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Try to resurrect I2C not only in the watchdog but upon initialization. This may be useful when only the right half reboots after a firmware upgrade.

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László Monda
2017-09-30 22:17:44 +02:00
parent 894103a944
commit b49cb30070
1 changed files with 56 additions and 1 deletions
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57
right/src/init_peripherals.c
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@@ -23,7 +23,7 @@ void InitInterruptPriorities(void)
void InitI2c(void)
{
port_pin_config_t pinConfig = {
port_pin_config_t pinConfig = {
.pullSelect = kPORT_PullUp,
.openDrainEnable = kPORT_OpenDrainEnable
};
@@ -37,6 +37,61 @@ void InitI2c(void)
CLOCK_EnableClock(I2C_MAIN_BUS_SDA_CLOCK);
CLOCK_EnableClock(I2C_MAIN_BUS_SCL_CLOCK);
PORT_SetPinMux(I2C_MAIN_BUS_SCL_PORT, I2C_MAIN_BUS_SCL_PIN, kPORT_MuxAsGpio);
GPIO_PinInit(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, &(gpio_pin_config_t){kGPIO_DigitalOutput, 1});
PORT_SetPinMux(I2C_MAIN_BUS_SCL_PORT, I2C_MAIN_BUS_SDA_PIN, kPORT_MuxAsGpio);
GPIO_PinInit(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SDA_PIN, &(gpio_pin_config_t){kGPIO_DigitalOutput, 1});
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SDA_GPIO, I2C_MAIN_BUS_SDA_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SCL_GPIO, I2C_MAIN_BUS_SCL_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SDA_GPIO, I2C_MAIN_BUS_SDA_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SDA_GPIO, I2C_MAIN_BUS_SDA_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SDA_GPIO, I2C_MAIN_BUS_SDA_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SDA_GPIO, I2C_MAIN_BUS_SDA_PIN, 0);
for (volatile uint32_t i=0; i<10000; i++);
GPIO_WritePinOutput(I2C_MAIN_BUS_SDA_GPIO, I2C_MAIN_BUS_SDA_PIN, 1);
for (volatile uint32_t i=0; i<10000; i++);
pinConfig.mux = I2C_MAIN_BUS_MUX;
PORT_SetPinConfig(I2C_MAIN_BUS_SDA_PORT, I2C_MAIN_BUS_SDA_PIN, &pinConfig);
PORT_SetPinConfig(I2C_MAIN_BUS_SCL_PORT, I2C_MAIN_BUS_SCL_PIN, &pinConfig);