add PWM CLI command

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