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sdmmc_host: add unit tests and improve documents about using eMMC in 4-line SDR mode

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This commit is contained in:
Michael (XIAO Xufeng) 2021-04-25 18:34:37 +08:00
parent 00a66083c7
commit 02970813b8
2 changed files with 9 additions and 2 deletions
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7
components/sdmmc/test/test_sd.c
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@ -138,6 +138,13 @@ TEST_CASE("probe eMMC, slot 0, 4-bit, DDR", "[sd][test_env=EMMC]")
probe_sd(SDMMC_HOST_SLOT_0, 4, SDMMC_FREQ_HIGHSPEED, 1);
}
TEST_CASE("probe eMMC, slot 0, 4-bit", "[sd][test_env=EMMC]")
{
probe_sd(SDMMC_HOST_SLOT_0, 4, SDMMC_FREQ_PROBING, 0);
probe_sd(SDMMC_HOST_SLOT_0, 4, SDMMC_FREQ_DEFAULT, 0);
probe_sd(SDMMC_HOST_SLOT_0, 4, SDMMC_FREQ_HIGHSPEED, 0);
}
TEST_CASE("probe eMMC, slot 0, 8-bit", "[sd][test_env=EMMC]")
{
probe_sd(SDMMC_HOST_SLOT_0, 8, SDMMC_FREQ_PROBING, 0);

4
docs/en/api-reference/peripherals/sdmmc_host.rst
View File

@ -51,8 +51,8 @@ Supported Speed Modes
SDMMC Host driver supports the following speed modes:
- Default Speed (20 MHz), 4-line/1-line (with SD cards), and 8-line (with 3.3 V eMMC)
- High Speed (40 MHz), 4-line/1-line (with SD cards), and 8-line (with 3.3 V eMMC)
- Default Speed (20 MHz), 1/4-line (with SD cards), and 1/4/8-line (with 3.3 V eMMC)
- High Speed (40 MHz), 1/4-line (with SD cards), and 1/4/8-line (with 3.3 V eMMC)
- High Speed DDR (40 MHz), 4-line (with 3.3 V eMMC)
Speed modes not supported at present: