frederic blanc
STMPE811 TouchScreen MCB1700
Revision 1:a1e34dd1f0a0, committed 2015-02-13
- Comitter:
- fblanc
- Date:
- Fri Feb 13 14:34:09 2015 +0000
- Parent:
- 0:f69f52bd2222
- Child:
- 2:004e29745d5e
- Commit message:
- TS_I2C.c -> TS_I2C.cpp
Changed in this revision
| TS_I2C.c | Show diff for this revision Revisions of this file |
| TS_I2C.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/TS_I2C.c Mon Mar 12 11:57:30 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,75 +0,0 @@
-/**
-* @file STM811.c
-* @brief library TouchScreen STM811
-* @author Frederic BLANC
-*/
-
-
-#include "TS.h"
-I2C i2c(P0_10, P0_11);//P0_10 SDA2 P0_11 SCL2
-int TS_Init (void) {
- int err=0;
-// err+=TS_Write (TS_TSC_CTRL, 0x03); /* TSC_CTRL register X, Y only mode, enable */
-// err+=TS_Write (TS_SYS_CTRL1, 0x02); /* Reset Touch-screen controller */
-// wait_ms(10); /* Wait minimum of 10ms */
- err+=TS_Write (TS_SYS_CTRL2, SYS_CTRL2_TS_OFF | SYS_CTRL2_GPIO_OFF); /* 1.Enable TSC and ADC */
- err+=TS_Write (TS_INT_EN, INT_TOUCH_DET); /* 2.Enable Touch detect, FIFO */
- err+=TS_Write (TS_ADC_CTRL1, 0x69); /* 3.Set sample time , 12-bit mode */
- wait_ms(2); /* Wait minimum of 2ms */
- err+=TS_Write (TS_ADC_CTRL2, 0x01); /* 4.ADC frequency 3.25 MHz */
- err+=TS_Write (TS_GPIO_AF, 0x00); /* 5. ALL IO in ADC/TS mode */
- err+=TS_Write (TS_TSC_CFG, 0xF5); /* 6. Set TSC_CFG register */
- err+=TS_Write (TS_FIFO_TH, 0x01); /* 6a.Threshold for FIFO */
- err+=TS_Write (TS_FIFO_STA, 0x01); /* 7.FIFO reset */
- err+=TS_Write (TS_FIFO_STA, 0x00); /* 8.FIFO not reset */
- err+=TS_Write (TS_TSC_FRACTION_Z, 0x07); /* 9.Fraction z */
- err+=TS_Write (TS_TSC_I_DRIVE, 0x01); /* 10.Drive 50 mA typical */
- err+=TS_Write (TS_TSC_CTRL, 0x01); /* 11.Enable TSC */
- err+=TS_Write (TS_INT_STA, 0xFF); /* 12.Clear interrupt status */
- err+=TS_Write (TS_INT_CTRL, 0x01); /* 13.Enable global interrupt */
-
- return err;
-}
-
-int TS_Write (unsigned char reg,unsigned int val) {
- int err=0;
- int addr =0x82;
- char cmd[2];
- cmd[0] = reg; // Register to be written
- cmd[1] = val;
- err+=i2c.write(addr, cmd,2); // Send addr cmd val
- return err;
-}
-
-unsigned int TS_Read (unsigned char reg, int num) {
- int addr =(0x82 | 0);
- unsigned int idata;
- char* data=(char*) &idata;
- data[1] =data[2] =data[3] =0;
- data[0] = reg; // Register to be written
- i2c.write(addr, data,1); // Send command string
- do{
- i2c.read (addr, &data[--num], 1);
- }while (num);
- return idata;
-
-}
-
-int ts_XY( int *x,int *y,int *z) {
- int tch_z = 0;
- int tch_int = 0;
- int tch_smpl = 0;
- tch_int = TS_Read (TS_INT_STA, 1); /* Read Touch-screen interrupt status */
- if (tch_int & 2) { /* If FIFO is above threshold */
- tch_smpl = TS_Read (TS_FIFO_SIZE, 1);
- while (--tch_smpl) {
- TS_Read (TS_TSC_DATA_NAI, 4);
