http://forums.leaflabs.com/topic.php?id=729 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:09:55 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=729#post-4277 Mon, 11 Apr 2011 15:30:03 +0000 mbolivar 4277@http://forums.leaflabs.com/ <p>anton,</p> <p>That seems reasonable. We saw your pull request this morning; thanks for the patch! </p> http://forums.leaflabs.com/topic.php?id=729#post-4266 Sun, 10 Apr 2011 21:17:48 +0000 anton 4266@http://forums.leaflabs.com/ <p>How about something like this?<br /> <pre><code>#define HSO_FREQ 8000000UL #define RCC_PLLMUL RCC_PLLMUL_9 #define CLOCK_SPEED_HZ (HSO_FREQ * RCC_PLLMUL) #define CLOCK_SPEED_MHZ (CLOCK_SPEED_HZ / 1000000UL) #define RCC_AHB_SYSCLK_DIV RCC_AHB_SYSCLK_DIV_1 #define RCC_APB1_HCLK_DIV RCC_APB1_HCLK_DIV_2 #define RCC_APB2_HCLK_DIV RCC_APB2_HCLK_DIV_1 #define CYCLES_PER_MICROSECOND CLOCK_SPEED_MHZ #define SYSTICK_RELOAD_VAL (CLOCK_SPEED_HZ / 1000 - 1) /* takes a cycle to reload */ #define PCLK1 (CLOCK_SPEED_HZ / RCC_APB1_HCLK_DIV) #define PCLK2 (CLOCK_SPEED_HZ / RCC_APB2_HCLK_DIV)</code></pre> http://forums.leaflabs.com/topic.php?id=729#post-4263 Sun, 10 Apr 2011 07:51:51 +0000 anton 4263@http://forums.leaflabs.com/ <p>RCC_I2C2 in rcc.c and rcc.h placed in STM32_HIGH_DENSITY section<br /> although medium density chips also have two i2c.</p> <p>Is it possible to put all frequency-related constants in boards/boardname.h file?<br /> Including ERROR_USART_CLK_SPEED from util.c and PCLK1 from stm32.h </p>