Added built-in display bringup for Badger2040
This commit is contained in:
ZodiusInfuser
parent
d66cf1d8ef
commit
eab5f00548
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@ -26,7 +26,284 @@
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#include "supervisor/board.h"
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#include "mpconfigboard.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/displayio/FourWire.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-module/displayio/__init__.h"
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#include "supervisor/shared/board.h"
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#define DELAY 0x80
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enum reg {
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PSR = 0x00,
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PWR = 0x01,
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POF = 0x02,
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PFS = 0x03,
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PON = 0x04,
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PMES = 0x05,
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BTST = 0x06,
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DSLP = 0x07,
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DTM1 = 0x10,
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DSP = 0x11,
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DRF = 0x12,
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DTM2 = 0x13,
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LUT_VCOM = 0x20,
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LUT_WW = 0x21,
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LUT_BW = 0x22,
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LUT_WB = 0x23,
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LUT_BB = 0x24,
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PLL = 0x30,
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TSC = 0x40,
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TSE = 0x41,
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TSR = 0x43,
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TSW = 0x42,
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CDI = 0x50,
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LPD = 0x51,
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TCON = 0x60,
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TRES = 0x61,
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REV = 0x70,
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FLG = 0x71,
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AMV = 0x80,
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VV = 0x81,
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VDCS = 0x82,
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PTL = 0x90,
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PTIN = 0x91,
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PTOU = 0x92,
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PGM = 0xa0,
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APG = 0xa1,
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ROTP = 0xa2,
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CCSET = 0xe0,
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PWS = 0xe3,
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TSSET = 0xe5
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};
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enum PSR_FLAGS {
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RES_96x230 = 0b00000000,
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RES_96x252 = 0b01000000,
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RES_128x296 = 0b10000000,
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RES_160x296 = 0b11000000,
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LUT_OTP = 0b00000000,
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LUT_REG = 0b00100000,
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FORMAT_BWR = 0b00000000,
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FORMAT_BW = 0b00010000,
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SCAN_DOWN = 0b00000000,
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SCAN_UP = 0b00001000,
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SHIFT_LEFT = 0b00000000,
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SHIFT_RIGHT = 0b00000100,
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BOOSTER_OFF = 0b00000000,
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BOOSTER_ON = 0b00000010,
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RESET_SOFT = 0b00000000,
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RESET_NONE = 0b00000001
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};
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enum PWR_FLAGS_1 {
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VDS_EXTERNAL = 0b00000000,
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VDS_INTERNAL = 0b00000010,
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VDG_EXTERNAL = 0b00000000,
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VDG_INTERNAL = 0b00000001
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};
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enum PWR_FLAGS_2 {
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VCOM_VD = 0b00000000,
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VCOM_VG = 0b00000100,
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VGHL_16V = 0b00000000,
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VGHL_15V = 0b00000001,
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VGHL_14V = 0b00000010,
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VGHL_13V = 0b00000011
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};
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enum BOOSTER_FLAGS {
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START_10MS = 0b00000000,
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START_20MS = 0b01000000,
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START_30MS = 0b10000000,
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START_40MS = 0b11000000,
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STRENGTH_1 = 0b00000000,
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STRENGTH_2 = 0b00001000,
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STRENGTH_3 = 0b00010000,
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STRENGTH_4 = 0b00011000,
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STRENGTH_5 = 0b00100000,
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STRENGTH_6 = 0b00101000,
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STRENGTH_7 = 0b00110000,
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STRENGTH_8 = 0b00111000,
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OFF_0_27US = 0b00000000,
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OFF_0_34US = 0b00000001,
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OFF_0_40US = 0b00000010,
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OFF_0_54US = 0b00000011,
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OFF_0_80US = 0b00000100,
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OFF_1_54US = 0b00000101,
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OFF_3_34US = 0b00000110,
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OFF_6_58US = 0b00000111
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};
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enum PFS_FLAGS {
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FRAMES_1 = 0b00000000,
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FRAMES_2 = 0b00010000,
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FRAMES_3 = 0b00100000,
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FRAMES_4 = 0b00110000
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};
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enum TSE_FLAGS {
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TEMP_INTERNAL = 0b00000000,
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TEMP_EXTERNAL = 0b10000000,
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OFFSET_0 = 0b00000000,
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OFFSET_1 = 0b00000001,
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OFFSET_2 = 0b00000010,
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OFFSET_3 = 0b00000011,
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OFFSET_4 = 0b00000100,
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OFFSET_5 = 0b00000101,
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OFFSET_6 = 0b00000110,
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OFFSET_7 = 0b00000111,
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OFFSET_MIN_8 = 0b00001000,
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OFFSET_MIN_7 = 0b00001001,
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OFFSET_MIN_6 = 0b00001010,
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OFFSET_MIN_5 = 0b00001011,
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OFFSET_MIN_4 = 0b00001100,
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OFFSET_MIN_3 = 0b00001101,
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OFFSET_MIN_2 = 0b00001110,
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OFFSET_MIN_1 = 0b00001111
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};
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enum PLL_FLAGS {
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// other frequency options exist but there doesn't seem to be much
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// point in including them - this is a fair range of options...
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HZ_29 = 0b00111111,
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HZ_33 = 0b00111110,
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HZ_40 = 0b00111101,
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HZ_50 = 0b00111100,
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HZ_67 = 0b00111011,
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HZ_100 = 0b00111010,
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HZ_200 = 0b00111001
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};
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// This is an UC8151 control chip. The display is a 2.9" grayscale EInk.
