小弟用OLED 0.96 显示。不知道怎么显示变化数据,如模拟量数据。请各位大哥指导。怎么显示buff_A数据。详见代码
OLED部分:
#include "oled.h"
#include "board.h"
#include <stdlib.h>
#include "codetab.h"
#define I2C_ADDR_7BIT (0x78>>1)
#define SSD1106 1 //1.3'
#define SSD1306 2 //0.96'
#define OLED_Stype SSD1306
void delay_ms(unsigned int Del_1ms) //
{
unsigned int i,j;
for(i=0;i<Del_1ms;i++)
{
for(j=0;j<30000;j++);
}
}
void delay_us(unsigned int Del_1us) //
{
unsigned int j;
while(Del_1us--)
{
for(j=0;j<10;j++);
}
}
//3õê¼»ˉOLED
void OLED_Init(void)
{
#if (OLED_Stype == SSD1106)
DEBUGOUT("IIC SSD1106 Init..."); //1.3'Æá
Write_Command(0xAE); /*display off*/
Write_Command(0x02); /*set lower column address*/
Write_Command(0x10); /*set higher column address*/
Write_Command(0x40); /*set display start line*/
Write_Command(0xB0); /*set page address*/
Write_Command(0x81); /*contract control*/
Write_Command(0x80); /*128*/
Write_Command(0xA1); /*set segment remap*/
Write_Command(0xA6); /*normal / reverse*/
Write_Command(0xA8); /*multiplex ratio*/
Write_Command(0x3F); /*duty = 1/32*/
Write_Command(0xad); /*set charge pump enable*/
Write_Command(0x8b); /* 0x8a ??VCC */
Write_Command(0x30); /*0X30---0X33 set VPP 9V liangdu!!!!*/
Write_Command(0xC8); /*Com scan direction*/
Write_Command(0xD3); /*set display offset*/
Write_Command(0x00); /* 0x20 */
Write_Command(0xD5); /*set osc division*/
Write_Command(0x80);
Write_Command(0xD9); /*set pre-charge period*/
Write_Command(0x1f); /*0x22*/
Write_Command(0xDA); /*set COM pins*/
Write_Command(0x12);//0x02 -- duanhang xianshi,0x12 -- lianxuhang xianshi!!!!!!!!!
Write_Command(0xdb); /*set vcomh*/
Write_Command(0x40);
Write_Command(0xAF); /*display ON*/
#else
DEBUGOUT("IIC SSD1306 Init...");//0.96'Æá
Write_Command(0xAE); //display off
Write_Command(0x20); //Set Memory Addressing Mode
Write_Command(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
Write_Command(0xb0); //Set Page Start Address for Page Addressing Mode,0-7
Write_Command(0xc8); //Set COM Output Scan Direction
Write_Command(0x00); //---set low column address
Write_Command(0x10); //---set high column address
Write_Command(0x40); //--set start line address
Write_Command(0x81); //--set contrast control register
Write_Command(0xff); //áá¶èμ÷½ú 0x00~0xff
Write_Command(0xa1); //--set segment re-map 0 to 127
Write_Command(0xa6); //--set normal display
Write_Command(0xa8); //--set multiplex ratio(1 to 64)
Write_Command(0x3F); //
Write_Command(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
Write_Command(0xd3); //-set display offset
Write_Command(0x00); //-not offset
Write_Command(0xd5); //--set display clock divide ratio/oscillator frequency
Write_Command(0xf0); //--set divide ratio
Write_Command(0xd9); //--set pre-charge period
Write_Command(0x22); //
Write_Command(0xda); //--set com pins hardware configuration
Write_Command(0x12);
Write_Command(0xdb); //--set vcomh
Write_Command(0x20); //0x20,0.77xVcc
Write_Command(0x8d); //--set DC-DC enable
Write_Command(0x14); //
Write_Command(0xaf); //--turn on oled panel
#endif
OLED_Fill(0xFF); //
OLED_Set_Pos(0,0);
OLED_CLS();
}
/********************************************
// fill_Picture
********************************************/
void OLED_Fill(unsigned char fill_Data)
{
unsigned char m,n;
for(m=0;m<8;m++)
{
Write_Command(0xb0+m); //page0-page1
