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Add the async uhk.writeDevice() and use it in get-i2c-baud-rate.js

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László Monda
2018-01-30 17:21:50 +01:00
parent 124c3ec29b
commit e0bb0bcca3
2 changed files with 13 additions and 9 deletions
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15
packages/usb/get-i2c-baud-rate.js
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@@ -1,13 +1,10 @@
#!/usr/bin/env node
const path = require('path');
const uhk = require('./uhk');
const device = uhk.getUhkDevice();
let buffer = new Buffer([uhk.usbCommands.getDeviceProperty, uhk.devicePropertyIds.i2cBaudRate]);
//console.log(buffer);
device.write(uhk.getTransferData(buffer));
let response = device.readSync();
//console.log(Buffer.from(response));
let requestedBaudRate = uhk.getUint32(response, 2);
let actualBaudRate = uhk.getUint32(response, 6);
console.log(`requestedBaudRate:${requestedBaudRate} | actualBaudRate:${actualBaudRate} | I2C0_F:0b${response[1].toString(2).padStart(8, '0')}`)
(async function() {
let response = await uhk.writeDevice(device, [uhk.usbCommands.getDeviceProperty, uhk.devicePropertyIds.i2cBaudRate]);
let requestedBaudRate = uhk.getUint32(response, 2);
let actualBaudRate = uhk.getUint32(response, 6);
console.log(`requestedBaudRate:${requestedBaudRate} | actualBaudRate:${actualBaudRate} | I2C0_F:0b${response[1].toString(2).padStart(8, '0')}`)
})();

7
packages/usb/uhk.js
View File

@@ -1,3 +1,4 @@
const util = require('util');
const HID = require('node-hid');
// const debug = process.env.DEBUG;
const debug = true;
@@ -26,6 +27,11 @@ function uint32ToArray(value) {
return [(value >> 0) & 0xff, (value >> 8) & 0xff, (value >> 16) & 0xff, (value >> 24) & 0xff];
}
function writeDevice(device, data, options={}) {
device.write(getTransferData(new Buffer(data)));
return util.promisify(device.read.bind(device))();
}
function getUhkDevice() {
const foundDevice = HID.devices().find(device =>
device.vendorId === 0x1d50 && device.productId === 0x6122 &&
@@ -72,6 +78,7 @@ exports = module.exports = moduleExports = {
getUint16,
getUint32,
uint32ToArray,
writeDevice,
getUhkDevice,
getBootloaderDevice,
getTransferData,