Diff: lpc1768-this/periphs.c

Revision:

2:5229cab71d69

Parent:

0:b843d647695c

Child:

9:d957af50fdc2

--- a/lpc1768-this/periphs.c	Tue Jan 19 19:01:14 2021 +0000
+++ b/lpc1768-this/periphs.c	Wed Feb 10 17:26:07 2021 +0000
@@ -1,11 +1,16 @@
-#define PCONP    (*((volatile unsigned *) 0x400FC0C4))
-#define PCLKSEL0 (*((volatile unsigned *) 0x400FC1A8))
-#define PCLKSEL1 (*((volatile unsigned *) 0x400FC1AC))
-#define PINSEL0  (*((volatile unsigned *) 0x4002C000))
-#define PINSEL1  (*((volatile unsigned *) 0x4002C004))
-#define PINSEL2  (*((volatile unsigned *) 0x4002C008))
-#define PINSEL3  (*((volatile unsigned *) 0x4002C00C))
-
+#define PCONP       (*((volatile unsigned *) 0x400FC0C4))
+#define PCLKSEL0    (*((volatile unsigned *) 0x400FC1A8))
+#define PCLKSEL1    (*((volatile unsigned *) 0x400FC1AC))
+#define PINSEL0     (*((volatile unsigned *) 0x4002C000))
+#define PINSEL1     (*((volatile unsigned *) 0x4002C004))
+#define PINSEL2     (*((volatile unsigned *) 0x4002C008))
+#define PINSEL3     (*((volatile unsigned *) 0x4002C00C))
+#define PINSEL4     (*((volatile unsigned *) 0x4002C010))
+#define PINMODE0    (*((volatile unsigned *) 0x4002C040))
+#define PINMODE4    (*((volatile unsigned *) 0x4002C050))
+#define PINMODE_OD0 (*((volatile unsigned *) 0x4002C068))
+#define PINMODE_OD1 (*((volatile unsigned *) 0x4002C06C))
+#define PINMODE_OD2 (*((volatile unsigned *) 0x4002C070))
 
 void PeriphsInit (void)
 {
@@ -14,10 +19,12 @@
     PCONP |= 1 <<  1; //TIMER0
     PCONP |= 1 <<  2; //TIMER1
     PCONP |= 1 <<  3; //UART0
+    PCONP |= 1 <<  6; //PWM1
     PCONP |= 1 <<  9; //RTC
     PCONP |= 1 << 10; //SSP1
     PCONP |= 1 << 15; //GPIO
     PCONP |= 1 << 16; //RIT
+    PCONP |= 1 << 19; //I2C1
     PCONP |= 1 << 30; //ENET                 
 
     //Peripheral clock must be selected before PLL0 enabling and connecting; default is 00 divide by 4; need 01 to have divide by 1
@@ -25,10 +32,16 @@
     PCLKSEL0 |= 1 <<  2;  //TIM0
     PCLKSEL0 |= 1 <<  4;  //TIM1
     PCLKSEL0 |= 1 <<  6;  //UART0
+    PCLKSEL0 |= 1 << 12;  //PWM1
     PCLKSEL0 |= 1 << 20;  //SSP1
+    
+    PCLKSEL1  = 0;
+    PCLKSEL1 |= 1 << 20; //I2C1
 
     //Pin functions table 80.
     PINSEL0  = 0;
+    PINSEL0 |= 3U <<  0; //P0.00 11 SDA1   I2C1
+    PINSEL0 |= 3U <<  2; //P0.01 11 SCL1   I2C1
     PINSEL0 |= 1U <<  4; //P0.02 01 TXD0  UART0
     PINSEL0 |= 1U <<  6; //P0.03 01 RXD0  UART0
     PINSEL0 |= 2U << 14; //P0.07 10 SCK1   SSP1
@@ -36,7 +49,7 @@
     PINSEL0 |= 2U << 18; //P0.09 10 MOSI1  SSP1
     
     PINSEL1  = 0;
-    
+
     PINSEL2  = 0;
     PINSEL2 |= 1U <<  0; //P1.00 01 ENET_TXD0
     PINSEL2 |= 1U <<  2; //P1.01 01 ENET_TXD1
@@ -50,4 +63,24 @@
     PINSEL3  = 0;
     PINSEL3 |= 1U <<  0; //P1.16 01 ENET_MDC
     PINSEL3 |= 1U <<  2; //P1.17 01 ENET_MDIO
+    //PINSEL3 |= 2U <<  4; //P1.18 10 PWM1.1
+    
+    PINSEL4  = 0;
+    PINSEL4 |= 1U << 0;  //P2.00 01 PWM1.1
+    
+    
+    PINMODE0  = 0;
+    PINMODE0 |= 2U << 0; //P0.00 10 SDA1    I2C1 Neither pull up nor pull down
+    PINMODE0 |= 2U << 2; //P0.01 10 SCL1    I2C1 Neither pull up nor pull down
+    
+    PINMODE_OD0  = 0;
+    PINMODE_OD0 |= 1 << 0; //P0.00 10 SDA1    I2C1 Open drain mode
+    PINMODE_OD0 |= 1 << 1; //P0.01 10 SCL1    I2C1 Open drain mode
+    
+    
+    PINMODE4  = 0;
+    //PINMODE4 |= 2U << 0; //P2.00 10 PWM1.1 p26 Neither pull up nor pull down
+    
+    PINMODE_OD2  = 0;
+    //PINMODE_OD2 |= 1 << 0; //P2.00 10 PWM1.1 p26  Open drain mode
 }