Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.
Dependents: FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more
Fork of SPI_TFT by
See Components - RA8875 Based Display
Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.
Offline Help Manual (Windows chm)
/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)
Diff: RA8875.cpp
- Revision:
- 194:53c18f0e7922
- Parent:
- 191:0fad2e45e196
- Child:
- 195:17e176dbd6eb
--- a/RA8875.cpp Mon Nov 25 19:55:17 2019 +0000 +++ b/RA8875.cpp Tue Feb 11 15:35:02 2020 +0000 @@ -1115,19 +1115,19 @@ RetCode_t RA8875::SetTextCursorControl(cursor_t cursor, bool blink) { - unsigned char mwcr0 = ReadCommand(0x40) & 0x0F; // retain direction, auto-increase - unsigned char mwcr1 = ReadCommand(0x41) & 0x01; // retain currently selected layer + unsigned char mwcr0 = ReadCommand(RA8875_MWCR0) & 0x0F; // retain direction, auto-increase + unsigned char mwcr1 = ReadCommand(RA8875_MWCR1) & 0x01; // retain currently selected layer unsigned char horz = 0; unsigned char vert = 0; - mwcr0 |= 0x80; // text mode + mwcr0 |= 0x80; // text mode if (cursor != NOCURSOR) - mwcr0 |= 0x40; // visible + mwcr0 |= 0x40; // visible if (blink) - mwcr0 |= 0x20; // blink + mwcr0 |= 0x20; // blink WriteCommand(RA8875_MWCR0, mwcr0); // configure the cursor WriteCommand(RA8875_MWCR1, mwcr1); // close the graphics cursor - WriteCommand(RA8875_BTCR, 0x1f); // The cursor flashing cycle + WriteCommand(RA8875_BTCR, 0x1f); // The cursor flashing cycle switch (cursor) { case IBEAM: horz = 0x01; @@ -1163,7 +1163,7 @@ RA8875::orientation_t RA8875::GetOrientation() { - uint8_t dpcrVal = ReadCommand(0x20); + uint8_t dpcrVal = ReadCommand(RA8875_DPCR); dpcrVal &= 0x0C; // keep the scan direction bits switch (dpcrVal) { @@ -1181,13 +1181,13 @@ RetCode_t RA8875::SetOrientation(RA8875::orientation_t angle) { - uint8_t fncr1Val = ReadCommand(0x22); - uint8_t dpcrVal = ReadCommand(0x20); - RetCode_t r; - - screen_orientation = angle; - fncr1Val &= ~0x10; // remove the old font rotation bit + uint8_t fncr1Val = ReadCommand(RA8875_FNCR1); + uint8_t dpcrVal = ReadCommand(RA8875_DPCR); + uint8_t mwcr0 = ReadCommand(RA8875_MWCR0); + + fncr1Val &= ~0x10; // remove the old direction bit dpcrVal &= ~0x0C; // remove the old scan direction bits + mwcr0 &= 0xE3; // remove the old direction bits switch (angle) { case RA8875::normal: //fncr1Val |= 0x10; @@ -1197,25 +1197,28 @@ case RA8875::rotate_90: fncr1Val |= 0x10; dpcrVal |= 0x08; + mwcr0 |= 0x00; portraitmode = true; break; case RA8875::rotate_180: //fncr1Val |= 0x00; dpcrVal |= 0x0C; + //mwcr0 |= 0x00; portraitmode = false; break; case RA8875::rotate_270: fncr1Val |= 0x10; dpcrVal |= 0x04; + mwcr0 |= 0x00; portraitmode = true; break; default: return bad_parameter; } INFO("Orientation: %d, %d", angle, portraitmode); - r = WriteCommand(RA8875_FNCR1, fncr1Val); - r = WriteCommand(RA8875_DPCR, dpcrVal); - return r; + WriteCommand(RA8875_MWCR0, mwcr0); + WriteCommand(RA8875_FNCR1, fncr1Val); + return WriteCommand(RA8875_DPCR, dpcrVal); } @@ -1316,8 +1319,8 @@ } } -// Questions to ponder - -// - if we choose to wrap to the next line, because the character won't fit on the current line, + + // Questions to ponder - // - if we choose to wrap to the next line, because the character won't fit on the current line, // should it erase the space to the width of the screen (in case there is leftover junk there)? @@ -1363,10 +1366,9 @@ if (c) { unsigned char mwcr0; - mwcr0 = ReadCommand(0x40); - if ((mwcr0 & 0x80) == 0x00) { + mwcr0 = ReadCommand(RA8875_MWCR0); + if ((mwcr0 & 0x80) == 0x00) WriteCommand(RA8875_MWCR0, 0x80 | mwcr0); // Put in Text mode if not already - } if (c == '\r') { loc_t x; x = ReadCommand(0x30) | (ReadCommand(0x31) << 8); // Left edge of active window @@ -1392,7 +1394,10 @@ RetCode_t RA8875::_StartGraphicsStream(void) { - WriteCommand(RA8875_MWCR0,0x00); // Graphics write mode + unsigned char mwcr0; + + mwcr0 = ReadCommand(RA8875_MWCR0); + WriteCommand(RA8875_MWCR0, mwcr0 & ~0x80); // Graphics write mode WriteCommand(RA8875_MRWC); // Prepare for streaming data return noerror; } @@ -1421,10 +1426,14 @@ void RA8875::puts(const char * string) { if (font == NULL) { - WriteCommand(RA8875_MWCR0,0x80); // Put in Text mode if internal font + unsigned char mwcr0; + + mwcr0 = ReadCommand(RA8875_MWCR0); + if ((mwcr0 & 0x80) == 0x00) + WriteCommand(RA8875_MWCR0, 0x80 | mwcr0); // Put in Text mode if not already } point_t cursor = GetTextCursor(); - while (*string) { // @TODO calling individual _putc is slower... optimizations? + while (string && *string) { // @TODO calling individual _putc is slower... optimizations? if (wordwrap) { const char * p = string; const char * pSpace = NULL; @@ -1688,9 +1697,12 @@ color_t RA8875::getPixel(loc_t x, loc_t y) { color_t pixel; + unsigned char mwcr0; PERFORMANCE_RESET; - WriteCommand(RA8875_MWCR0,0x00); // Graphics write mode + mwcr0 = ReadCommand(RA8875_MWCR0); + if (mwcr0 & 0x80) + WriteCommand(RA8875_MWCR0, mwcr0 & ~0x80); // Graphics write mode SetGraphicsCursorRead(x, y); WriteCommand(RA8875_MRWC); _select(true); @@ -1711,10 +1723,13 @@ RetCode_t RA8875::getPixelStream(color_t * p, uint32_t count, loc_t x, loc_t y) { color_t pixel; + unsigned char mwcr0; RetCode_t ret = noerror; PERFORMANCE_RESET; - ret = WriteCommand(RA8875_MWCR0,0x00); // Graphics write mode + mwcr0 = ReadCommand(RA8875_MWCR0); + if (mwcr0 & 0x80) + WriteCommand(RA8875_MWCR0, mwcr0 & ~0x80); // Graphics write mode ret = SetGraphicsCursorRead(x, y); ret = WriteCommand(RA8875_MRWC); _select(true);