{"id":291362,"date":"2018-10-25T16:40:02","date_gmt":"2018-10-25T12:40:02","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=291362"},"modified":"-0001-11-30T00:00:00","modified_gmt":"2018-10-25T12:40:02","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=291362","title":{"rendered":"STM32H7 \u2014 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \u0442\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u0435\u0437 HAL"},"content":{"rendered":"\n<div class=\"post__text post__text-html js-mediator-article\">\u041d\u0435 \u0442\u0430\u043a \u0434\u0430\u0432\u043d\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f STM \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u043d\u0430 \u0440\u044b\u043d\u043e\u043a \u043e\u0447\u0435\u043d\u044c \u043c\u043e\u0449\u043d\u0443\u044e, \u043f\u043e \u043c\u0435\u0440\u043a\u0430\u043c \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u0432, \u043b\u0438\u043d\u0435\u0439\u043a\u0443 \u043a\u0440\u0438\u0441\u0442\u0430\u043b\u043b\u043e\u0432 STM32H7. \u0427\u0442\u043e \u043c\u0435\u043d\u044f \u0432 \u043d\u0435\u0439 \u043f\u0440\u0438\u0432\u043b\u0435\u043a\u043b\u043e:<br \/>   \u2014 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u044f\u0434\u0440\u0430 \u0434\u043e 400 \u041c\u0413\u0446<br \/>   \u2014 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u043d\u044b\u0439 \u043e\u0431\u044a\u0435\u043c \u041e\u0417\u0423, \u0434\u043e 1 \u041c\u0411<br \/>   \u2014 16 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u044b\u0439 \u0410\u0426\u041f<br \/>   \u2014 pin-to-pin \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0441\u0435\u0440\u0438\u0439 F7<\/p>\n<p>  \u041e\u0442\u043b\u0438\u0447\u043d\u043e \u043f\u043e\u0434\u0443\u043c\u0430\u043b \u044f, \u0437\u0430\u043f\u0430\u044f\u043b \u043d\u0430 \u043f\u043b\u0430\u0442\u0443 \u043a\u0440\u0438\u0441\u0442\u0430\u043b\u043b STM32H743IIT6 \u0432\u043c\u0435\u0441\u0442\u043e STM32F746IGT6 \u0438 \u043d\u0430\u0447\u0430\u043b \u043d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 \u0432 SW4STM32. <\/p>\n<p>  <a name=\"habracut\"><\/a><\/p>\n<p>  \u0414\u043b\u044f \u0440\u0430\u0441\u0447\u0435\u0442\u0430 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u043e\u0432 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0435\u0439 \u0438 \u043c\u043d\u043e\u0436\u0438\u0442\u0435\u043b\u0435\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0442\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0430 \u0443\u0434\u043e\u0431\u043d\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0432\u043a\u043b\u0430\u0434\u043a\u043e\u0439 Clock Configuration \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b STM32CubeMX.