Awesome
LP5562
This package is a quick and dirty assembler for the Texas Instruments LP5562. Package is primarily written so that an open-source toolchain can be provided for the LED controller used in the keyswitch.one project.
Usage
First install via npm:
npm install --save lp5562
Then include it in your project
// if using typescript or ES6 modules
import {assemble} from 'lp5562'
// or if using ES5
var assemble = require('lp5562').assemble;
Typescript definitions are included in the package. The function's signature is:
assemble(program : string) : Uint16Array
where program
is the string representation of the assembly program, and the resulting Uint16Array
is an array of 48 16-bit WORDs representing the memory map of LP5562's program space.
assemble(`
.engine1
set_pwm 255
flash:
ramp 200, -128
ramp 200, 128
branch 5, flash
ramp 200, -128
ramp 200, -127
end, i
`);
Produces:
Uint16Array[ 65344, 65283, 32515, 33186, 65283, 65027, 208, 0, 0, 0, ... 0 ]
All data is provided in big-endian format (as the LP5562 is an 8-bit device). Feed the Uint16Array#buffer
to a Uint8Array
or use a DataView
if you need a different data representation.
Grammar
For the assembly language spec, see the grammar. As a rule of thumb, all instructions that work on the official assembler provided with the evaluation module should work here as well. See §3.4.1 and §3.4.2 in the EVM docs for syntax and parameters.
Contributing
This project is MIT Licensed. Pull requests welcome. Changes documented in CHANGELOG.md.