hvilleneuve
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Activity overview
Latest activity by hvilleneuve-
hvilleneuve commented,
The 300uS in the comment refers to the SETUP time, not the MAX EXECUTION TIME. These are two separate things.The WaitReady function polls the STATUS bit to know when the LCD is ready to accept new ...
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hvilleneuve commented,
Yes,I can read too. In fact, this is the EXACT information I talked about in my first post.This is still confusing. Why then do you state in page 1 then that the trailing 5 of the part number indic...
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hvilleneuve commented,
Hi,it is also stated that VDD can be from 3.0 to 5.3V. But since the part number is ending with a "5", and in the cover page of the datasheet it is written "+5V power supply", can we power it fro...
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hvilleneuve created a post,
Precision about Vih in NHD-0420DZW-AY5 specifications
Hi, in the specifications for NHD-0420DZW-AY5, it is stated that Vih (min) = 0.9VDD.If we are powering the LCD from VDD=+5V, it means that Vih should be higher than +4.5V, which is extremely high.I...
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hvilleneuve commented,
/* LCD commands */#define CHARLCD_CMD_CLEAR 0x01#define CHARLCD_CMD_HOME 0x02#define CHARLCD_CMD_ENTRY 0x04#define CHARLCD_CMD_DISPLAY 0x08#define CHARLCD_CMD_FS 0x20 /* function set...
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hvilleneuve commented,
Hi,we are using the parallel interface, 6800 mode (default).In our case, the timing is not on the margin, far from it. For example, the specifications requires a minimum pulse width of 250nS for th...
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hvilleneuve created a post,
NHD-0420DZW-AY5 with scrambled display
Hi,We are using a NHD-0420DZW-AY5. The display works fine, but after a few hours/days of operation, we sometimes observe that the the display is full of strange symbols. Those symbols are not par...