====== HWrite ======

''HWrite address, data, byteLength''
| //address// | Heap address  |
| //data// | Constant or variable with data (whole numbers only)  }
| //byteLength// |  number of bytes to write  |

This function supports only CB405 and CB405RT modules.

Store length number of bytes of variable to the heap address, address.

<code xbasic>
Dim A As Integer
Dim B As Integer
A = 100
HWrite 0,A,2            ' Write integer A to address 0.
B = HRead(0,2)          ' Read from address 0 and store in B.
</code>

===== About Heap Memory =====

Heap memory access is a special feature only available on the CB405/CB405RT module. 
The user may use 55KB of heap memory from address 0 through
56831 (&H0000 through &HDDFF). The heap can be used to store large
data for graphics, temperature tables, etc. With a backup battery, the heap
can be used for data logging and other persistent uses.

{{ :cubloc:hread:heapmemory.png?nolink |}}

EERead and EEWrite have same syntax as HRead and HWrite.

^Function ^Memory Type ^Feature^
|EERead,EEWrite|EEPROM |Retains data during power cycles without a battery. The EEWrite command takes about 5ms. 4KB of available memory |
|HRead,HWrite|SRAM |Retains data during power cycles with a backup battery. Without a backup battery, data is lost. HWrite command takes about 20 microseconds to execute, much faster compared to EEWrite. 55KB of available memory |

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