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Merge pull request #9009 from Bob-the-Kuhn/Due-RRDFG-power-up-garbage

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[2.0.x] Due - fix power up garbage on RRDFG LCD
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Bob-the-Kuhn 2018-01-03 23:19:29 -06:00 committed by GitHub
commit 016e46a3c0
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 34 additions and 9 deletions
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20
Marlin/src/HAL/HAL_DUE/u8g_com_HAL_DUE_st7920_sw_spi.cpp
View File

@ -55,7 +55,7 @@
*/
#ifdef __SAM3X8E__
#ifdef ARDUINO_ARCH_SAM
#include <U8glib.h>
#include <Arduino.h>
@ -106,10 +106,10 @@ static void spiSend_sw_DUE(uint8_t val) { // 800KHz
MOSI_pPio->PIO_SODR = MOSI_dwMask;
else
MOSI_pPio->PIO_CODR = MOSI_dwMask;
val = val << 1;
__delay_4cycles(2);
__delay_4cycles(1);
SCK_pPio->PIO_SODR = SCK_dwMask;
__delay_4cycles(22);
__delay_4cycles(19); // 16 dead, 17 garbage, 18/0 900kHz, 19/1 825k, 20/1 800k, 21/2 725KHz
val <<= 1;
SCK_pPio->PIO_CODR = SCK_dwMask;
}
}
@ -129,8 +129,8 @@ static void u8g_com_DUE_st7920_write_byte_sw_spi(uint8_t rs, uint8_t val) {
/* data */
spiSend_sw_DUE(0x0fa);
for( i = 0; i < 4; i++ ) // give the controller some time to process the data
u8g_10MicroDelay(); // 2 is bad, 3 is OK, 4 is safe
for (i = 0; i < 4; i++) // give the controller some time to process the data
u8g_10MicroDelay(); // 2 is bad, 3 is OK, 4 is safe
}
spiSend_sw_DUE(val & 0x0f0);
@ -151,9 +151,13 @@ uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_va
u8g_SetPILevel_DUE(u8g, U8G_PI_SCK, 0);
u8g_SetPIOutput_DUE(u8g, U8G_PI_SCK);
u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 0);
u8g_SetPILevel_DUE(u8g, U8G_PI_MOSI, 1);
u8g_SetPIOutput_DUE(u8g, U8G_PI_MOSI);
SCK_pPio->PIO_CODR = SCK_dwMask; //SCK low - needed at power up but not after reset
MOSI_pPio->PIO_CODR = MOSI_dwMask; //MOSI low - needed at power up but not after reset
u8g_Delay(5);
u8g->pin_list[U8G_PI_A0_STATE] = 0; /* inital RS state: command mode */
break;
@ -199,6 +203,4 @@ uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_va
return 1;
}
#pragma GCC reset_options
#endif //ARDUINO_ARCH_SAM

23
Marlin/src/lcd/dogm/u8g_dev_st7920_128x64_HAL.cpp
View File

@ -89,6 +89,27 @@ static const uint8_t u8g_dev_st7920_128x64_HAL_init_seq[] PROGMEM = {
U8G_ESC_END /* end of sequence */
};
void clear_graphics_DRAM(u8g_t *u8g, u8g_dev_t *dev){
u8g_SetChipSelect(u8g, dev, 1);
u8g_Delay(1);
u8g_SetAddress(u8g, dev, 0); // cmd mode
u8g_WriteByte(u8g, dev, 0x08); //display off, cursor+blink off
u8g_WriteByte(u8g, dev, 0x3E); //extended mode + GDRAM active
for (uint8_t y = 0; y < (HEIGHT) / 2; y++) { //clear GDRAM
u8g_WriteByte(u8g, dev, 0x80 | y); //set y
u8g_WriteByte(u8g, dev, 0x80); //set x = 0
u8g_SetAddress(u8g, dev, 1); /* data mode */
for (uint8_t i = 0; i < 2 * (WIDTH) / 8; i++) //2x width clears both segments
u8g_WriteByte(u8g, dev, 0);
u8g_SetAddress(u8g, dev, 0); /* cmd mode */
}
u8g_WriteByte(u8g, dev, 0x0C); //display on, cursor+blink off
u8g_SetChipSelect(u8g, dev, 0);
}
uint8_t u8g_dev_st7920_128x64_HAL_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
{
switch(msg)
@ -96,6 +117,7 @@ uint8_t u8g_dev_st7920_128x64_HAL_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, vo
case U8G_DEV_MSG_INIT:
u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_400NS);
u8g_WriteEscSeqP(u8g, dev, u8g_dev_st7920_128x64_HAL_init_seq);
clear_graphics_DRAM(u8g, dev);
break;
case U8G_DEV_MSG_STOP:
break;
@ -143,6 +165,7 @@ uint8_t u8g_dev_st7920_128x64_HAL_4x_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg,
case U8G_DEV_MSG_INIT:
u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_400NS);
u8g_WriteEscSeqP(u8g, dev, u8g_dev_st7920_128x64_HAL_init_seq);
clear_graphics_DRAM(u8g, dev);
break;
case U8G_DEV_MSG_STOP: