diff --git a/linux/main.c b/linux/main.c
index 6739423..8382b28 100644
--- a/linux/main.c
+++ b/linux/main.c
@@ -52,14 +52,14 @@ typedef struct
     float realfreq;
 } timer_config_t;
 
-bool compute_timer_parameter(timer_config_t *config, int timer_in_clk /*mhz*/, int infreq /*hz*/)
+bool compute_timer_parameter(timer_config_t* config, int timer_in_clk /*mhz*/, int infreq /*hz*/)
 {
-    float psc_x_arr = timer_in_clk * 1000 /*定时器模块时钟*/ * 1000 / infreq;
+    float psc_x_arr =(float) timer_in_clk * 1000 /*定时器模块时钟*/ * 1000 / infreq;
     uint32_t psc = 0;
     uint32_t arr = 65534;
     for (; arr > 2; arr--)
     {
-        psc = psc_x_arr / arr;
+        psc =(uint32_t)( psc_x_arr / arr);
         if (psc >= 1)
         {
             uint32_t tmparr = psc_x_arr / psc;
@@ -72,7 +72,6 @@ bool compute_timer_parameter(timer_config_t *config, int timer_in_clk /*mhz*/, i
         return false;
     if (arr <= 3)
         return false; //定时器一周期的分辨率太小了
-
     arr = psc_x_arr / psc;
 
     int psc_x_arr_real = arr * psc;
@@ -85,58 +84,52 @@ bool compute_timer_parameter(timer_config_t *config, int timer_in_clk /*mhz*/, i
     config->prescaler = psc;
     config->realfreq = realfreq;
     // config->compare = arr / 2;
-
     return false;
 }
 
-void dumpconfig_info(timer_config_t *config)
+void dumpconfig_info(timer_config_t* config)
 {
     printf("* freq      : %f \n", config->realfreq);
     printf("* prescaler : %d \n", config->prescaler);
     printf("* autoreload: %d \n", config->autoreload);
 }
 
-int main(int argc, char const *argv[])
+int main(int argc, char const* argv[])
 {
     if (argc != 3)
     {
-        printf("%s system_clk mhz expect_freq khz\n", argv[0]);
+        printf("%s timerInClk mhz expect_freq khz\n", argv[0]);
         return -1;
     }
 
     float expect_freq = 0;
-    float systemclk = 0;
-    sscanf(argv[1], "%f", &systemclk);
+    float timerInClk = 0;
+   
+    sscanf(argv[1], "%f", &timerInClk);
     sscanf(argv[2], "%f", &expect_freq);
-    printf("systemclk  : %f mhz\n", systemclk);
-    printf("expect freq: %f khz\n", expect_freq);
+
+    printf("******************************************************\n");
+    printf("* author: zhaohe                                     *\n");
+    printf("* e-mail: h_zhaohe@163.com                           *\n");
+    printf("******************************************************\n");
+    printf("*\n");
+    printf("* timerInClk  : %f mhz\n", timerInClk);
+    printf("* expect freq: %f khz\n", expect_freq);
+    printf("*\n");
 
     int32_t infreq = (int32_t)(expect_freq * 1000);
-    timer_config_t timerconfig_apb1;
     timer_config_t timerconfig_apb2;
 
-    //apb1
-    compute_timer_parameter(&timerconfig_apb1, systemclk / 2, infreq);
-    //apb2
-    compute_timer_parameter(&timerconfig_apb2, systemclk, infreq);
+    compute_timer_parameter(&timerconfig_apb2, timerInClk, infreq);
 