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const uint8_t display_start_sequence[] = {
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PWR, 5, VDS_INTERNAL | VDG_INTERNAL, VCOM_VD | VGHL_16V, 0b101011, 0b101011, 0b101011, // power setting
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PON, DELAY, 200, // power on and wait 200 ms
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BTST, 3, (START_10MS | STRENGTH_3 | OFF_6_58US), (START_10MS | STRENGTH_3 | OFF_6_58US), (START_10MS | STRENGTH_3 | OFF_6_58US),
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PSR, 1, (RES_128x296 | LUT_REG | FORMAT_BW | SCAN_UP | SHIFT_RIGHT | BOOSTER_ON | RESET_NONE),
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PFS, 1, FRAMES_1,
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TSE, 1, TEMP_INTERNAL | OFFSET_0,
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TCON, 1, 0x22, // tcon setting
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CDI, 1, 0b01001100, // vcom and data interval
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PLL, 1, HZ_100, // PLL set to 100 Hz
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// Look up tables for voltage sequence for pixel transition
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// Common voltage
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LUT_VCOM, 44,
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0x00, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x00, 0x23, 0x23, 0x00, 0x00, 0x02,
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0x00, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00,
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// White to white
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LUT_WW, 42,
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0x54, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x60, 0x23, 0x23, 0x00, 0x00, 0x02,
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0xa8, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Black to white
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LUT_BW, 42,
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0x54, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x60, 0x23, 0x23, 0x00, 0x00, 0x02,
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0xa8, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// White to black
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LUT_WB, 42,
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0xa8, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x60, 0x23, 0x23, 0x00, 0x00, 0x02,
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0x54, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Black to black
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LUT_BB, 42,
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0xa8, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x60, 0x23, 0x23, 0x00, 0x00, 0x02,
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0x54, 0x16, 0x16, 0x0d, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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const uint8_t display_stop_sequence[] = {
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POF, 0x00 // Power off
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};
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void board_init(void) {
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busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
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common_hal_busio_spi_construct(spi, &pin_GPIO18, &pin_GPIO19, &pin_GPIO16, false);
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common_hal_busio_spi_never_reset(spi);
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displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
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bus->base.type = &displayio_fourwire_type;
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common_hal_displayio_fourwire_construct(bus,
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spi,
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&pin_GPIO20, // EPD_DC Command or data
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&pin_GPIO17, // EPD_CS Chip select
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&pin_GPIO21, // EPD_RST Reset
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1200000, // Baudrate
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0, // Polarity
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0); // Phase
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displayio_epaperdisplay_obj_t *display = &displays[0].epaper_display;
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display->base.type = &displayio_epaperdisplay_type;
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common_hal_displayio_epaperdisplay_construct(
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display,
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bus,
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display_start_sequence, sizeof(display_start_sequence),
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display_stop_sequence, sizeof(display_stop_sequence),
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296, // width
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128, // height
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160, // ram_width
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296, // ram_height
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0, // colstart
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0, // rowstart
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270, // rotation
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NO_COMMAND, // set_column_window_command
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NO_COMMAND, // set_row_window_command
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NO_COMMAND, // set_current_column_command
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NO_COMMAND, // set_current_row_command
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DTM2, // write_black_ram_command
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false, // black_bits_inverted
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DTM1, // write_color_ram_command
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false, // color_bits_inverted
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0x000000, // highlight_color
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DRF, // refresh_display_command
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1.0, // refresh_time
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&pin_GPIO26, // busy_pin
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false, // busy_state
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2.0, // seconds_per_frame
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false, // always_toggle_chip_select
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false, // grayscale
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false); // two_byte_sequence_length
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}
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bool board_requests_safe_mode(void) {
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@ -37,4 +314,13 @@ void reset_board(void) {
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}
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void board_deinit(void) {
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displayio_epaperdisplay_obj_t *display = &displays[0].epaper_display;
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if (display->base.type == &displayio_epaperdisplay_type) {
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size_t i = 0;
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while (common_hal_displayio_epaperdisplay_get_busy(display)) {
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RUN_BACKGROUND_TASKS;
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i++;
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}
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}
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common_hal_displayio_release_displays();
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}
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@ -1,2 +1,15 @@
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#define MICROPY_HW_BOARD_NAME "Pimoroni Badger 2040"
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#define MICROPY_HW_MCU_NAME "rp2040"
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// Status LED
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#define MICROPY_HW_LED_STATUS (&pin_GPIO25)
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#define DEFAULT_UART_BUS_TX (&pin_GPIO0)
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#define DEFAULT_UART_BUS_RX (&pin_GPIO1)
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#define DEFAULT_I2C_BUS_SDA (&pin_GPIO4)
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#define DEFAULT_I2C_BUS_SCL (&pin_GPIO5)
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#define DEFAULT_SPI_BUS_SCK (&pin_GPIO18)
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#define DEFAULT_SPI_BUS_MOSI (&pin_GPIO19)
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#define DEFAULT_SPI_BUS_MISO (&pin_GPIO16)
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@ -1,5 +1,7 @@
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#include "shared-bindings/board/__init__.h"
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#include "shared-module/displayio/__init__.h"
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STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
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@ -23,7 +25,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO16) },
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{ MP_ROM_QSTR(MP_QSTR_INKY_CS), MP_ROM_PTR(&pin_GPIO17) },
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{ MP_ROM_QSTR(MP_QSTR_SCLK), MP_ROM_PTR(&pin_GPIO18) },
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{ MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO18) },
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{ MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO19) },
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{ MP_ROM_QSTR(MP_QSTR_INKY_DC), MP_ROM_PTR(&pin_GPIO20) },
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{ MP_ROM_QSTR(MP_QSTR_INKY_RST), MP_ROM_PTR(&pin_GPIO21) },
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@ -39,6 +41,8 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) }
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
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{ MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].epaper_display)},
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};
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MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
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