From 4e235d8461350216762b9ef5237687f6b655fc44 Mon Sep 17 00:00:00 2001 From: devsaurus Date: Thu, 24 Sep 2015 23:18:34 +0200 Subject: [PATCH] improve u8g lua examples --- lua_examples/u8glib/u8g_bitmaps.lua | 63 ++++--- lua_examples/u8glib/u8g_graphics_test.lua | 203 +++++++++++----------- 2 files changed, 142 insertions(+), 124 deletions(-) diff --git a/lua_examples/u8glib/u8g_bitmaps.lua b/lua_examples/u8glib/u8g_bitmaps.lua index 77b9f380..6e8dc72e 100644 --- a/lua_examples/u8glib/u8g_bitmaps.lua +++ b/lua_examples/u8glib/u8g_bitmaps.lua @@ -61,35 +61,46 @@ function draw(draw_state) end -function bitmap_test(delay) - -- read XBM picture - file.open("u8glib_logo.xbm", "r") - xbm_data = file.read() - file.close() +function bitmap_test() + dir = 0 + next_rotation = 0 - -- read Bitmap picture - file.open("u8g_rook.bm", "r") - bm_data = file.read() - file.close() + disp:firstPage() + repeat + draw(draw_state) + until disp:nextPage() == false - print("--- Starting Bitmap Test ---") - dir = 0 - next_rotation = 0 + if (draw_state <= 7 + 1*8) then + draw_state = draw_state + 1 + else + print("--- Restarting Bitmap Test ---") + draw_state = 1 + end - local draw_state - for draw_state = 1, 7 + 1*8, 1 do - disp:firstPage() - repeat - draw(draw_state) - until disp:nextPage() == false + print("Heap: " .. node.heap()) + -- retrigger timer to give room for system housekeeping + tmr.start(0) - tmr.delay(delay) - tmr.wdclr() - end - - print("--- Bitmap Test done ---") end ---init_i2c_display() -init_spi_display() -bitmap_test(50000) +draw_state = 1 + +init_i2c_display() +--init_spi_display() + +-- read XBM picture +file.open("u8glib_logo.xbm", "r") +xbm_data = file.read() +file.close() + +-- read Bitmap picture +file.open("u8g_rook.bm", "r") +bm_data = file.read() +file.close() + + +-- set up timer 0 with short interval, will be retriggered in graphics_test() +tmr.register(0, 100, tmr.ALARM_SEMI, function() bitmap_test() end) + +print("--- Starting Bitmap Test ---") +tmr.start(0) diff --git a/lua_examples/u8glib/u8g_graphics_test.lua b/lua_examples/u8glib/u8g_graphics_test.lua index bc21b1bd..abc91807 100644 --- a/lua_examples/u8glib/u8g_graphics_test.lua +++ b/lua_examples/u8glib/u8g_graphics_test.lua @@ -11,148 +11,155 @@ -- setup I2c and connect display function init_i2c_display() - -- SDA and SCL can be assigned freely to available GPIOs - local sda = 5 -- GPIO14 - local scl = 6 -- GPIO12 - local sla = 0x3c - i2c.setup(0, sda, scl, i2c.SLOW) - disp = u8g.ssd1306_128x64_i2c(sla) + -- SDA and SCL can be assigned freely to available GPIOs + local sda = 5 -- GPIO14 + local scl = 6 -- GPIO12 + local sla = 0x3c + i2c.setup(0, sda, scl, i2c.SLOW) + disp = u8g.ssd1306_128x64_i2c(sla) end -- setup SPI and connect display function init_spi_display() - -- Hardware SPI CLK = GPIO14 - -- Hardware SPI MOSI = GPIO13 - -- Hardware SPI MISO = GPIO12 (not used) - -- CS, D/C, and RES can be assigned freely to available GPIOs - local cs = 8 -- GPIO15, pull-down 10k to GND - local dc = 4 -- GPIO2 - local res = 0 -- GPIO16 + -- Hardware SPI CLK = GPIO14 + -- Hardware SPI MOSI = GPIO13 + -- Hardware SPI MISO = GPIO12 (not used) + -- CS, D/C, and RES can be assigned freely to available GPIOs + local cs = 8 -- GPIO15, pull-down 10k to GND + local dc = 4 -- GPIO2 + local res = 0 -- GPIO16 - spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, spi.DATABITS_8, 0) - disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res) + spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, spi.DATABITS_8, 0) + disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res) end -- graphic test components function prepare() - disp:setFont(u8g.font_6x10) - disp:setFontRefHeightExtendedText() - disp:setDefaultForegroundColor() - disp:setFontPosTop() + disp:setFont(u8g.font_6x10) + disp:setFontRefHeightExtendedText() + disp:setDefaultForegroundColor() + disp:setFontPosTop() end function box_frame(a) - disp:drawStr(0, 0, "drawBox") - disp:drawBox(5, 10, 20, 10) - disp:drawBox(10+a, 15, 30, 7) - disp:drawStr(0, 30, "drawFrame") - disp:drawFrame(5, 10+30, 20, 10) - disp:drawFrame(10+a, 15+30, 30, 7) + disp:drawStr(0, 0, "drawBox") + disp:drawBox(5, 10, 20, 10) + disp:drawBox(10+a, 15, 30, 7) + disp:drawStr(0, 30, "drawFrame") + disp:drawFrame(5, 10+30, 20, 10) + disp:drawFrame(10+a, 15+30, 30, 7) end function disc_circle(a) - disp:drawStr(0, 0, "drawDisc") - disp:drawDisc(10, 18, 9) - disp:drawDisc(24+a, 16, 7) - disp:drawStr(0, 30, "drawCircle") - disp:drawCircle(10, 18+30, 9) - disp:drawCircle(24+a, 16+30, 7) + disp:drawStr(0, 0, "drawDisc") + disp:drawDisc(10, 18, 9) + disp:drawDisc(24+a, 16, 7) + disp:drawStr(0, 30, "drawCircle") + disp:drawCircle(10, 18+30, 9) + disp:drawCircle(24+a, 16+30, 7) end function r_frame(a) - disp:drawStr(0, 0, "drawRFrame/Box") - disp:drawRFrame(5, 10, 40, 30, a+1) - disp:drawRBox(50, 10, 25, 40, a+1) + disp:drawStr(0, 0, "drawRFrame/Box") + disp:drawRFrame(5, 10, 40, 30, a+1) + disp:drawRBox(50, 10, 25, 40, a+1) end function stringtest(a) - disp:drawStr(30+a, 31, " 0") - disp:drawStr90(30, 31+a, " 90") - disp:drawStr180(30-a, 31, " 180") - disp:drawStr270(30, 31-a, " 270") + disp:drawStr(30+a, 31, " 0") + disp:drawStr90(30, 31+a, " 90") + disp:drawStr180(30-a, 31, " 180") + disp:drawStr270(30, 31-a, " 270") end function line(a) - disp:drawStr(0, 0, "drawLine") - disp:drawLine(7+a, 10, 40, 55) - disp:drawLine(7+a*2, 10, 60, 55) - disp:drawLine(7+a*3, 10, 80, 55) - disp:drawLine(7+a*4, 10, 100, 55) + disp:drawStr(0, 0, "drawLine") + disp:drawLine(7+a, 10, 40, 55) + disp:drawLine(7+a*2, 10, 60, 55) + disp:drawLine(7+a*3, 10, 80, 55) + disp:drawLine(7+a*4, 10, 100, 55) end function triangle(a) - local offset = a - disp:drawStr(0, 0, "drawTriangle") - disp:drawTriangle(14,7, 45,30, 10,40) - disp:drawTriangle(14+offset,7-offset, 45+offset,30-offset, 57+offset,10-offset) - disp:drawTriangle(57+offset*2,10, 45+offset*2,30, 86+offset*2,53) - disp:drawTriangle(10+offset,40+offset, 45+offset,30+offset, 86+offset,53+offset) + local offset = a + disp:drawStr(0, 0, "drawTriangle") + disp:drawTriangle(14,7, 45,30, 10,40) + disp:drawTriangle(14+offset,7-offset, 