<\/p>\n<p>  \u041d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0442\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f:<br \/>   \u2014 \u0432\u043d\u0435\u0448\u043d\u0438\u0439 \u043a\u0432\u0430\u0440\u0446 \u2014 8 \u041c\u0413\u0446<br \/>   \u2014 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u0447\u0430\u0441\u0442\u043e\u0442\u044b \u0434\u043b\u044f PLL1 \u2014 \u0432\u043d\u0435\u0448\u043d\u0438\u0439 \u043a\u0432\u0430\u0440\u0446 (HSE)<br \/>   \u2014 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u0434\u043b\u044f PLL1 \u2014 4 (DIVM1)<br \/>   \u2014 \u043c\u043d\u043e\u0436\u0438\u0442\u0435\u043b\u044c PLL1 \u2014 400 (DIVN1)<br \/>   \u2014 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0438 \u2014 2 (DIVP1, DIVQ1, DIVR1)<\/p>\n<p>  \u0421\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e, \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u044f\u0434\u0440\u0430 (SYSCLK)- 400 \u041c\u0413\u0446.<br \/>  <img decoding=\"async\" src=\"https:\/\/habrastorage.org\/webt\/gn\/ob\/_r\/gnob_rftv_katjplg7v42hfavjc.jpeg\"><\/p>\n<p>  \u041a\u0440\u043e\u043c\u0435 STM32CubeMX \u0435\u0441\u0442\u044c \u0435\u0449\u0435 \u043d\u0430\u0431\u043e\u0440 \u00abSTM32CubeH7 firmware package\u00bb, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u0432 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u043f\u0435\u0440\u0438\u0444\u0435\u0440\u0438\u0435\u0439 \u0434\u043b\u044f STM32H7. \u0418\u043c\u0435\u043d\u043d\u043e \u0438\u0437 \u043d\u0435\u0433\u043e \u0431\u044b\u043b\u0430 \u0432\u0437\u044f\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0442\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0430.<\/p>\n<p>  \u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u0438 \u043a\u043e\u043c\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0438 \u0432\u0437\u044f\u0442\u044b \u0438\u0437 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0445 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u043e\u0432:<br \/>   \u2014 SystemClock_Config \u0438\u0437 STM32CubeH7 firmware package<br \/>   \u2014 Reference manual STM32H743\/753 and STM32H750 advanced ARM-based 32-bit<br \/>  MCUs<br \/>   \u2014 Datasheet STM32H743xI<\/p>\n<p>  \u0418\u0442\u0430\u043a, \u043d\u0430\u0447\u043d\u0435\u043c.<br \/>  1. \u0412\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0432\u043d\u0435\u0448\u043d\u0435\u0433\u043e \u043a\u0432\u0430\u0440\u0446\u0430 \u0438 \u043e\u0436\u0438\u0434\u0430\u043d\u0438\u0435 \u0433\u043e\u0442\u043e\u0432\u043d\u043e\u0441\u0442\u0438.<br \/>  <code>\/\/ Enable HSE<br \/>   RCC-&gt;CR |= RCC_CR_HSEON;<br \/>   \/\/ Wait till HSE is ready<br \/>   while((RCC-&gt;CR &amp; RCC_CR_HSERDY) == 0);<\/code><\/p>\n<p>  2. \u0423\u043a\u0430\u0437\u0430\u043d\u0438\u0435 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0430 \u0447\u0430\u0441\u0442\u043e\u0442\u044b \u0434\u043b\u044f PLL1 \u2014 \u0432\u043d\u0435\u0448\u043d\u0438\u0439 \u043a\u0432\u0430\u0440\u0446.<br \/>  <code>\/\/RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;<br \/>   RCC -&gt; PLLCKSELR |= RCC_PLLCKSELR_PLLSRC_HSE;<\/code><\/p>\n<p>  3. \u0417\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0432\u043d\u044b\u043c 4.