You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.3 KiB
89 lines
2.3 KiB
|
|
#include <chip.h> |
|
#include <delay.h> |
|
#include "u8g2.h" |
|
|
|
|
|
/*=======================================================================*/ |
|
/* Configuration */ |
|
#define SYS_TICK_PERIOD_IN_MS 100 |
|
|
|
|
|
/*=======================================================================*/ |
|
/* external functions */ |
|
uint8_t u8x8_gpio_and_delay_lpc824(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr); |
|
|
|
|
|
/*=======================================================================*/ |
|
/* system procedures and sys tick master task */ |
|
|
|
|
|
|
|
volatile uint32_t sys_tick_irq_cnt=0; |
|
|
|
|
|
void __attribute__ ((interrupt)) SysTick_Handler(void) |
|
{ |
|
sys_tick_irq_cnt++; |
|
} |
|
|
|
/*=======================================================================*/ |
|
|
|
u8g2_t u8g2; |
|
|
|
void draw(u8g2_t *u8g2) |
|
{ |
|
u8g2_SetFontMode(u8g2, 1); // Transparent |
|
u8g2_SetFontDirection(u8g2, 0); |
|
u8g2_SetFont(u8g2, u8g2_font_6x12_tr); |
|
u8g2_DrawStr(u8g2, 0, 20, "Hello World"); |
|
} |
|
|
|
/*=======================================================================*/ |
|
/* |
|
setup the hardware and start interrupts. |
|
called by "Reset_Handler" |
|
*/ |
|
int __attribute__ ((noinline)) main(void) |
|
{ |
|
|
|
/* call to the lpc lib setup procedure. This will set the IRC as clk src and main clk to 24 MHz */ |
|
Chip_SystemInit(); |
|
|
|
/* if the clock or PLL has been changed, also update the global variable SystemCoreClock */ |
|
SystemCoreClockUpdate(); |
|
|
|
/* set systick and start systick interrupt */ |
|
SysTick_Config(SystemCoreClock/1000UL*(unsigned long)SYS_TICK_PERIOD_IN_MS); |
|
|
|
/* enable clock for several subsystems */ |
|
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_IOCON | SYSCTL_CLOCK_GPIO | SYSCTL_CLOCK_SWM); |
|
|
|
/* turn on GPIO */ |
|
Chip_GPIO_Init(LPC_GPIO_PORT); /* Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO); */ |
|
|
|
|
|
//Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 15, IOCON_FUNC1); /* RxD */ |
|
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 0, 15); |
|
|
|
/* setup display */ |
|
u8g2_Setup_ssd1306_i2c_128x64_noname_2(&u8g2, U8G2_R0, u8x8_byte_sw_i2c, u8x8_gpio_and_delay_lpc824); |
|
u8g2_InitDisplay(&u8g2); |
|
u8g2_SetPowerSave(&u8g2, 0); |
|
|
|
|
|
for(;;) |
|
{ |
|
Chip_GPIO_SetPinOutHigh(LPC_GPIO_PORT, 0, 15); |
|
delay_micro_seconds(1000000); |
|
|
|
u8g2_FirstPage(&u8g2); |
|
do |
|
{ |
|
draw(&u8g2); |
|
} while( u8g2_NextPage(&u8g2) ); |
|
|
|
Chip_GPIO_SetPinOutLow(LPC_GPIO_PORT, 0, 15); |
|
delay_micro_seconds(1000000); |
|
} |
|
} |