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20x2 LCD unknown type [SOLVED]
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wangine



Joined: 07 Jul 2009
Posts: 98
Location: Curtea de Arges, Romania

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PostPosted: Fri Nov 20, 2015 11:12 am     Reply with quote
I found finally the solution. Its not a printf() function or a PCM_p driver issue, it has the LCD issue like Ttelmah say earlier. I modified original ARM driver with help of 2 awesome functions of PCM_p driver lcd_send_nibble and lcd_read_nibble and now work. I notice, didn't need printf() to show characters correctly, the conclusion is not a printf() fault or PCM_p driver fault, just unknown Chinese issue. Still now i don't understand the difference of those functions, for me they look the same. They made the same operations and have same basic procedure. I post the driver herehttp://www.ccsinfo.com/forum/viewtopic.php?p=201089
, maybe someone have same issue. Anyway PCM_p if you have a time to make a test with your board, I'm very curious if on your LCD now normally, those characters should show incorrectly, right?
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