Remove legacy examples

Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>

3 files changed, 0 insertions, 177 deletions

diff --git a/software/led_fade/.unsupported-boards b/software/led_fade/.unsupported-boards
deleted file mode 100644
index f9e9897..0000000
--- a/software/led_fade/.unsupported-boards
+++ /dev/null
@@ -1,4 +0,0 @@
-freedom-e300-arty
-coreplexip-e31-arty
-coreplexip-e51-arty
-freedom-e300-arty
diff --git a/software/led_fade/Makefile b/software/led_fade/Makefile
deleted file mode 100644
index bbdba66..0000000
--- a/software/led_fade/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-TARGET = led_fade
-C_SRCS += led_fade.c
-CFLAGS += -O2 -fno-builtin-printf -DNO_INIT
-
-BSP_BASE = ../../bsp
-include $(BSP_BASE)/env/common.mk
diff --git a/software/led_fade/led_fade.c b/software/led_fade/led_fade.c
deleted file mode 100644
index 9b50eda..0000000
--- a/software/led_fade/led_fade.c
+++ /dev/null
@@ -1,167 +0,0 @@
-// See LICENSE for license details.
-
-// This is the program which ships on the HiFive1
-// board, executing out of SPI Flash at 0x20400000.
-
-#include <stdint.h>
-#include "platform.h"
-
-#ifndef _SIFIVE_HIFIVE1_H
-#error "'led_fade' is designed to run on HiFive1 and/or E300 Arty Dev Kit."
-#endif
-
-static const char led_msg[] = "\a\n\r\n\r\
-55555555555555555555555555555555555555555555555\n\r\
-5555555 Are the LEDs Changing? [y/n]  555555555\n\r\
-55555555555555555555555555555555555555555555555\n\r";
-
-static const char sifive_msg[] = "\n\r\
-\n\r\
-                SIFIVE, INC.\n\r\
-\n\r\
-         5555555555555555555555555\n\r\
-        5555                   5555\n\r\
-       5555                     5555\n\r\
-      5555                       5555\n\r\
-     5555       5555555555555555555555\n\r\
-    5555       555555555555555555555555\n\r\
-   5555                             5555\n\r\
-  5555                               5555\n\r\
- 5555                                 5555\n\r\
-5555555555555555555555555555          55555\n\r\
- 55555           555555555           55555\n\r\
-   55555           55555           55555\n\r\
-     55555           5           55555\n\r\
-       55555                   55555\n\r\
-         55555               55555\n\r\
-           55555           55555\n\r\
-             55555       55555\n\r\
-               55555   55555\n\r\
-                 555555555\n\r\
-                   55555\n\r\
-                     5\n\r\
-\n\r\
-               'led_fade' Demo \n\r\
-\n\r";
-
-static void _putc(char c) {
-  while ((int32_t) UART0_REG(UART_REG_TXFIFO) < 0);
-  UART0_REG(UART_REG_TXFIFO) = c;
-}
-
-int _getc(char * c){
-  int32_t val = (int32_t) UART0_REG(UART_REG_RXFIFO);
-  if (val > 0) {
-    *c =  val & 0xFF;
-    return 1;
-  }
-  return 0;
-}
-
-
-static void _puts(const char * s) {
-  while (*s != '\0'){
-    _putc(*s++);
-  }
-}
-
-
-int main (void){
-
-  // Make sure the HFROSC is on before the next line:
-  PRCI_REG(PRCI_HFROSCCFG) |= ROSC_EN(1);
