void ST7565_st7565_init(void) {
// set pin directions
// pinMode(sid, OUTPUT);
// pinMode(sclk, OUTPUT);
// pinMode(a0, OUTPUT);
// pinMode(rst, OUTPUT);
// pinMode(cs, OUTPUT);
// toggle RST low to reset; CS low so it'll listen to us
// if (cs > 0)
// digitalWrite(cs, LOW);
GPIO_ResetBits(GPIOB, GPIO_Pin_9);
// digitalWrite(rst, LOW);
GPIO_ResetBits(GPIOB, GPIO_Pin_10);
DelaymS(500);
// digitalWrite(rst, HIGH);
GPIO_SetBits(GPIOB, GPIO_Pin_10);
// LCD bias select
ST7565_st7565_command(CMD_SET_BIAS_7);
// ADC select
ST7565_st7565_command(CMD_SET_ADC_NORMAL);
// SHL select
ST7565_st7565_command(CMD_SET_COM_NORMAL);
// Initial display line
ST7565_st7565_command(CMD_SET_DISP_START_LINE);
// turn on voltage converter (VC=1, VR=0, VF=0)
ST7565_st7565_command(CMD_SET_POWER_CONTROL | 0x4);
// wait for 50% rising
DelaymS(50);
// turn on voltage regulator (VC=1, VR=1, VF=0)
ST7565_st7565_command(CMD_SET_POWER_CONTROL | 0x6);
// wait >=50ms
DelaymS(50);
// turn on voltage follower (VC=1, VR=1, VF=1)
ST7565_st7565_command(CMD_SET_POWER_CONTROL | 0x7);
// wait
DelaymS(10);
// set lcd operating voltage (regulator resistor, ref voltage resistor)
ST7565_st7565_command(CMD_SET_RESISTOR_RATIO | 0x6);
// initial display line
// set page address
// set column address
// write display data
// set up a bounding box for screen updates
ST7565_updateBoundingBox(0, 0, LCDWIDTH-1, LCDHEIGHT-1);
}
void dht11_update(void)
{
int flag = 1;
unsigned char dat1, dat2, dat3, dat4, dat5, ck;
//主机拉低18ms
COM_CLR;
DelaymS(18);
//COM_IN;
COM_SET;
flag = 0;
while (COM_R && ++flag);
if (flag == 0) return;
//总线由上拉电阻拉高 主机延时20us
//主机设为输入 判断从机响应信号
//判断从机是否有低电平响应信号 如不响应则跳出，响应则向下运行
flag = 0;
while (!COM_R && ++flag);
if (flag == 0) return;
flag = 0;
while (COM_R && ++flag);
if (flag == 0) return;
dat1 = dht11_read_byte();
dat2 = dht11_read_byte();
dat3 = dht11_read_byte();
dat4 = dht11_read_byte();
dat5 = dht11_read_byte();
ck = dat1 + dat2 + dat3 + dat4;
if (ck == dat5) {
sTemp = dat3;
sHumidity = dat1;
}
#if 1
// printf("%02x, %02x, %02x, %02x %02x\r\n",
// dat1, dat2, dat3, dat4, dat5);
printf("湿度: %u%% 温度: %u℃ \r\n", dat1, dat3);
gdat1=dat1;
gdat2=dat3;
#endif
}
void ST7565_display(void) {
uint8_t col, maxcol, p;
/*
Serial.print("Refresh ("); Serial.print(xUpdateMin, DEC);
Serial.print(", "); Serial.print(xUpdateMax, DEC);
Serial.print(","); Serial.print(yUpdateMin, DEC);
Serial.print(", "); Serial.print(yUpdateMax, DEC); Serial.println(")");
*/
for(p = 0; p < 8; p++) {
/*
putstring("new page! ");
uart_putw_dec(p);
putstring_nl("");
*/
#ifdef enablePartialUpdate
// check if this page is part of update
if ( yUpdateMin >= ((p+1)*8) ) {
continue; // nope, skip it!
}
if (yUpdateMax < p*8) {
break;
}
#endif
DelaymS(1);
ST7565_st7565_command(CMD_SET_PAGE | pagemap[p]);
DelaymS(1);//DelayuS(100);
#ifdef enablePartialUpdate
col = xUpdateMin;
maxcol = xUpdateMax;
#else
// start at the beginning of the row
col = 0;
maxcol = LCDWIDTH;
#endif
ST7565_st7565_command(CMD_SET_COLUMN_LOWER | ((col+ST7565_STARTBYTES) & 0xf));
DelaymS(1);
ST7565_st7565_command(CMD_SET_COLUMN_UPPER | (((col+ST7565_STARTBYTES) >> 4) & 0x0F));
DelaymS(1);
ST7565_st7565_command(CMD_RMW);
DelaymS(1);//DelayuS(100);
for(; col < maxcol; col++) {
//uart_putw_dec(col);
//uart_putchar(' ');
ST7565_st7565_data(st7565_buffer[(128*p)+col]);
//DelayuS(10);
}
}
#ifdef enablePartialUpdate
xUpdateMin = LCDWIDTH;// - 1;
xUpdateMax = 0;
yUpdateMin = LCDHEIGHT;//-1;
yUpdateMax = 0;
#endif
}
