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- module(..., package.seeall)
- ----GT911
- require "misc"
- require "utils"
- require "pins"
- local GT911addr = 0x14
- local i2cid = 2
- local rst = pins.setup(23, 1)
- local int = pins.setup(19)
- local function init()
- if i2c.setup(i2cid, i2c.SLOW) ~= i2c.SLOW then
- print("i2c.init fail")
- return
- end
- -------------------------初始化-------------------------
- rst(0)
- int(1)
- sys.wait(10)
- rst(1)
- sys.wait(10)
- int(0)
- sys.wait(55)
- sys.wait(50)
- end
- sys.taskInit(init)
- local ispress = false
- local last_x, last_y
- x = 0
- y = 0
- function get()
-
- i2c.send(i2cid, GT911addr, string.char(0x81, 0x4e))
- pressed = i2c.recv(i2cid, GT911addr, 1)
- if pressed:byte()==nil then
- return false, false, -1, -1
- end
- pressed = bit.band(pressed:byte(), 0x0f)
- i2c.send(i2cid, GT911addr, string.char(0x81, 0x4e, 0x00, 0x00))
- if pressed == 0 then
- if ispress == false then
- -- _G.iCool_standByTimeoutSleepScreen()
- return false, false, -1, -1
- end
- ispress = false
- -- log.info("ispress x,y ", ispress, x, y)
- return true, ispress, x, y
- end
- i2c.send(i2cid, GT911addr, string.char(0x81, 0x51))
- xh = i2c.recv(i2cid, GT911addr, 1):byte()
- i2c.send(i2cid, GT911addr, string.char(0x81, 0x50))
- xl = i2c.recv(i2cid, GT911addr, 1):byte()
- i2c.send(i2cid, GT911addr, string.char(0x81, 0x53))
- yh = i2c.recv(i2cid, GT911addr, 1):byte()
- i2c.send(i2cid, GT911addr, string.char(0x81, 0x52))
- yl = i2c.recv(i2cid, GT911addr, 1):byte()
- x = xl + (xh * 256)
- y = yl + (yh * 256)
- if ispress == true and last_x == x and last_y == y then
- return false, false, -1, -1
- end
- ispress = true
- last_x = x
- last_y = y
- -- log.info("ispress x,y ", ispress, x, y)
- return true, ispress, x, y
- end
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