Write_Command(0x00); //low column start address
Write_Command(0x10); //high column start address
#if (OLED_Stype == SSD1106)
for(n=0;n<132;n++)
{
Write_Data(fill_Data);
}
#else
for(n=0;n<129;n++)
{
Write_Data(fill_Data);
}
#endif
}
}
/*********************OLED??************************************/
void OLED_CLS(void)
{
unsigned char y,x;
for(y=0;y<8;y++)
{
Write_Command(0xb0+y);
Write_Command(0x01);
Write_Command(0x10);
#if (OLED_Stype == SSD1106)
for(x=0;x<132;x++)
Write_Data(0);
#else
for(x=0;x<129;x++)
Write_Data(0);
#endif
}
}
/*********************OLED éèÖÃ×ø±ê ************************************/
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
Write_Command(0xb0+y);
Write_Command(((x&0xf0)>>4)|0x10);
Write_Command((x&0x0f)|0x01);
}
/***************1|ÄüÃèêö£oÏÔê¾6*8ò»×é±ê×¼ASCII×Ö·û′® ÏÔê¾μÄ×ø±ê£¨x,y£©£¬yÎaò3·¶Î§0¡«7****************/
void OLED_P6x8Str(unsigned char x, unsigned char y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!=' ')
{
c =ch[j]-32;
#if (OLED_Stype == SSD1106)
if(x>126){x=0;y++;}
OLED_Set_Pos(x+2,y);
for(i=0;i<6;i++)
Write_Data(F6x8[c][i]);
x+=6;
j++;
#else
if(x>122){x=0;y++;}
OLED_Set_Pos(x+2,y);
for(i=0;i<6;i++)
Write_Data(F6x8[c][i]);
x+=6;
j++;
#endif
}
}
/*******************1|ÄüÃèêö£oÏÔê¾8*16ò»×é±ê×¼ASCII×Ö·û′® ÏÔê¾μÄ×ø±ê£¨x,y£©£¬yÎaò3·¶Î§0¡«7****************/
void OLED_P8x16Str(unsigned char x, unsigned char y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!=' ')
{
c =ch[j]-32;
if(x>120){x=0;y++;}
OLED_Set_Pos(x+2,y);
for(i=0;i<8;i++)
Write_Data(F8X16[c*16+i]);
OLED_Set_Pos(x+2,y+1);
for(i=0;i<8;i++)
Write_Data(F8X16[c*16+i+8]);
x+=8;
j++;
}
}
/*****************1|ÄüÃèêö£oÏÔê¾16*16μãÕó ÏÔê¾μÄ×ø±ê£¨x,y£©£¬yÎaò3·¶Î§0¡«7****************************/
void OLED_P16x16Ch(unsigned char x, unsigned char y, unsigned char N)
{
unsigned char wm=0;
unsigned int adder=32*N;
OLED_Set_Pos(x , y);
for(wm = 0;wm < 16;wm++)
{
Write_Data(F16x16[adder]);
adder += 1;
}
OLED_Set_Pos(x,y + 1);
for(wm = 0;wm < 16;wm++)
{
Write_Data(F16x16[adder]);
adder += 1;
}
}
/***********1|ÄüÃèêö£oÏÔê¾ÏÔê¾BMPí¼Æ¬128¡á64Æeê¼μã×ø±ê(x,y),xμÄ·¶Î§0¡«127£¬yÎaò3μÄ·¶Î§0¡«7*****************/
void Draw_BMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;
if(y1%8==0) y=y1/8;
else y=y1/8+1;
for(y=y0;y<y1;y++)
{
OLED_Set_Pos(x0,y);
for(x=x0;x<x1;x++)
{
Write_Data(BMP[j++]);
}
}
}
/***********1|ÄüÃèêö£oÏÔê¾oo×Ö£¬×Ö·û£¬í¼Æ¬*****************/
void OLED_Test(void)
{
unsigned char i=0;
OLED_CLS();//ÇåÆá
//éîÛúóÅáú¿Æ¼¼
OLED_P16x16Ch(16,0,0);
OLED_P16x16Ch(32,0,1);
OLED_P16x16Ch(48,0,2);
OLED_P16x16Ch(64,0,3);
OLED_P16x16Ch(80,0,4);
OLED_P16x16Ch(96,0,5);
for(i=0; i<8; i++)//í¨1yμãÕûÏÔê¾oo×Ö -- i±íê¾×Ö±íêy×éμÄλÖÃ
{
OLED_P16x16Ch(i*16,2,i+6);
OLED_P16x16Ch(i*16,4,i+14);
//OLED_P16x16Ch(i*32,6,i+22);
}
for(i=0; i<3; i++)//í¨1yμãÕûÏÔê¾oo×Ö -- i±íê¾×Ö±íêy×éμÄλÖÃ
{
//OLED_P16x16Ch(48+i*16,6,i+22);
OLED_P16x16Ch(40+i*16,6,i+22);
}
delay_ms(3000);
OLED_CLS();//ÇåÆá
OLED_P8x16Str(52,0,"SAE");//μúò»DD -- 8x16μÄÏÔê¾μ¥ÔaÏÔê¾ASCIIÂë
OLED_P8x16Str(40,3,"SG MCU");
OLED_P6x8Str(16,6,"AEROSPACE ENERGY");
OLED_P6x8Str(25,7,"www.sae.sh.cn");
delay_ms(3000);
OLED_CLS();
}
void OLED_dis(void)
{
OLED_P8x16Str(52,0,"VALUE");//μúò»DD -- 8x16μÄÏÔê¾μ¥ÔaÏÔê¾ASCIIÂë
delay_ms(500);
OLED_CLS();
主程序及ADC部分:
#include "board.h"
#include <stdlib.h>
#include "romapi_adc.h"