- }
- }
- tch_z = TS_Read (TS_TSC_DATA_NAI, 4); /* Read coordinates */
- *x = (tch_z >> 20) & 0x00000FFF;
- *y = (tch_z >> 8) & 0x00000FFF;
- *z = (tch_z >> 0) & 0x0000000F;
- return 0;
-
-}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TS_I2C.cpp Fri Feb 13 14:34:09 2015 +0000
@@ -0,0 +1,75 @@
+/**
+* @file STM811.c
+* @brief library TouchScreen STM811
+* @author Frederic BLANC
+*/
+
+
+#include "TS.h"
+I2C i2c(P0_10, P0_11);//P0_10 SDA2 P0_11 SCL2
+int TS_Init (void) {
+ int err=0;
+// err+=TS_Write (TS_TSC_CTRL, 0x03); /* TSC_CTRL register X, Y only mode, enable */
+// err+=TS_Write (TS_SYS_CTRL1, 0x02); /* Reset Touch-screen controller */
+// wait_ms(10); /* Wait minimum of 10ms */
+ err+=TS_Write (TS_SYS_CTRL2, SYS_CTRL2_TS_OFF | SYS_CTRL2_GPIO_OFF); /* 1.Enable TSC and ADC */
+ err+=TS_Write (TS_INT_EN, INT_TOUCH_DET); /* 2.Enable Touch detect, FIFO */
+ err+=TS_Write (TS_ADC_CTRL1, 0x69); /* 3.Set sample time , 12-bit mode */
+ wait_ms(2); /* Wait minimum of 2ms */
+ err+=TS_Write (TS_ADC_CTRL2, 0x01); /* 4.ADC frequency 3.25 MHz */
+ err+=TS_Write (TS_GPIO_AF, 0x00); /* 5. ALL IO in ADC/TS mode */
+ err+=TS_Write (TS_TSC_CFG, 0xF5); /* 6. Set TSC_CFG register */
+ err+=TS_Write (TS_FIFO_TH, 0x01); /* 6a.Threshold for FIFO */
+ err+=TS_Write (TS_FIFO_STA, 0x01); /* 7.FIFO reset */
+ err+=TS_Write (TS_FIFO_STA, 0x00); /* 8.FIFO not reset */
+ err+=TS_Write (TS_TSC_FRACTION_Z, 0x07); /* 9.Fraction z */
+ err+=TS_Write (TS_TSC_I_DRIVE, 0x01); /* 10.Drive 50 mA typical */
+ err+=TS_Write (TS_TSC_CTRL, 0x01); /* 11.Enable TSC */
+ err+=TS_Write (TS_INT_STA, 0xFF); /* 12.Clear interrupt status */
+ err+=TS_Write (TS_INT_CTRL, 0x01); /* 13.Enable global interrupt */
+
+ return err;
+}
+
+int TS_Write (unsigned char reg,unsigned int val) {
+ int err=0;
+ int addr =0x82;
+ char cmd[2];
+ cmd[0] = reg; // Register to be written
+ cmd[1] = val;
+ err+=i2c.write(addr, cmd,2); // Send addr cmd val
+ return err;
+}
+
+unsigned int TS_Read (unsigned char reg, int num) {
+ int addr =(0x82 | 0);
+ unsigned int idata;
+ char* data=(char*) &idata;
+ data[1] =data[2] =data[3] =0;
+ data[0] = reg; // Register to be written
+ i2c.write(addr, data,1); // Send command string
+ do{
+ i2c.read (addr, &data[--num], 1);
+ }while (num);
+ return idata;
+
+}
+
+int ts_XY( int *x,int *y,int *z) {
+ int tch_z = 0;
+ int tch_int = 0;
+ int tch_smpl = 0;
+ tch_int = TS_Read (TS_INT_STA, 1); /* Read Touch-screen interrupt status */
+ if (tch_int & 2) { /* If FIFO is above threshold */
+ tch_smpl = TS_Read (TS_FIFO_SIZE, 1);
+ while (--tch_smpl) {
+ TS_Read (TS_TSC_DATA_NAI, 4);
+ }
+ }
+ tch_z = TS_Read (TS_TSC_DATA_NAI, 4); /* Read coordinates */
+ *x = (tch_z >> 20) & 0x00000FFF;
+ *y = (tch_z >> 8) & 0x00000FFF;
+ *z = (tch_z >> 0) & 0x0000000F;
+ return 0;
+
+}