<br \/>  <code>\/\/PLLM = 4<br \/>   RCC -&gt; PLLCKSELR &amp;= ~RCC_PLLCKSELR_DIVM1_5; \/\/0<br \/>   RCC -&gt; PLLCKSELR &amp;= ~RCC_PLLCKSELR_DIVM1_4; \/\/0<br \/>   RCC -&gt; PLLCKSELR &amp;= ~RCC_PLLCKSELR_DIVM1_3; \/\/0<br \/>   RCC -&gt; PLLCKSELR |= RCC_PLLCKSELR_DIVM1_2; \/\/1<br \/>   RCC -&gt; PLLCKSELR &amp;= ~RCC_PLLCKSELR_DIVM1_1; \/\/0<br \/>   RCC -&gt; PLLCKSELR &amp;= ~RCC_PLLCKSELR_DIVM1_0; \/\/0<\/code><\/p>\n<p>  4. \u041c\u043d\u043e\u0436\u0438\u0442\u0435\u043b\u044c N \u0438 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0438 P, Q, R<br \/>  <code> \/\/PLL1DIVR bits<br \/>   \/\/DIVN1[8:0] 0 - 8 PLLN = 400<br \/>   \/\/DIVP1[6:0] 9 - 15 PLLP = 2<br \/>   \/\/DIVQ1[6:0] 16 - 22 PLLQ = 2<br \/>   \/\/DIVR1[6:0] 24 - 30 PLLR = 2<br \/>   RCC -&gt; PLL1DIVR |= 0x0101038F;<\/code><\/p>\n<p>  5. \u0414\u0440\u043e\u0431\u043d\u044b\u0439 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u0447\u0430\u0441\u0442\u043e\u0442\u044b PLL (\u0435\u0441\u043b\u0438 \u043d\u0443\u0436\u0435\u043d)<br \/>  <code>\/\/ \/* Configure PLL PLL1FRACN *\/<br \/>   \/\/__HAL_RCC_PLLFRACN_CONFIG(RCC_OscInitStruct-&gt;PLL.PLLFRACN);<br \/>   RCC -&gt; PLL1FRACR = 0;<\/code><\/p>\n<p>  6. \u0423\u043a\u0430\u0437\u0430\u043d\u0438\u0435 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430 \u0432\u0445\u043e\u0434\u043d\u043e\u0439 \u0447\u0430\u0441\u0442\u043e\u0442\u044b PLL1<br \/>  <code> \/* Select PLL1 input reference frequency range: VCI *\/<br \/>   \/\/__HAL_RCC_PLL_VCIRANGE(RCC_OscInitStruct-&gt;PLL.PLLRGE) ;<br \/>   RCC-&gt;PLLCFGR |= RCC_PLLCFGR_PLL1RGE_3;<\/code><\/p>\n<p>  7. \u0423\u043a\u0430\u0437\u0430\u043d\u0438\u0435 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430 \u0432\u044b\u0445\u043e\u0434\u043d\u043e\u0439 \u0447\u0430\u0441\u0442\u043e\u0442\u044b PLL1<br \/>  <code> \/* Select PLL1 output frequency range : VCO *\/<br \/>   \/\/__HAL_RCC_PLL_VCORANGE(RCC_OscInitStruct-&gt;PLL.PLLVCOSEL) ;<br \/>   RCC-&gt;PLLCFGR &amp;= ~RCC_PLLCFGR_PLL1VCOSEL;<\/code><\/p>\n<p>  8. \u0412\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0435\u0439 PLL1: P, Q, R<br \/>  <code> \/* Enable PLL System Clock output. *\/<br \/>   \/\/ __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVP);<br \/>   \/\/Bit 16 DIVP1EN: PLL1 DIVP divider output enable<br \/>   RCC-&gt;PLLCFGR |= RCC_PLLCFGR_DIVP1EN;<\/p>\n<p>  \/* Enable PLL1Q Clock output. *\/<br \/>   \/\/__HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVQ);<br \/>   RCC-&gt;PLLCFGR |= RCC_PLLCFGR_DIVQ1EN;<\/p>\n<p>  \/* Enable PLL1R Clock output. *\/<br \/>   \/\/ __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVR);<br \/>   RCC-&gt;PLLCFGR |= RCC_PLLCFGR_DIVR1EN;<\/code><\/p>\n<p>  9. \u0412\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0434\u0440\u043e\u0431\u043d\u043e\u0433\u043e \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044f.