diff options
Diffstat (limited to 'software/coreplexip-welcome')
| -rw-r--r-- | software/coreplexip-welcome/Makefile | 4 | ||||
| -rw-r--r-- | software/coreplexip-welcome/README.md | 2 | ||||
| -rw-r--r-- | software/coreplexip-welcome/coreplexip-welcome.c | 156 |
3 files changed, 0 insertions, 162 deletions
diff --git a/software/coreplexip-welcome/Makefile b/software/coreplexip-welcome/Makefile deleted file mode 100644 index f9c9ead..0000000 --- a/software/coreplexip-welcome/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -coreplexip-welcome: coreplexip-welcome.c - -clean: - rm -f coreplexip-welcome coreplexip-welcome.hex diff --git a/software/coreplexip-welcome/README.md b/software/coreplexip-welcome/README.md deleted file mode 100644 index 5ea36ef..0000000 --- a/software/coreplexip-welcome/README.md +++ /dev/null @@ -1,2 +0,0 @@ -# coreplexip-welcome -A simple "CoreplexIP Welcome" example which prints SiFive banner and uses board LEDs. diff --git a/software/coreplexip-welcome/coreplexip-welcome.c b/software/coreplexip-welcome/coreplexip-welcome.c deleted file mode 100644 index de6f92d..0000000 --- a/software/coreplexip-welcome/coreplexip-welcome.c +++ /dev/null @@ -1,156 +0,0 @@ - -#include <stdio.h> -#include <metal/cpu.h> -#include <metal/led.h> -#include <metal/button.h> -#include <metal/switch.h> - -#define RTC_FREQ 32768 - -struct metal_cpu *cpu0; -struct metal_interrupt *cpu_intr, *tmr_intr; -int tmr_id; -volatile uint32_t timer_isr_flag; - -void display_banner (void) { - - printf("\n"); - printf("\n"); - printf(" SIFIVE, INC.\n"); - printf("\n"); - printf(" 5555555555555555555555555\n"); - printf(" 5555 5555\n"); - printf(" 5555 5555\n"); - printf(" 5555 5555\n"); - printf(" 5555 5555555555555555555555\n"); - printf(" 5555 555555555555555555555555\n"); - printf(" 5555 5555\n"); - printf(" 5555 5555\n"); - printf(" 5555 5555\n"); - printf(" 5555555555555555555555555555 55555\n"); - printf(" 55555 555555555 55555\n"); - printf(" 55555 55555 55555\n"); - printf(" 55555 5 55555\n"); - printf(" 55555 55555\n"); - printf(" 55555 55555\n"); - printf(" 55555 55555\n"); - printf(" 55555 55555\n"); - printf(" 55555 55555\n"); - printf(" 555555555\n"); - printf(" 55555\n"); - printf(" 5\n"); - printf("\n"); - - printf("\n"); - printf("Welcome to the E31/E51 Coreplex IP FPGA Evaluation Kit!\n"); - -} - -void timer_isr (int id, void *data) { - - // Disable Timer interrupt - metal_interrupt_disable(tmr_intr, tmr_id); - - // Flag showing we hit timer isr - timer_isr_flag = 1; -} - -void wait_for_timer(struct metal_led *which_led) { - - // clear global timer isr flag - timer_isr_flag = 0; - - // Turn on desired LED - metal_led_on(which_led); - - // Set timer - metal_cpu_set_mtimecmp(cpu0, metal_cpu_get_mtime(cpu0) + RTC_FREQ); - - // Enable Timer interrupt - metal_interrupt_enable(tmr_intr, tmr_id); - - // wait till timer triggers and isr is hit - while (timer_isr_flag == 0){}; - - timer_isr_flag = 0; - - // All Off - metal_led_off(which_led); -} - -int main (void) -{ - int rc, up_cnt, dn_cnt; - struct metal_led *led0_red, *led0_green, *led0_blue; - - // This demo will toggle LEDs colors so we define them here - led0_red = metal_led_get_rgb("LD0", "red"); - led0_green = metal_led_get_rgb("LD0", "green"); - led0_blue = metal_led_get_rgb("LD0", "blue"); - if ((led0_red == NULL) || (led0_green == NULL) || (led0_blue == NULL)) { - printf("At least one of LEDs is null.\n"); - return 1; - } - - // Enable each LED - metal_led_enable(led0_red); - metal_led_enable(led0_green); - metal_led_enable(led0_blue); - - // All Off - metal_led_off(led0_red); - metal_led_off(led0_green); - metal_led_off(led0_blue); - - // Lets get the CPU and and its interrupt - cpu0 = metal_cpu_get(0); - if (cpu0 == NULL) { - printf("CPU null.\n"); - return 2; - } - cpu_intr = metal_cpu_interrupt_controller(cpu0); - if (cpu_intr == NULL) { - printf("CPU interrupt controller is null.\n"); - return 3; - } - metal_interrupt_init(cpu_intr); - - // display welcome banner - display_banner(); - - // Setup Timer and its interrupt so we can toggle LEDs on 1s cadence - tmr_intr = metal_cpu_timer_interrupt_controller(cpu0); - if (tmr_intr == NULL) { - printf("TIMER interrupt controller is null.\n"); - return 4; - } - metal_interrupt_init(tmr_intr); - tmr_id = metal_cpu_timer_get_interrupt_id(cpu0); - rc = metal_interrupt_register_handler(tmr_intr, tmr_id, timer_isr, cpu0); - if (rc < 0) { - printf("TIMER interrupt handler registration failed\n"); - return (rc * -1); - } - - // Lastly CPU interrupt - if (metal_interrupt_enable(cpu_intr, 0) == -1) { - printf("CPU interrupt enable failed\n"); - return 6; - } - - // Red -> Green -> Blue, repeat - while (1) { - - // Turn on RED - wait_for_timer(led0_red); - - // Turn on Green - wait_for_timer(led0_green); - - // Turn on Blue - wait_for_timer(led0_blue); - } - - // return - return 0; -} |