     printf("******************************************************\n");
-    printf("* APB1: TIM2 TIM3 TIM4 TIM5 TIM6 TIM7 TIM12 TIM13 TIM14\n");
-    printf("*\n");
-    printf("* timer_module_clk: %f mhz\n", systemclk / 2);
-    printf("* freq            : %f khz\n", timerconfig_apb1.realfreq / 1000.0);
-    printf("* period          : %f ms\n", (1.0 / timerconfig_apb1.realfreq * 1000));
-    printf("* prescaler       : %d \n", timerconfig_apb1.prescaler);
-    printf("* autoreload      : %d \n", timerconfig_apb1.autoreload);
-    printf("*\n");
-    printf("**\n");
-    printf("* APB2: TIM1 TIM8 TIM9 TIM10 TIM11\n");
     printf("*\n");
-    printf("* timer_module_clk: %f mhz\n", systemclk);
+    printf("* timer_module_clk: %f mhz\n", timerInClk);
     printf("* freq            : %f khz\n", timerconfig_apb2.realfreq / 1000.0);
     printf("* period          : %f ms\n", (1.0 / timerconfig_apb2.realfreq * 1000));
     printf("* prescaler       : %d \n", timerconfig_apb2.prescaler);
     printf("* autoreload      : %d \n", timerconfig_apb2.autoreload);
-    printf("***\n");
+    printf("*\n");
+
     return 0;
-}
+}
\ No newline at end of file
diff --git a/release/stm32_pwm_computer.exe b/release/stm32_pwm_computer.exe
index 8d0ba48..f90c5f6 100644
Binary files a/release/stm32_pwm_computer.exe and b/release/stm32_pwm_computer.exe differ
diff --git a/windows/stm32_pwm_computer.cpp b/windows/stm32_pwm_computer.cpp
index 968dbf8..80c94c6 100644
--- a/windows/stm32_pwm_computer.cpp
+++ b/windows/stm32_pwm_computer.cpp
@@ -56,51 +56,38 @@ int main(int argc, char const* argv[])
 {
     if (argc != 3)
     {
-        printf("%s system_clk mhz expect_freq khz\n", argv[0]);
+        printf("%s timerInClk mhz expect_freq khz\n", argv[0]);
         return -1;
     }
 
     float expect_freq = 0;
-    float systemclk = 0;
+    float timerInClk = 0;
    
-    sscanf(argv[1], "%f", &systemclk);
+    sscanf(argv[1], "%f", &timerInClk);
     sscanf(argv[2], "%f", &expect_freq);
 
     printf("******************************************************\n");
-    printf("* author: 赵贺                                       *\n");
-    printf("* e-mail: zhaohe@163.net                             *\n");
+    printf("* author: zhaohe                                     *\n");
+    printf("* e-mail: h_zhaohe@163.com                           *\n");
     printf("******************************************************\n");
     printf("*\n");
-    printf("* systemclk  : %f mhz\n", systemclk);
+    printf("* timerInClk  : %f mhz\n", timerInClk);
     printf("* expect freq: %f khz\n", expect_freq);
     printf("*\n");
 
     int32_t infreq = (int32_t)(expect_freq * 1000);
-    timer_config_t timerconfig_apb1;
     timer_config_t timerconfig_apb2;
 
-    //apb1
-    compute_timer_parameter(&timerconfig_apb1, systemclk / 2, infreq);
-    //apb2
-    compute_timer_parameter(&timerconfig_apb2, systemclk, infreq);
+    compute_timer_parameter(&timerconfig_apb2, timerInClk, infreq);
 
     printf("******************************************************\n");
-    printf("* APB1: TIM2  TIM3  TIM4  TIM5  TIM6  TIM7\n");
-    printf("*       TIM12 TIM13 TIM14     \n");
     printf("*\n");
-    printf("* timer_module_clk: %f mhz\n", systemclk / 2);
-    printf("* freq            : %f khz\n", timerconfig_apb1.realfreq / 1000.0);
-    printf("* period          : %f ms\n", (1.0 / timerconfig_apb1.realfreq * 1000));
-    printf("* prescaler       : %d \n", timerconfig_apb1.prescaler);
-    printf("* autoreload      : %d \n", timerconfig_apb1.autoreload);
-    printf("*\n");
-    printf("* APB2: TIM1 TIM8 TIM9 TIM10 TIM11\n");
-    printf("*\n");
-    printf("* timer_module_clk: %f mhz\n", systemclk);
+    printf("* timer_module_clk: %f mhz\n", timerInClk);
     printf("* freq            : %f khz\n", timerconfig_apb2.realfreq / 1000.0);
     printf("* period          : %f ms\n", (1.0 / timerconfig_apb2.realfreq * 1000));
     printf("* prescaler       : %d \n", timerconfig_apb2.prescaler);
     printf("* autoreload      : %d \n", timerconfig_apb2.autoreload);
-    printf("******************************************************\n");
+    printf("*\n");
+
     return 0;
 }
\ No newline at end of file