#include "oled.h"
#define I2C_NUM 2
#if (I2C_NUM == 2)
/** I2C interface setup */
#define I2C_ADDR_7BIT (0x78>>1) //IIC ′óé豸μØÖ·
#define LPC_I2C_PORT LPC_I2C2
#define LPC_I2CM_CLOCK SYSCON_CLOCK_I2C2
#define LPC_I2CM_RESET RESET_I2C2
#elif (I2C_NUM == 1)
#define I2C_ADDR_7BIT (0x78>>1) //IIC ′óé豸μØÖ·
#define LPC_I2C_PORT LPC_I2C1
#define LPC_I2CM_CLOCK SYSCON_CLOCK_I2C1
#define LPC_I2CM_RESET RESET_I2C1
#elif (I2C_NUM == 0)
#define I2C_ADDR_7BIT (0x78>>1) //IIC ′óé豸μØÖ·
#define LPC_I2C_PORT LPC_I2C0
#define LPC_I2CM_CLOCK SYSCON_CLOCK_I2C0
#define LPC_I2CM_RESET RESET_I2C0
#endif
/* 400KHz I2C bit-rate */
#define I2C_BITRATE (400000)
/* ROM driver handle for I2C master */
static ROM_I2CM_HANDLE_T i2cmHandle;
/* I2C driver context area */
static uint32_t drvData[64];
/* Made global so data can be seen in the debuuger */
uint8_t rx[2];
uint8_t tx[2];
uint32_t actualRate;
ROM_I2CM_XFER_T mXfer;
/* Initializes pin muxing for I2C interface - note that SystemInit() may
already setup your pin muxing at system startup */
static void Init_I2C_PinMux(void)
{
#if defined(BOARD_NXP_LPCXPRESSO_54102)
/* Connect the I2C_SDA and I2C_SCL signals to port pins */
#if (I2C_NUM == 2)
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 27, (IOCON_FUNC1 | IOCON_DIGITAL_EN)); /* I2C2 */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 28, (IOCON_FUNC1 | IOCON_DIGITAL_EN)); /* I2C2 */
#elif (I2C_NUM == 1)
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 25, (IOCON_FUNC1 | IOCON_DIGITAL_EN)); /* I2C1 */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 26, (IOCON_FUNC1 | IOCON_DIGITAL_EN)); /* I2C1 */
#elif (I2C_NUM == 0)
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 23, (IOCON_FUNC1 | IOCON_DIGITAL_EN)); /* I2C0 */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 24, (IOCON_FUNC1 | IOCON_DIGITAL_EN)); /* I2C0 */
#else
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 27, (IOCON_FUNC0 | IOCON_GPIO_MODE|IOCON_MODE_PULLUP)); /* GPIO */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 28, (IOCON_FUNC0 | IOCON_GPIO_MODE|IOCON_MODE_PULLUP)); /* GPIO */
#endif
#else
/* Configure your own I2C pin muxing here if needed */
#warning "No I2C pin muxing defined"
#endif
}
/* Display error string and spin */
static void errorOut(char *errStr)
{
DEBUGOUT(errStr);
while (1) {}
}
/*****************************************************************************
* Public functions
****************************************************************************/
void Write_Command(unsigned char cmd)
{
unsigned char buffer[2];
buffer[0]=0x00;
buffer[1]=cmd;
mXfer.slaveAddr = I2C_ADDR_7BIT;
mXfer.rxBuff = rx;
mXfer.txBuff = buffer;
mXfer.txSz = 2;
mXfer.rxSz = 0;
/* I2C master driver will block if blocking flag is used */
mXfer.flags = ROM_I2CM_FLAG_BLOCKING;
/* Start transfer and wait for completion */
ROM_I2CM_Transfer(i2cmHandle, &mXfer);
}
void Write_Data(unsigned char data)
{
unsigned char buffer[2];
buffer[0]=0x40;
buffer[1]=data;
mXfer.slaveAddr = I2C_ADDR_7BIT;
mXfer.rxBuff = rx;
mXfer.txBuff = buffer;
mXfer.txSz = 2;
mXfer.rxSz = 0;
/* I2C master driver will block if blocking flag is used */
mXfer.flags = ROM_I2CM_FLAG_BLOCKING;
/* Start transfer and wait for completion */
ROM_I2CM_Transfer(i2cmHandle, &mXfer);
}
