{"id":4050,"date":"2020-12-03T10:27:26","date_gmt":"2020-12-03T10:27:26","guid":{"rendered":"http:\/\/fastbitlab.com\/?p=4050"},"modified":"2023-09-06T12:22:10","modified_gmt":"2023-09-06T06:52:10","slug":"implementation-of-i2c-init-api-part-3","status":"publish","type":"post","link":"https:\/\/fastbitlab.com\/blog\/implementation-of-i2c-init-api-part-3\/","title":{"rendered":"STM32 I2C Lecture 16: Implementation of I2C init API: Part 3"},"content":{"rendered":"
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Implementation of I2C init API: Part 3<\/span><\/h1>\n
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Configure the CCR register<\/span>:<\/b><\/span> Let\u2019s do CCR calculations to configure the CCR field.<\/span><\/span><\/p>\n

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  1. Initialize a variable to store the CCR value.<\/span><\/li>\n
  2. Determine whether the mode is a standard mode or a fast mode by checking the serial clock speed given by the user. If the serial clock’s speed is lesser than or equals to standard mode speed, configure for standard mode. Otherwise, configure for the fast mode (Figure 1).<\/span><\/li>\n<\/ol>\n

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    Figure 1. Code to determine the mode.<\/span><\/figcaption><\/figure>\n

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    i. For standard mode:<\/strong><\/span><\/p>\n