<br \/>  <code> \/* Enable PLL1FRACN . *\/<br \/>   \/\/__HAL_RCC_PLLFRACN_ENABLE();<br \/>   RCC-&gt;PLLCFGR |= RCC_PLLCFGR_PLL1FRACEN;<\/code><\/p>\n<p>  10. \u041f\u0443\u0441\u043a PLL1 \u0438 \u043e\u0436\u0438\u0434\u0430\u043d\u0438\u0435 \u0433\u043e\u0442\u043e\u0432\u043d\u043e\u0441\u0442\u0438<br \/>  <code> \/* Enable the main PLL. *\/<br \/>   \/\/__HAL_RCC_PLL_ENABLE();<br \/>   RCC-&gt;CR |= RCC_CR_PLLON;<br \/>   while((RCC-&gt;CR &amp; RCC_CR_PLL1RDY) == 0);<\/code><\/p>\n<p>  PLL1 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043d \u0438 \u0437\u0430\u043f\u0443\u0449\u0435\u043d. \u0422\u0435\u043f\u0435\u0440\u044c \u0432\u044b\u0431\u043e\u0440 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0430 \u0447\u0430\u0441\u0442\u043e\u0442\u044b SYSCLK \u0438 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0435\u0439 \u0448\u0438\u043d.<\/p>\n<p>  11. \u0414\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u043d\u0430 2 HPRE <br \/>  <code> \/\/RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;<br \/>   \/\/ MODIFY_REG(RCC-&gt;D1CFGR, RCC_D1CFGR_HPRE, RCC_ClkInitStruct-&gt;AHBCLKDivider);<br \/>   \/\/HPRE[3:0]: D1 domain AHB prescaler<br \/>   \/\/1000: rcc_hclk3 = sys_d1cpre_ck \/ 2<br \/>   RCC -&gt; D1CFGR |= RCC_D1CFGR_HPRE_3; \/\/1<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_HPRE_2; \/\/0<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_HPRE_1; \/\/0<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_HPRE_0; \/\/0<\/code><\/p>\n<p>  12. \u0411\u0435\u0437 \u0434\u0435\u043b\u0435\u043d\u0438\u044f D1CPRE<br \/>   <code> \/\/RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;<br \/>   \/\/MODIFY_REG(RCC-&gt;D1CFGR, RCC_D1CFGR_D1CPRE, RCC_ClkInitStruct-&gt;SYSCLKDivider);<br \/>   \/\/D1CPRE[3:0]: D1 domain Core prescaler<br \/>   \/\/0xxx: sys_ck not divided (default after reset)<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_D1CPRE_3; \/\/0<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_D1CPRE_2; \/\/0<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_D1CPRE_1; \/\/0<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_D1CPRE_0; \/\/0<\/code> <\/p>\n<p>  13. \u0417\u0430\u0434\u0430\u0435\u043c PLL1 \u043a\u0430\u043a \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a SYSCLK \u0438 \u043e\u0436\u0438\u0434\u0430\u0435\u043c \u0433\u043e\u0442\u043e\u0432\u043d\u043e\u0441\u0442\u0438<br \/>  <code> \/\/RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;<br \/>   \/\/MODIFY_REG(RCC-&gt;CFGR, RCC_CFGR_SW, RCC_ClkInitStruct-&gt;SYSCLKSource);<br \/>   \/\/SW[2:0]: System clock switch<br \/>   \/\/011: PLL1 selected as system clock (pll1_p_ck)<\/p>\n<p>  RCC-&gt;CFGR &amp;= ~RCC_CFGR_SW_2; \/\/0<br \/>   RCC-&gt;CFGR |= RCC_CFGR_SW_1; \/\/1<br \/>   RCC-&gt;CFGR |= RCC_CFGR_SW_0; \/\/1<\/p>\n<p>  while((RCC-&gt;CFGR &amp; RCC_CFGR_SWS) != RCC_CFGR_SWS_PLL1);<\/code> <\/p>\n<p>  14. \u0414\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u043d\u0430 2 D1PPRE<br \/>  <code> \/\/D1PCLK1 Configuration<br \/>   \/\/RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;<br \/>   \/\/MODIFY_REG(RCC-&gt;D1CFGR, RCC_D1CFGR_D1PPRE, RCC_ClkInitStruct-&gt;APB3CLKDivider);<br \/>   \/\/Bits 6:4 D1PPRE[2:0]: D1 domain APB3 prescaler<br \/>   \/\/100: rcc_pclk3 = rcc_hclk3 \/ 2<br \/>   RCC -&gt; D1CFGR |= RCC_D1CFGR_D1PPRE_2;<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_D1PPRE_1;<br \/>   RCC -&gt; D1CFGR &amp;= ~RCC_D1CFGR_D1PPRE_0;<\/code> <\/p>\n<p>  15. \u0414\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u043d\u0430 2 D2PPRE1<br \/>  <code> \/\/PCLK1 Configuration<br \/>   \/\/RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;<br \/>   \/\/MODIFY_REG(RCC-&gt;D2CFGR, RCC_D2CFGR_D2PPRE1, (RCC_ClkInitStruct-&gt;APB1CLKDivider));<br \/>   \/\/Bits 6:4 D2PPRE1[2:0]: D2 domain APB1 prescaler<br \/>   \/\/100: rcc_pclk1 = rcc_hclk1 \/ 2<br \/>   RCC -&gt; D2CFGR |= RCC_D2CFGR_D2PPRE1_2;<br \/>   RCC -&gt; D2CFGR &amp;= ~RCC_D2CFGR_D2PPRE1_1;<br \/>   RCC -&gt; D2CFGR &amp;= ~RCC_D2CFGR_D2PPRE1_0;<\/code> <\/p>\n<p>  16. \u0414\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u043d\u0430 2 D2PPRE2<br \/>  <code> \/\/PCLK2 Configuration<br \/>   \/\/RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;<br \/>   \/\/MODIFY_REG(RCC-&gt;D2CFGR, RCC_D2CFGR_D2PPRE2, (RCC_ClkInitStruct-&gt;APB2CLKDivider));<br \/>   \/\/Bits 10:8 D2PPRE2[2:0]: D2 domain APB2 prescaler<br \/>   \/\/100: rcc_pclk2 = rcc_hclk1 \/ 2<br \/>   RCC -&gt; D2CFGR |= RCC_D2CFGR_D2PPRE2_2;<br \/>   RCC -&gt; D2CFGR &amp;= ~RCC_D2CFGR_D2PPRE2_1;<br \/>   RCC -&gt; D2CFGR &amp;= ~RCC_D2CFGR_D2PPRE2_0;<\/code> <\/p>\n<p>  17. \u0414\u0435\u043b\u0438\u0442\u0435\u043b\u044c \u043d\u0430 2 D3PPRE<br \/>  <code> \/\/D3PCLK1 Configuration<br \/>   \/\/RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;<br \/>   \/\/MODIFY_REG(RCC-&gt;D3CFGR, RCC_D3CFGR_D3PPRE, (RCC_ClkInitStruct-&gt;APB4CLKDivider) );<br \/>   \/\/Bits 6:4 D3PPRE[2:0]: D3 domain APB4 prescaler<br \/>   \/\/100: rcc_pclk4 = rcc_hclk4 \/ 2<br \/>   RCC -&gt; D3CFGR |= RCC_D3CFGR_D3PPRE_2;<br \/>   RCC -&gt; D3CFGR &amp;= ~RCC_D3CFGR_D3PPRE_1;<br \/>   RCC -&gt; D3CFGR &amp;= ~RCC_D3CFGR_D3PPRE_0;<\/code> <\/p>\n<p>  \u0414\u043b\u044f \u0442\u043e\u0433\u043e \u0447\u0442\u043e\u0431\u044b \u0443\u0431\u0435\u0434\u0438\u0442\u044c\u0441\u044f, \u0447\u0442\u043e \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0438 \u0437\u0430\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0448\u043b\u0438 \u0443\u0441\u043f\u0435\u0448\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0432\u044b\u0445\u043e\u0434 \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0430 MCO2. \u041d\u0430 \u044d\u0442\u043e\u043c \u0432\u044b\u0445\u043e\u0434\u0435 \u0434\u043e\u043b\u0436\u043d\u0430 \u0431\u044b\u0442\u044c \u0447\u0430\u0441\u0442\u043e\u0442\u0430 26.666 \u041c\u0413\u0446 \u043f\u0440\u0438 \u0434\u0435\u043b\u0438\u0442\u0435\u043b\u0435 \u0432\u044b\u0445\u043e\u0434\u0430 15.<\/p>\n<p>  <img decoding=\"async\" src=\"https:\/\/habrastorage.org\/webt\/b6\/2w\/df\/b62wdfa3oyu5myzx7-dacvqofxy.jpeg\"><\/p>\n<p>  \u041e\u0442\u043b\u0438\u0447\u043d\u043e. \u0427\u0430\u0441\u0442\u043e\u0442\u0430 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442, \u0437\u043d\u0430\u0447\u0438\u0442 \u0432\u0441\u0435 \u0441\u0434\u0435\u043b\u0430\u043d\u043e \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e.