Basic python scripts to send USB Vendor Commands to PSoC5LP, based on Cypress AN56377

vendorCommands.py

#!/usr/bin/env python3

'''
Basic script to send USB Vendor Commands to PSoC5LP

Based on Cypress AN56377

VID = 0x04B4
PID = 0xE176

Direction = OUT
ReqType = Vendor
Target = Device

Request Codes:
0xA1 = Turn onboard LED on
0xB1 = Turn onboard LED off
0xA2 = TODO, read data
0xB2 = TODO, send data

'''

import usb
import sys
from sys import platform as _platform
import time

VID = 0x04B4
PID = 0xE176

dev = usb.core.find(idVendor = VID, idProduct = PID)

if not dev:
    print("No se encontro el PSoC")
    exit(1)

print("PSoC encontrado")

if _platform == "linux" or _platform == "linux2":
    if dev.is_kernel_driver_active(0):
        dev.detach_kernel_driver(0)

for i in range(10):
    # dev.ctrl_transfer(bmRequestType, bmRequest, wValue, wIndex, data)
    # Prendemos el LED
    dev.ctrl_transfer(0x40 , 0xA1, 0, 0, [])
    # Esperamos
    time.sleep(0.5)
    # Apagamos el LED
    dev.ctrl_transfer(0x40 , 0xB1, 0, 0, [])
    time.sleep(0.5)

print("Adios!")
exit(0)