/******************************************************************************************************************************/
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* Get 32 samples for 3 channels CH0, CH3 and CH4 */
#define NUM_SAMPLES_A 6
#define NUM_CHANNELS_A 2
#define SAMPLE_COUNT_A 16/* Run 16 times */
/* SEQ_A enables channels 0, 3 and 4; Uses software trigger; doesn't use BURST */
#define ADC_SEQ_A_CONFIG
TRIG_SOFT | /* Software trigger for SEQ_A */
TRIG_POL_POS | /* UM recommends this for S/W trigger */
MODE_EOS | /* Event generated after Sequence done */
ENABLE_CH(0) | ENABLE_CH(1) /* Associate channels 0, 2 and 3 to SEQ_A */
/* General ADC configuration */
#define ADC_CONFIG
MODE_SYNC | /* Enable synchronous mode */
RESOL_12BIT | /* Use 12-Bit resolution */
SAMPLE_TIME(0) /* No extra clocks */
/* Buffer pointers */
static uint16_t buff_A[NUM_SAMPLES_A][NUM_CHANNELS_A]; /* Memory to hold samples for SEQ_A */
static uint16_t(*volatile pBufA)[NUM_CHANNELS_A]; /* Pointer to current active SEQ_A buffer */
/* ADC Driver context memory */
#define RAMBLOCK_H 60
static uint32_t start_of_ram_block0[RAMBLOCK_H];
/* ADC ROM Driver Handle */
static ADC_HANDLE_T *hADC;
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
static void ADC_PinMuxSetup(void)
{
#if defined(BOARD_NXP_LPCXPRESSO_54102)
/* All pins to inactive, neither pull-up nor pull-down. */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 29, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 30, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 31, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 0, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 1, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 2, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 3, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 4, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 5, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 6, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 7, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 8, IOCON_MODE_INACT | IOCON_FUNC1 | IOCON_ANALOG_EN);
#else
#warning "No ADC setup for this example"
#endif
}
/* Initialize the ADC ROM Driver */
static int adcrom_init(void)
{
volatile int size_in_bytes;
ADC_PinMuxSetup();
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_ADC0 | SYSCON_PDRUNCFG_PD_VDDA_ENA | SYSCON_PDRUNCFG_PD_VREFP);
/* ê1ÄüíaΧê±Öó*/
Chip_Clock_EnablePeriphClock(SYSCON_CLOCK_ADC0);
/* ADCê±ÖóÔ′*/
Chip_Clock_SetADCClockSource(SYSCON_ADCCLKSELSRC_MAINCLK);
/* ADCê±Öó·ÖÆμÆ÷ */
Chip_Clock_SetADCClockDiv(0x1);
/*»ñμÃADCÇy¶ˉ3ìDòéÏÏÂÎÄDèòa×Ö½úμÄÄú′æ′óD¡*/
size_in_bytes = ROM_ADC_GetMemSize();
if (RAMBLOCK_H < (size_in_bytes / 4)) {
return 1;
}
/*Initialize ADC ROM Driver3õê¼»ˉADCÇy¶ˉÆ÷ROM_ADC_Init*/
hADC = ROM_ADC_Init(start_of_ram_block0, LPC_ADC_BASE, 0);
return 0;
}
/* Configure ADC ROM Driver and pripheral */
static int adcrom_config(void)
{
ADC_CFG_T cfg = {
ADC_SEQ_A_CONFIG,
ADC_CONFIG,
0 /* Divider will be calculated during run time */
};
cfg.clkDiv = 0xFF;
/* Configure the ADC */
ROM_ADC_Configure(hADC, &cfg);
/* Calibrate the ADC */
if (ROM_ADC_Calibrate(hADC, Chip_Clock_GetSystemClockRate()) != LPC_OK) {
DEBUGSTR("ERROR: Calibrating ADC
");
}
DEBUGSTR("ADC Initialized and Calibrated successfully!
