum: General CCS C Discussion Posted: Mon Dec 19, 2011 9:44 pm Subject: can not write,read again from SPI flash w/ 18F2550 |
| Ok. My real hardware work with 3.3v from LM1117-3.3v supply for PIC 18F2550 and Atmel 25C08. Read and write OK, communicate PC /w USB :OK | |
| Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
Forum: General CCS C Discussion Posted: Mon Dec 19, 2011 7:23 am Subject: can not write,read again from SPI flash w/ 18F2550 |
yes.real chip.still can not work  .after I used 10k pullup and delay_ms(10) |
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| Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
Forum: General CCS C Discussion Posted: Mon Dec 19, 2011 1:23 am Subject: can not write,read again from SPI flash w/ 18F2550 |
Proteus can't work.still problem.  |
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| Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
Forum: General CCS C Discussion Posted: Sun Dec 18, 2011 9:28 pm Subject: can not write,read again from SPI flash w/ 18F2550 |
| Hi. I want to replace SPI HW pins with another pins . I wonder Vcc : 5V for Pic and Vcc 3.3v cho Flash?. I afraid Flash death because SDI SCL SDO CS(pin B0 B1 B2 B4) 5V from PIC <-> Flash, al ... |
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| Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
Forum: General CCS C Discussion Posted: Sun Dec 18, 2011 8:40 pm Subject: can not write,read again from SPI flash w/ 18F2550 |
| Ok. my circuit
http://i203.photobucket.com/albums/aa132/hoangdinh86/usbflash.jpg All 3.3V. I use uart usb in 18f2550 <-> PC. |
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| Topic: can not write,read again from SPI flash w/ 18F2550 |
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| hoangdinh86 Replies: 13 Views: 23684 |
Forum: General CCS C Discussion Posted: Sun Dec 18, 2011 10:09 am Subject: can not write,read again from SPI flash w/ 18F2550 |
| Hi. I've been trying this to work but not success. First times, I could wrote a character to Flash and read it right, but second times I couldn't wrote another character to flash and read it wrong. I ... | |
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