Issue #6 fixed and reading functions added#32
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Issue # 6 was that createchar() function leave data address in CGRAM position. After that, begin(), setCursor(),clear() or home() functions must be executed before write() function in order for it to work. It is fixed but require rw pin to be set for it to work. This is because, when address register goes to CGRAM, there is no record of its previous position in our MCU. MCU must read its previous position in order for it to go back. In case rw pin is not specified, the register is not returned and it cannot untill rw is specified. Also Added following functions, read_BF_addr read_RAM read read4bits read8bits
zaidMughal
changed the title
per1234
requested changes
Mar 20, 2020
camelCase corrected in two functions.
read function return type changed to int so they give -1 if not read. Also readRAM generates an error if both inlined and used in cpp file. Either we put it in .h file or not make it a normal function. So I made it a normal function.
per1234
reviewed
Mar 21, 2020
per1234
previously requested changes
Mar 21, 2020
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per1234
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Issue #6 was that createchar() function leave data address in CGRAM position. After that, begin(), setCursor(),clear() or home() functions must be executed before write() function in order for it to work. It is fixed but require rw pin to be set for it to work. This is because, when address register goes to CGRAM, there is no record of its previous position in our MCU. MCU must read its previous position in order for it to go back. In case rw pin is not specified, the register is not returned and it cannot untill rw is specified.
Also Added following functions,
read_BF_addr
read_RAM
read
read4bits
read8bits