45+offset,30-offset, 57+offset,10-offset) + disp:drawTriangle(57+offset*2,10, 45+offset*2,30, 86+offset*2,53) + disp:drawTriangle(10+offset,40+offset, 45+offset,30+offset, 86+offset,53+offset) end function ascii_1() - local x, y, s - disp:drawStr(0, 0, "ASCII page 1") - for y = 0, 5, 1 do - for x = 0, 15, 1 do - s = y*16 + x + 32 - disp:drawStr(x*7, y*10+10, string.char(s)) - end - end + local x, y, s + disp:drawStr(0, 0, "ASCII page 1") + for y = 0, 5, 1 do + for x = 0, 15, 1 do + s = y*16 + x + 32 + disp:drawStr(x*7, y*10+10, string.char(s)) + end + end end function extra_page(a) - disp:drawStr(0, 12, "setScale2x2") - disp:setScale2x2() - disp:drawStr(0, 6+a, "setScale2x2") - disp:undoScale() + disp:drawStr(0, 12, "setScale2x2") + disp:setScale2x2() + disp:drawStr(0, 6+a, "setScale2x2") + disp:undoScale() end -- the draw() routine function draw(draw_state) - local component = bit.rshift(draw_state, 3) + local component = bit.rshift(draw_state, 3) - prepare() + prepare() - if (component == 0) then - box_frame(bit.band(draw_state, 7)) - elseif (component == 1) then - disc_circle(bit.band(draw_state, 7)) - elseif (component == 2) then - r_frame(bit.band(draw_state, 7)) - elseif (component == 3) then - stringtest(bit.band(draw_state, 7)) - elseif (component == 4) then - line(bit.band(draw_state, 7)) - elseif (component == 5) then - triangle(bit.band(draw_state, 7)) - elseif (component == 6) then - ascii_1() - elseif (component == 7) then - extra_page(bit.band(draw_state, 7)) - end + if (component == 0) then + box_frame(bit.band(draw_state, 7)) + elseif (component == 1) then + disc_circle(bit.band(draw_state, 7)) + elseif (component == 2) then + r_frame(bit.band(draw_state, 7)) + elseif (component == 3) then + stringtest(bit.band(draw_state, 7)) + elseif (component == 4) then + line(bit.band(draw_state, 7)) + elseif (component == 5) then + triangle(bit.band(draw_state, 7)) + elseif (component == 6) then + ascii_1() + elseif (component == 7) then + extra_page(bit.band(draw_state, 7)) + end end -function graphics_test(delay) - print("--- Starting Graphics Test ---") +function graphics_test() - -- cycle through all components - local draw_state - for draw_state = 0, 7 + 8*8, 1 do - disp:firstPage() - repeat - draw(draw_state) - until disp:nextPage() == false - --print(node.heap()) - tmr.delay(delay) - -- re-trigger Watchdog! - tmr.wdclr() - end + disp:firstPage() + repeat + draw(draw_state) + until disp:nextPage() == false - print("--- Graphics Test done ---") + if (draw_state <= 7 + 8*8) then + draw_state = draw_state + 1 + else + print("--- Restarting Graphics Test ---") + draw_state = 0 + end + + print("Heap: " .. node.heap()) + -- retrigger timer to give room for system housekeeping + tmr.start(0) end ---init_i2c_display() -init_spi_display() -graphics_test(50000) +draw_state = 0 + +init_i2c_display() +--init_spi_display() + +-- set up timer 0 with short interval, will be retriggered in graphics_test() +tmr.register(0, 100, tmr.ALARM_SEMI, function() graphics_test() end) + +print("--- Starting Graphics Test ---") +tmr.start(0)