EM500W Platform

Hardware Devices Covered by This Platform

EM500 programmable IoT module (optionally, with the GA1000 Wi-Fi add-on module)
Other devices incorporating the EM500

Memory Space and Key Info

RAM	17,920 bytes for application variables and data
Flash	327,680 bytes for application storage, data cannot be stored in this memory
EEPROM	200 bytes for application data

Platform type	16-bit platform
Clock frequency (CLOCK) and clock control	Frequency is fixed at 80MHz
Available network interfaces	Ethernet (net.), Wi-Fi (wln.) , PPP (ppp.), PPPoE (pppoe.)⁽¹⁾
GPIO type	Bidirectional⁽²⁾
UART limitations	Max practical baudrate ~115,200bps
Serial port FIFOs	16 bytes for TX, 16 bytes for RX
Serial port line configuration	N/A (as all GPIO lines are bidirectional)
Serial port interrupts and io.intenabled	Independent
RTS/CTS remapping	Supported⁽³⁾
ADC	NO
Pulse-width Modulation (PWM)	NO
GA1000 support	YES
WA2000 support	NO
GA1000 and WA2000 lines remapping	Not supported⁽⁴⁾
beep.divider calculation	N/A (buzzer not supported)
Recommended buzzer frequency divider	N/A (buzzer not supported)
Display type selection and line remapping	Display not supported
Special configuration section of the EEPROM	28 bytes for MAC and device password storage
Device serial number	4 bytes, the number can't be changed
Flash memory configuration	Dedicated memory for firmware/application Data cannot be stored in this memory
Self-upgrades for Tibbo BASIC/C applications	Not supported
Status LEDs (LED Control Lines)	Green status (SG) LED control line Red status (SR) LED control line Patented Ethernet link status indication mechanism: LED brightness indicates link status
Debug communications	Ethernet / UDP Broadcast transport Ethernet / WinPCap transport

The sock.allowedinterfaces property refers to the Ethernet interface as "NET," Wi-Fi as "WLN," PPP as "PPP," and PPPoE as "PPPOE." The sock.targetinterface and sock.currentinterface properties rely on the pl_sock_interfaces enum, whose members differ depending on the platform.
Surrounding hardware may dictate which GPIO lines must be used as inputs and which as outputs.
CTS is permanently mapped to 0 — PL_INT_NUM_0 (0 — PL_IO_NUM_0_INT0). RTS is permanently mapped to 2 — PL_IO_NUM_2.
Connect the GA1000 add-on module as follows (also see schematic diagram C in Connecting GA1000 and WA2000):

CS	7 — PL_IO_NUM_7
CLK	6 — PL_IO_NUM_6
DI	5 — PL_IO_NUM_5 (yes, the DI and DO lines are on the same GPIO line)
DO
RST	Choose any suitable GPIO or use NAND gates to generate reset

Supported Objects, Variable Types, and Functions

button — monitors the MD line (setup button)
fd^* — manages flash memory file system and direct sector access (requires an externally connected flash IC)
io — handles I/O lines, ports, and interrupts
net — controls the Ethernet port
pat — "plays" patterns on a pair of LEDs
ppp — provides access to the Internet over a serial modem (GPRS, POTS, etc.)
pppoe — provides access to the Internet over an ADSL modem
romfile — facilitates access to resource files (fixed data);
ser — in charge of the serial port (UART, Wiegand, and clock/data modes)
sock — socket communications (up to 16 UDP, TCP, and HTTP sessions)
stor — provides access to the EEPROM
sys — in charge of general device functionality
wln — handles the Wi-Fi interface (requires the GA1000)

* Fully supported with the exception of fd.copyfirmware. Disabled by default — enable it in Project Settings -> Customize.

This platform supports the standard set of variable types and functions (a.k.a. "syscalls") except aes128enc and aes128dec. These AES128 functions are not present on the EM500W platform.

Platform-Specific Constants

Enum pl_redir — The list of constants that define buffer redirection (shorting) for this platform
Enum pl_io_num — The list of constants that define available I/O lines
Enum pl_io_port_num — The list of constants that define available 8-bit I/O ports
Enum pl_int_num — The list of constants that define available interrupt lines
Enum pl_sock_interfaces — The list of available network interfaces