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====== I2C for noForth on the MSP430 ======

{{https://user-images.githubusercontent.com/11397265/122937875-9ab1ad00-d372-11eb-9eab-5bcbd29c8512.jpg|p30(u) - i2c bitbang usci input and output to pcf8574}}\\
**I2C on the MSP430G2553**

All driver files are from the [[https://home.hccnet.nl/willem.ouwerkerk/egel-for-msp430/egel%20for%20launchpad.html#e03x|Egel Project, from chapter 30ff]]. This code example works with all added driver versions of the noForth I2C implementation:

<code>
\ Example with clock & 24C32 EEPROM
: {EEADDR   ( a +n -- )                     \ Address EEprom
    50 device!  {i2c-write  b-b bus! bus! ;

\ Read data b from 24C32 EEPROM byte-address addr. 
: EC@       ( addr -- b )
    2 {eeaddr i2c}  1 {i2c-read bus@ i2c} ;

\ Write data b to 24C32 EEPROM byte-address addr.
: EC!       ( b addr -- )
    3 {eeaddr  bus! i2c}  {poll} ;
</code>

Files:
  * 24C32 eeprom.f
  * e37 FR5 - i2c bitbang basics at p1 (asm).f
  * e37 FR5 - i2c usci-B0 basics.f
  * e37 G2 - i2c bitbang basics at p1 (asm).f
  * e37um G2 - basics for usci i2c.f