8000 cpu/sam0_common/periph/sdhc: busy waiting and clock fixes by benpicco · Pull Request #19815 · RIOT-OS/RIOT · GitHub
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cpu/sam0_common/periph/sdhc: busy waiting and clock fixes #19815

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Merged
merged 5 commits into from
Aug 23, 2023
Merged

cpu/sam0_common/periph/sdhc: busy waiting and clock fixes #19815

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b859da8
cpu/samd5x: change FDPLL1 frequency to 100 MHz
gschorcht Jun 15, 2023
7899e80
cpu/sam0_common/periph/sdhc: busy wait implementation
gschorcht Jun 18, 2023
bfe98a5
cpu/sam0_common/periph/sdhc: fix clock generation
benpicco Jun 19, 2023
0f555f0
cpu/sam0_common/periph/sdhc: disable clock when SD card is idle
benpicco Jun 19, 2023
84ceea3
cpu/sam0_common/periph/sdhc: always use 25 MHz
benpicco Jun 20, 2023
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1 change: 1 addition & 0 deletions cpu/sam0_common/include/sdhc.h
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Expand Up @@ -95,6 +95,7 @@ typedef struct {
/** This SD stack uses the maximum block size authorized (512 bytes) */
#define SD_MMC_BLOCK_SIZE 512 /**< SD card block size */
#define SDHC_SLOW_CLOCK_HZ 400000 /**< Clock frequency on init */
#define SDHC_FAST_CLOCK_HZ 25000000 /**< Clock frequency after init */

/**
* @brief Initialize the SD host controller
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