<\/p><\/div>\n<p>        <script class=\"js-mediator-script\">!function(e){function t(t,n){if(!(n in e)){for(var r,a=e.document,i=a.scripts,o=i.length;o--;)if(-1!==i[o].src.indexOf(t)){r=i[o];break}if(!r){r=a.createElement(\"script\"),r.type=\"text\/javascript\",r.async=!0,r.defer=!0,r.src=t,r.charset=\"UTF-8\";var d=function(){var e=a.getElementsByTagName(\"script\")[0];e.parentNode.insertBefore(r,e)};\"[object Opera]\"==e.opera?a.addEventListener?a.addEventListener(\"DOMContentLoaded\",d,!1):e.attachEvent(\"onload\",d):d()}}}t(\"\/\/mediator.mail.ru\/script\/2820404\/\",\"_mediator\")}(window);<\/script>     <br \/> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"https:\/\/habr.com\/post\/427435\/\"> https:\/\/habr.com\/post\/427435\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\n<div class=\"post__text post__text-html js-mediator-article\">\u041d\u0435 \u0442\u0430\u043a \u0434\u0430\u0432\u043d\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f STM \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u043d\u0430 \u0440\u044b\u043d\u043e\u043a \u043e\u0447\u0435\u043d\u044c \u043c\u043e\u0449\u043d\u0443\u044e, \u043f\u043e \u043c\u0435\u0440\u043a\u0430\u043c \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u0432, \u043b\u0438\u043d\u0435\u0439\u043a\u0443 \u043a\u0440\u0438\u0441\u0442\u0430\u043b\u043b\u043e\u0432 STM32H7. \u0427\u0442\u043e \u043c\u0435\u043d\u044f \u0432 \u043d\u0435\u0439 \u043f\u0440\u0438\u0432\u043b\u0435\u043a\u043b\u043e:<br \/>   \u2014 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u044f\u0434\u0440\u0430 \u0434\u043e 400 \u041c\u0413\u0446<br \/>   \u2014 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u043d\u044b\u0439 \u043e\u0431\u044a\u0435\u043c \u041e\u0417\u0423, \u0434\u043e 1 \u041c\u0411<br \/>   \u2014 16 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u044b\u0439 \u0410\u0426\u041f<br \/>   \u2014 pin-to-pin \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0441\u0435\u0440\u0438\u0439 F7<\/p>\n<p>  \u041e\u0442\u043b\u0438\u0447\u043d\u043e \u043f\u043e\u0434\u0443\u043c\u0430\u043b \u044f, \u0437\u0430\u043f\u0430\u044f\u043b \u043d\u0430 \u043f\u043b\u0430\u0442\u0443 \u043a\u0440\u0438\u0441\u0442\u0430\u043b\u043b STM32H743IIT6 \u0432\u043c\u0435\u0441\u0442\u043e STM32F746IGT6 \u0438 \u043d\u0430\u0447\u0430\u043b \u043d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 \u0432 SW4STM32. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-291362","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/291362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=291362"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/291362\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=291362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=291362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=291362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}