diff options
| author | Pierre Ficheux <pierre.ficheux@openwide.fr> | 2014-08-29 08:16:23 -0500 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2014-08-29 13:33:34 -0500 |
| commit | 944b4f1f73e8f173fd9c3efaaf79a4b542375106 (patch) | |
| tree | e221973afeb3a0b9971dde5d45ecc8eddd033815 | |
| parent | 61d2a1f2e8ddb992f98e80cd503879226730eeec (diff) | |
example-v2 patch for RPi B+ (led)
Hi,
Here is the patch for "example-v2" project to support Raspberry Pi B+ as led number is now 47 instead of 16 on RPi B.
regards
--
Pierre FICHEUX -/- CTO OW/OWI, France -\- pierre.ficheux@openwide.fr
http://ingenierie.openwide.fr
http://www.linuxembedded.fr
I would love to change the world, but they won't give me the source code
From e4d8edfb8650207641bc8e2716cf15ce958ede0f Mon Sep 17 00:00:00 2001
From: Pierre FICHEUX <pierre.ficheux@openwide.fr>
Date: Fri, 29 Aug 2014 15:11:41 +0200
Subject: [PATCH] Added led blink support for RPi B+
| -rw-r--r-- | led/led.h | 16 |
1 files changed, 12 insertions, 4 deletions
@@ -67,10 +67,18 @@ uint8_t MPC8313_LED_Count; #define OUT_GPIO(g) *(gpio+((g)/10)) |= (1<<(((g)%10)*3)) #define GPIO_SET *(gpio+7) // sets bits which are 1 ignores bits which are 0 #define GPIO_CLR *(gpio+10) // clears bits which are 1 ignores bits which are 0 - -#define LED_INIT() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; OUT_GPIO(16);} while(0) -#define LED_ON() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; GPIO_CLR = 1 << 16;} while(0) -#define LED_OFF() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; GPIO_SET = 1 << 16;} while(0) +// For GPIO# >= 32 (RPi B+) +#define GPIO_SET_EXT *(gpio+8) // sets bits which are 1 ignores bits which are 0 +#define GPIO_CLR_EXT *(gpio+11) // clears bits which are 1 ignores bits which are 0 + +// RPi B +//#define LED_INIT() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; OUT_GPIO(16);} while(0) +//#define LED_ON() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; GPIO_CLR = 1 << 16;} while(0) +//#define LED_OFF() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; GPIO_SET = 1 << 16;} while(0) +// RPi B+ => led 47 +#define LED_INIT() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; OUT_GPIO(47);} while(0) +#define LED_ON() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; GPIO_CLR_EXT = 1 << (47 % 32);} while(0) +#define LED_OFF() do { unsigned int *gpio = (unsigned int *)BCM2835_GPIO_REGS_BASE; GPIO_SET_EXT = 1 << (47 % 32);} while(0) #else /* default case is to print */ |