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| author | Karl Palsson <karlp@tweak.net.au> | 2017-03-23 23:37:25 +0000 |
|---|---|---|
| committer | Karl Palsson <karlp@tweak.net.au> | 2017-03-23 23:37:25 +0000 |
| commit | 5e1ba4064104c64d383f083dd233de858a47aae8 (patch) | |
| tree | a141d6a73b21be80f7f4253bbf92ce91b8d18e76 /tests/i2c-master/main-stm32f072-disco.c | |
| parent | 112e9e681432e4abf74dd4b3191b67e72b9df93d (diff) | |
| download | olsndot-5e1ba4064104c64d383f083dd233de858a47aae8.tar.gz olsndot-5e1ba4064104c64d383f083dd233de858a47aae8.tar.bz2 olsndot-5e1ba4064104c64d383f083dd233de858a47aae8.zip | |
i2c-master: add 400k speed support on v1/v2
Diffstat (limited to 'tests/i2c-master/main-stm32f072-disco.c')
| -rw-r--r-- | tests/i2c-master/main-stm32f072-disco.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tests/i2c-master/main-stm32f072-disco.c b/tests/i2c-master/main-stm32f072-disco.c index 8818665..b156e3c 100644 --- a/tests/i2c-master/main-stm32f072-disco.c +++ b/tests/i2c-master/main-stm32f072-disco.c @@ -28,7 +28,7 @@ struct hw_detail hw_details = { .trigger_rcc = RCC_GPIOB, .trigger_port = GPIOB, .trigger_pin = GPIO12, - .i2c_clock_megahz = 48, // FIXME + .i2c_clock_megahz = 48, }; @@ -67,6 +67,9 @@ static void i2cm_hw_init(void) gpio_mode_setup(hw_details.port, GPIO_MODE_AF, GPIO_PUPD_NONE, hw_details.pins); gpio_set_output_options(hw_details.port, GPIO_OTYPE_OD, GPIO_OSPEED_HIGH, hw_details.pins); gpio_set_af(hw_details.port, GPIO_AF1, hw_details.pins); + + /* select sysclk as i2c clock! */ + RCC_CFGR3 |= RCC_CFGR3_I2C1SW; } |