Increase priority of I2C

gaborcsapo · Jun 29, 2022 · e25c017 · e25c017
1 parent 46204bf
commit e25c017
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diff --git a/source/board/microbitv2/i2c.c b/source/board/microbitv2/i2c.c
@@ -136,6 +136,8 @@ int32_t i2c_initialize(void) {
     slaveConfig.enableWakeUp   = true;
 
     I2C_SlaveInit(I2C_SLAVE_BASEADDR, &slaveConfig, I2C_SLAVE_CLK_FREQ);
+
+    NVIC_SetPriority(I2C1_IRQn, 0x00);  /* set highest priority */
 
     i2c_start_transfer();
 

diff --git a/source/board/microbitv2/power.c b/source/board/microbitv2/power.c
@@ -94,7 +94,9 @@ void power_init(void)
     /* Enable rising edge interrupt on WAKE_ON_EDGE pin (VBUS falling edge) to detect USB detach */
     PORT_SetPinInterruptConfig(PIN_WAKE_ON_EDGE_PORT, PIN_WAKE_ON_EDGE_BIT, kPORT_InterruptRisingEdge);
 
+    NVIC_SetPriority(LLWU_IRQn, (1UL << __NVIC_PRIO_BITS) - 1UL);
     NVIC_EnableIRQ(LLWU_IRQn);
+    NVIC_SetPriority(PORTC_PORTD_IRQn, (1UL << __NVIC_PRIO_BITS) - 1UL);
     NVIC_EnableIRQ(PORTC_PORTD_IRQn);
 }