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Update watchdog function comment and timeout comment.

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László Monda
2017-08-20 16:43:58 +02:00
parent 894172bd50
commit caf630204d
1 changed files with 4 additions and 3 deletions
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right/src/i2c_watchdog.c
+4 -3
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@@ -13,12 +13,13 @@ static uint32_t prevWatchdogCounter = 0;
uint32_t I2C_WatchdogInnerCounter; uint32_t I2C_WatchdogInnerCounter;
uint32_t I2C_WatchdogOuterCounter; uint32_t I2C_WatchdogOuterCounter;
// This function is designed to restart and reinstall the I2C handler // This function restarts and reinstalls the I2C handler when the I2C bus gets unresponsive
// when a disconnection of the left side makes the master I2C bus unresponsive. // by a misbehaving I2C slave, or by disconnecting the left keyboard half or an add-on module.
// This method relies on a patched KSDK which increments I2C_Watchdog upon I2C transfers.
void PIT_I2C_WATCHDOG_HANDLER(void) void PIT_I2C_WATCHDOG_HANDLER(void)
{ {
I2C_WatchdogOuterCounter++; I2C_WatchdogOuterCounter++;
if (I2C_Watchdog == prevWatchdogCounter) { // Restart I2C if there hasn't be any interrupt during 1 sec if (I2C_Watchdog == prevWatchdogCounter) { // Restart I2C if there hasn't be any interrupt during 100 ms
I2C_WatchdogInnerCounter++; I2C_WatchdogInnerCounter++;
i2c_master_config_t masterConfig; i2c_master_config_t masterConfig;
I2C_MasterGetDefaultConfig(&masterConfig); I2C_MasterGetDefaultConfig(&masterConfig);