-  // Run off 16 MHz Crystal for accuracy. Note that the
-  // first line is 
-  PRCI_REG(PRCI_PLLCFG) = (PLL_REFSEL(1) | PLL_BYPASS(1));
-  PRCI_REG(PRCI_PLLCFG) |= (PLL_SEL(1));
-  // Turn off HFROSC to save power
-  PRCI_REG(PRCI_HFROSCCFG) &= ~(ROSC_EN(1));
-  
-  // Configure UART to print
-  GPIO_REG(GPIO_OUTPUT_VAL) |= IOF0_UART0_MASK;
-  GPIO_REG(GPIO_OUTPUT_EN)  |= IOF0_UART0_MASK;
-  GPIO_REG(GPIO_IOF_SEL)    &= ~IOF0_UART0_MASK;
-  GPIO_REG(GPIO_IOF_EN)     |= IOF0_UART0_MASK;
-
-  // 115200 Baud Rate
-  UART0_REG(UART_REG_DIV) = 138;
-  UART0_REG(UART_REG_TXCTRL) = UART_TXEN;
-  UART0_REG(UART_REG_RXCTRL) = UART_RXEN;
-
-  // Wait a bit to avoid corruption on the UART.
-  // (In some cases, switching to the IOF can lead
-  // to output glitches, so need to let the UART
-  // reciever time out and resynchronize to the real 
-  // start of the stream.
-  volatile int i=0;
-  while(i < 10000){i++;}
-
-  _puts(sifive_msg);
-  //_puts("Config String:\n\r");
-  //_puts(*((const char **) 0x100C));
-  //_puts("\n\r");
-  _puts(led_msg);
-  
-  uint16_t r=0xFF;
-  uint16_t g=0;
-  uint16_t b=0;
-  char c = 0;
-  
-  // Set up RGB PWM
-  
-  PWM1_REG(PWM_CFG)   = 0;
-  // To balance the power consumption, make one left, one right, and one center aligned.
-  PWM1_REG(PWM_CFG)   = (PWM_CFG_ENALWAYS) | (PWM_CFG_CMP2CENTER);
-  PWM1_REG(PWM_COUNT) = 0;
-  
-  // Period is approximately 244 Hz
-  // the LEDs are intentionally left somewhat dim, 
-  // as the full brightness can be painful to look at.
-  PWM1_REG(PWM_CMP0)  = 0;
-
-  GPIO_REG(GPIO_IOF_SEL)    |= ( (1 << GREEN_LED_OFFSET) | (1 << BLUE_LED_OFFSET) | (1 << RED_LED_OFFSET));
-  GPIO_REG(GPIO_IOF_EN )    |= ( (1 << GREEN_LED_OFFSET) | (1 << BLUE_LED_OFFSET) | (1 << RED_LED_OFFSET));
-  GPIO_REG(GPIO_OUTPUT_XOR) &= ~( (1 << GREEN_LED_OFFSET) | (1 << BLUE_LED_OFFSET));
-  GPIO_REG(GPIO_OUTPUT_XOR) |= (1 << RED_LED_OFFSET);
-
-  while(1){
-    volatile uint64_t *  now = (volatile uint64_t*)(CLINT_CTRL_ADDR + CLINT_MTIME);
-    volatile uint64_t then = *now + 100;
-    while (*now < then) { }
-  
-    if(r > 0 && b == 0){
-      r--;
-      g++;
-    }
-    if(g > 0 && r == 0){
-      g--;
-      b++;
-    }
-    if(b > 0 && g == 0){
-      r++;
-      b--;
-    }
-    
-    uint32_t G = g;
-    uint32_t R = r;
-    uint32_t B = b;
-    
-    PWM1_REG(PWM_CMP1)  = G << 4;            // PWM is low on the left, GPIO is low on the left side, LED is ON on the left.
-    PWM1_REG(PWM_CMP2)  = (B << 1) << 4;     // PWM is high on the middle, GPIO is low in the middle, LED is ON in the middle.
-    PWM1_REG(PWM_CMP3)  = 0xFFFF - (R << 4); // PWM is low on the left, GPIO is low on the right, LED is on on the right.
-  
-    // Check for user input
-    if (c == 0){
-      if (_getc(&c) != 0){
-        _putc(c);
-        _puts("\n\r");
-        
-        if ((c == 'y') || (c == 'Y')){
-          _puts("PASS\n\r");
-        } else{
-          _puts("FAIL\n\r");
-        }
-      }
-    }
-  }
-}