ZBasicESP8266 - page 15 of 62

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ZBasic System Library

ZBasic Microcontrollers

ShiftInEx() - With no speed control the clock period is approximately 1.5uS at 80MHz. With speed

control, the extra delay per bit is a number of CPU cycles approximately equal to 5 times the bitTime

parameter value. When running at 160MHz, the bitTime parameter value is doubled in order to maintain

the same approximate timing.

ShiftOutEx() - With no speed control the clock period is approximately 950 nS at 80MHz. With speed

control, the extra delay per bit is a number of CPU cycles approximately equal to 5 times the bitTime

parameter value. When running at 160MHz, the bitTime parameter value is doubled in order to maintain

the same approximate timing.

Sleep() - The resolution of the sleep time is 1mS.

System Library Routines Not Available for the ESP8266

The list below gives the System Library Routines that are not supported on the EPS8266. The reason

that they are not supported is, in most cases, because the ESP8266 lacks the hardware necessary to

support them or that it was deemed impractical to support them. The boldface entries are not supported

because they relate to multi-tasking. A few of the routines are not supported because they were thought

not to have high enough utility value in the ESP8266 environment.

System.HeapHeadRoom

System.HeapLimit

System.HeapSize

WaitForInterrupt

WaitForInterval

OutputCaptureEx

DelayUntilClockTick