From: Miceuz <mic@hardcore.lt>
Date: Thu, 19 Apr 2012 16:50:22 +0000 (+0200)
Subject: add PWM CLI command
X-Git-Url: http://git.rohieb.name/hackover2013-badge-firmware.git/commitdiff_plain/b5e1d01dc3ef67418901a4d43b5f78c879663a9d?ds=sidebyside

add PWM CLI command
---

diff --git a/project/cmd_tbl.h b/project/cmd_tbl.h
index b240cbe..efdae36 100644
--- a/project/cmd_tbl.h
+++ b/project/cmd_tbl.h
@@ -93,6 +93,8 @@ void cmd_lm75b_gettemp(uint8_t argc, char **argv);
 void cmd_sd_dir(uint8_t argc, char **argv);
 #endif
 
+void cmd_pwm(uint8_t argc, char **argv);
+
 #define CMD_NOPARAMS "This command has no parameters"
 
 /**************************************************************************/
@@ -153,6 +155,10 @@ cmd_t cmd_tbl[] =
   #ifdef CFG_SDCARD
   { "d",    0,  1,  0,  cmd_sd_dir           , "Dir (SD Card)"                  , "'d [<path>]'" },
   #endif
+  { "pwm", 0, 2, 0, cmd_pwm, "PWM Control", "'pwm [<duty_cycle>] [<frequency>]'" },
+
+}
+
 };
 
 #endif
\ No newline at end of file
diff --git a/project/commands/cmd_pwm.c b/project/commands/cmd_pwm.c
new file mode 100644
index 0000000..00e7de4
--- /dev/null
+++ b/project/commands/cmd_pwm.c
@@ -0,0 +1,97 @@
+/**************************************************************************/
+/*! 
+    @file     cmd_sysinfo.c
+    @author   K. Townsend (microBuilder.eu)
+
+    @brief    Code to execute for cmd_sysinfo in the 'core/cmd'
+              command-line interpretter.
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2010, microBuilder SARL
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/**************************************************************************/
+#include <stdio.h>
+
+#include "projectconfig.h"
+#include "core/cmd/cmd.h"
+#include "core/systick/systick.h"
+#include "core/iap/iap.h"
+#include "project/commands.h"       // Generic helper functions
+#include "core/pwm/pwm.h"
+
+#ifdef CFG_PRINTF_UART
+  #include "core/uart/uart.h"
+#endif
+
+/**************************************************************************/
+/*! 
+    PWM command handler
+*/
+/**************************************************************************/
+uint8_t pwmStarted = 0;
+
+void cmd_pwm(uint8_t argc, char **argv) {
+    int32_t frequencyTicks = 65535;
+    int32_t dutyCycle = 25;
+    
+    if(argc > 0) {
+        getNumber (argv[0], &dutyCycle);
+        if(dutyCycle < 1 || dutyCycle > 100) {
+            printf("Invalid duty cycle. Duty cycle must be [1 .. 65535]%s", CFG_PRINTF_NEWLINE);
+            return;
+        }
+
+        if(argc > 1) {
+            getNumber (argv[1], &frequencyTicks);
+            if(frequencyTicks < 0 || frequencyTicks > 0xffff) {
+                printf("Invalid frequency. Frequency must be [1 .. 65535]%s", CFG_PRINTF_NEWLINE);
+                return;
+            }
+        } else {
+            frequencyTicks = 65535;
+        }
+    } else {
+        dutyCycle = 25;
+
+    }
+
+    if(! pwmStarted) {
+        printf("Initializing PWM%s", CFG_PRINTF_NEWLINE);
+        pwmInit();
+    }
+    
+    printf("Setting frequency ticks to %u%s", (uint16_t) frequencyTicks, CFG_PRINTF_NEWLINE);
+    pwmSetFrequencyInTicks(frequencyTicks);
+    printf("Setting duty cycle to %u%s", (uint16_t) dutyCycle, CFG_PRINTF_NEWLINE);
+    pwmSetDutyCycle(dutyCycle);
+    if(! pwmStarted) {
+        pwmStart();
+        pwmStarted = 1;
+    }
+}
\ No newline at end of file