I would use TQFP 44 to DIP Adapters.I can't do it myself, as I've never worked with SMD at all.
, and a flux pen but you need some old un-populated boards .. I found after tagging the TQFP corners and soldering one side , to use solder wick across the all the pins ( one side ) then with iron and heat and drag the braid out and off , leaves the 'legs' perfect.. clean up with isopropyl alcohol (IPA 170 ). I succeeded with a 100 pin .4 mm chip this way. (my previous post )With a little practice
Ok, then the internal EEPROM is huge enough.So, I'll probably go for 16 presets (256 bytes), which should be more than I need.
mov.w #0x000f,W0 mov W0,TRISC nop clr W0 mov W0,ODCC nop mov #7,W0 mov W0,ANSC nop mov #0x0100,w0 mov w0,LATC nop _SPI2Initialize: mov.w #0x0320,w0 mov.w w0,SPI2CON1 nop clr.w w0 mov.w w0,SPI2CON2 return
That's the one. I soldered the jumper for SPI.MJ Not sure if this correct module . did you solder the jumper .
is in pdf note ...
SERIAL MODE Factory setting for interface is parallel with 4 bit or 8 bit data bus. Alternatively the module can be used with serial data stream. For that, solder link SPI has to be closed. Specification for serial operation mode is described in user manual for
is this the serial data sheet ?
Also 680 ohms seems 6 x too high , is their a resistor on the display to limit back lite ? some do some dont ...
Not done SPI but don't you need a 'select / enable 'on the slave.