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Use i2c_OLED_send_cmdarray instead of bunch of i2c_OLED_send_cmd

This commit is contained in:
jflyper 2017-07-14 22:37:08 +09:00
parent b3898fa9d1
commit 905998ba7a
1 changed files with 70 additions and 37 deletions
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107
src/main/drivers/display_ug2864hsweg01.c
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@ -20,6 +20,8 @@
#include "platform.h"
#include "common/utils.h"
#include "drivers/bus_i2c.h"
#include "display_ug2864hsweg01.h"
@ -181,35 +183,61 @@ static bool i2c_OLED_send_cmd(busDevice_t *bus, uint8_t command)
return i2cWrite(bus->i2c.device, bus->i2c.address, 0x80, command);
}
static bool i2c_OLED_send_cmdarray(busDevice_t *bus, const uint8_t *commands, size_t len)
{
for (size_t i = 0 ; i < len ; i++) {
if (i2c_OLED_send_cmd(bus, *commands++)) {
return false;
}
}
return true;
}
static bool i2c_OLED_send_byte(busDevice_t *bus, uint8_t val)
{
return i2cWrite(bus->i2c.device, bus->i2c.address, 0x40, val);
}
static const uint8_t i2c_OLED_cmd_clear_display_pre[] = {
0xa6, // Set Normal Display
0xae, // Display OFF
0x20, // Set Memory Addressing Mode
0x00, // Set Memory Addressing Mode to Horizontal addressing mode
0xb0, // set page address to 0
0x40, // Display start line register to 0
0, // Set low col address to 0
0x10, // Set high col address to 0
};
static const uint8_t i2c_OLED_cmd_clear_display_post[] = {
0x81, // Setup CONTRAST CONTROL, following byte is the contrast Value... always a 2 byte instruction
200, // Here you can set the brightness 1 = dull, 255 is very bright
0xaf, // display on
};
void i2c_OLED_clear_display(busDevice_t *bus)
{
i2c_OLED_send_cmd(bus, 0xa6); // Set Normal Display
i2c_OLED_send_cmd(bus, 0xae); // Display OFF
i2c_OLED_send_cmd(bus, 0x20); // Set Memory Addressing Mode
i2c_OLED_send_cmd(bus, 0x00); // Set Memory Addressing Mode to Horizontal addressing mode
i2c_OLED_send_cmd(bus, 0xb0); // set page address to 0
i2c_OLED_send_cmd(bus, 0x40); // Display start line register to 0
i2c_OLED_send_cmd(bus, 0); // Set low col address to 0
i2c_OLED_send_cmd(bus, 0x10); // Set high col address to 0
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_clear_display_pre, ARRAYLEN(i2c_OLED_cmd_clear_display_pre));
for (uint16_t i = 0; i < 1024; i++) { // fill the display's RAM with graphic... 128*64 pixel picture
i2c_OLED_send_byte(bus, 0x00); // clear
}
i2c_OLED_send_cmd(bus, 0x81); // Setup CONTRAST CONTROL, following byte is the contrast Value... always a 2 byte instruction
i2c_OLED_send_cmd(bus, 200); // Here you can set the brightness 1 = dull, 255 is very bright
i2c_OLED_send_cmd(bus, 0xaf); // display on
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_clear_display_post, ARRAYLEN(i2c_OLED_cmd_clear_display_post));
}
static const uint8_t i2c_OLED_cmd_clear_display_quick[] = {
0xb0, // set page address to 0
0x40, // Display start line register to 0
0, // Set low col address to 0
0x10, // Set high col address to 0
};
void i2c_OLED_clear_display_quick(busDevice_t *bus)