");
/* Channel configurations */
ROM_ADC_ConfigureCh(hADC, 0, ADC_CH_THRES_DATA | ADC_CH_THRES_SEL1 | ADC_CH_THRES_CROSSING);
return 0;
}
/* Call-Back function for ADC Start/Stop event */
static void adcrom_startstop(ADC_HANDLE_T hADC, ADC_CBINDEX_T idx, void *arg)
{
switch (idx) {
case ADC_START_SEQ_A:
DEBUGSTR("Sequence A Started!
");
break;
case ADC_STOP_SEQ_A:
DEBUGSTR("Sequence A Stopped!
");
break;
default:
break;
}
}
/* Print content of buffer_A to UART */
static void print_buf_A(uint32_t cnt)
{
int i, j;
uint16_t(*buf)[NUM_CHANNELS_A] = pBufA;
pBufA = 0;
if (!buf) {
return;
}
for (i = 0; i < cnt; i++) {
DEBUGSTR("SEQ_A: ");
for (j = 0; j < NUM_CHANNELS_A; j++) {
DEBUGOUT("%x ", buf[i][j]);
}
DEBUGSTR("
");
}
}
/* Register ADC event Callback functions */
static void adcrom_regcb(void)
{
ROM_ADC_RegisterCB(hADC, ADC_STOP_SEQ_A, adcrom_startstop); /* SEQ_A Stop */
ROM_ADC_RegisterCB(hADC, ADC_START_SEQ_A, adcrom_startstop);/* SEQ_A Start */
}
/*****************************************************************************
* Public functions
****************************************************************************/
/* PININT1 IRQ handler */
void PIN_INT1_IRQHandler(void)
{
Chip_PININT_ClearIntStatus(LPC_PININT, PININTCH(PININTSELECT1));
}
/**
* @brief Main routine for I2C example
* @return Function should not exit
*/
int main(void)
{
uint32_t memSize, *devMem;
ROM_I2CM_INIT_T i2cmInit;
/* Generic Initialization */
SystemCoreClockUpdate();
Board_Init();
/* Setup I2C pin muxing, enable I2C clock and reset I2C peripheral */
Init_I2C_PinMux();
Chip_Clock_EnablePeriphClock(LPC_I2CM_CLOCK);
Chip_SYSCON_PeriphReset(LPC_I2CM_RESET);
/* Get needed size for driver context memory */
memSize = ROM_I2CM_GetMemSize();
if (memSize > sizeof(drvData)) {
errorOut("Can't allocate memory for I2C driver context
");
}
devMem = drvData; /* Or just use malloc(memSize) */
/* Initialize driver */
i2cmInit.pUserData = NULL;
i2cmInit.base = (uint32_t) LPC_I2C_PORT;
i2cmHandle = ROM_I2CM_Init(devMem, &i2cmInit);
if (i2cmHandle == NULL) {
/* Error initializing I2C */
errorOut("Error initializing ROM
");
}
/* Set I2C clock rate */
actualRate = ROM_I2CM_SetClockRate(i2cmHandle,
Chip_Clock_GetAsyncSyscon_ClockRate(), I2C_BITRATE);
DEBUGOUT("Actual I2C master rate = %dHz
", actualRate);
OLED_Init();
OLED_Fill(0xFF);
OLED_Test();
/* Initialize the PinMux and setup the memory for ROM driver */
if (adcrom_init()) {
return 1;
}
/* Configure the ADC */
if (adcrom_config()) {
return 1;
}
while (1) {
adcrom_regcb(); /* Register call-back functions */
/* Start SEQ_A */
if (ROM_ADC_StartConversion(hADC, ADC_SEQ_A, &buff_A[0][0], NUM_SAMPLES_A * NUM_CHANNELS_A) != LPC_OK) {
DEBUGSTR("ERROR: Starting conversion in SEQ_A
");
}
/* Wait for buffer to be filled up with required number of samples */
if (ROM_ADC_Handler(hADC, ADC_EV_SEQ_A_POLL) == LPC_OK) {
pBufA = buff_A;
print_buf_A(NUM_SAMPLES_A); /* Print samples from the buffer */
}
OLED_dis();
}
}
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