{
i2c_OLED_send_cmd(bus, 0xb0); // set page address to 0
i2c_OLED_send_cmd(bus, 0x40); // Display start line register to 0
i2c_OLED_send_cmd(bus, 0); // Set low col address to 0
i2c_OLED_send_cmd(bus, 0x10); // Set high col address to 0
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_clear_display_quick, ARRAYLEN(i2c_OLED_cmd_clear_display_quick));
for (uint16_t i = 0; i < 1024; i++) { // fill the display's RAM with graphic... 128*64 pixel picture
i2c_OLED_send_byte(bus, 0x00); // clear
}
@ -253,6 +281,32 @@ void i2c_OLED_send_string(busDevice_t *bus, const char *string)
/**
* according to http://www.adafruit.com/datasheets/UG-2864HSWEG01.pdf Chapter 4.4 Page 15
*/
static const uint8_t i2c_OLED_cmd_init[] = {
0xD4, // Set Display Clock Divide Ratio / OSC Frequency
0x80, // Display Clock Divide Ratio / OSC Frequency
0xA8, // Set Multiplex Ratio
0x3F, // Multiplex Ratio for 128x64 (64-1)
0xD3, // Set Display Offset
0x00, // Display Offset
0x40, // Set Display Start Line
0x8D, // Set Charge Pump
0x14, // Charge Pump (0x10 External, 0x14 Internal DC/DC)
0xA1, // Set Segment Re-Map
0xC8, // Set Com Output Scan Direction
0xDA, // Set COM Hardware Configuration
0x12, // COM Hardware Configuration
0x81, // Set Contrast
0xCF, // Contrast
0xD9, // Set Pre-Charge Period
0xF1, // Set Pre-Charge Period (0x22 External, 0xF1 Internal)
0xDB, // Set VCOMH Deselect Level
0x40, // VCOMH Deselect Level
0xA4, // Set all pixels OFF
0xA6, // Set display not inverted
0xAF, // Set display On
};
bool ug2864hsweg01InitI2C(busDevice_t *bus)
{
@ -261,28 +315,7 @@ bool ug2864hsweg01InitI2C(busDevice_t *bus)
return false;
}
i2c_OLED_send_cmd(bus, 0xD4); // Set Display Clock Divide Ratio / OSC Frequency
i2c_OLED_send_cmd(bus, 0x80); // Display Clock Divide Ratio / OSC Frequency
i2c_OLED_send_cmd(bus, 0xA8); // Set Multiplex Ratio
i2c_OLED_send_cmd(bus, 0x3F); // Multiplex Ratio for 128x64 (64-1)
i2c_OLED_send_cmd(bus, 0xD3); // Set Display Offset
i2c_OLED_send_cmd(bus, 0x00); // Display Offset
i2c_OLED_send_cmd(bus, 0x40); // Set Display Start Line
i2c_OLED_send_cmd(bus, 0x8D); // Set Charge Pump
i2c_OLED_send_cmd(bus, 0x14); // Charge Pump (0x10 External, 0x14 Internal DC/DC)
i2c_OLED_send_cmd(bus, 0xA1); // Set Segment Re-Map
i2c_OLED_send_cmd(bus, 0xC8); // Set Com Output Scan Direction
i2c_OLED_send_cmd(bus, 0xDA); // Set COM Hardware Configuration
i2c_OLED_send_cmd(bus, 0x12); // COM Hardware Configuration
i2c_OLED_send_cmd(bus, 0x81); // Set Contrast
i2c_OLED_send_cmd(bus, 0xCF); // Contrast
i2c_OLED_send_cmd(bus, 0xD9); // Set Pre-Charge Period
i2c_OLED_send_cmd(bus, 0xF1); // Set Pre-Charge Period (0x22 External, 0xF1 Internal)
i2c_OLED_send_cmd(bus, 0xDB); // Set VCOMH Deselect Level
i2c_OLED_send_cmd(bus, 0x40); // VCOMH Deselect Level
i2c_OLED_send_cmd(bus, 0xA4); // Set all pixels OFF
i2c_OLED_send_cmd(bus, 0xA6); // Set display not inverted
i2c_OLED_send_cmd(bus, 0xAF); // Set display On
i2c_OLED_send_cmdarray(bus, i2c_OLED_cmd_init, ARRAYLEN(i2c_OLED_cmd_init));
i2c_OLED_clear_display(bus);