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Pass i2c_message_t messages not only from the left half to the right, but vice versa.

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László Monda
2017-09-26 04:12:05 +02:00
parent b88c6e4291
commit 3b3e40af83
3 changed files with 36 additions and 12 deletions
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26
left/src/init_peripherals.c
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@@ -10,24 +10,40 @@
#include "slave_protocol_handler.h"
#include "i2c_watchdog.h"
uint8_t byteIn;
uint8_t rxMessagePos;
i2c_slave_transfer_event_t prevEvent;
static void i2cSlaveCallback(I2C_Type *base, i2c_slave_transfer_t *xfer, void *userData)
{
if (prevEvent != kI2C_SlaveReceiveEvent && xfer->event == kI2C_SlaveReceiveEvent) {
rxMessagePos = 0;
memset(&rxMessage, 0, I2C_BUFFER_MAX_LENGTH);
} else if (prevEvent == kI2C_SlaveReceiveEvent && xfer->event == kI2C_SlaveCompletionEvent) {
((uint8_t*)&rxMessage)[rxMessagePos] = byteIn;
rxMessage.length = rxMessagePos-3;
SlaveRxHandler();
} else if (prevEvent == kI2C_SlaveReceiveEvent && xfer->event == kI2C_SlaveReceiveEvent) {
((uint8_t*)&rxMessage)[rxMessagePos++] = byteIn;
}
switch (xfer->event) {
case kI2C_SlaveTransmitEvent:
SlaveProtocolHandler();
SlaveTxHandler();
xfer->data = (uint8_t*)&txMessage;
xfer->dataSize = txMessage.length+3;
break;
case kI2C_SlaveReceiveEvent:
xfer->data = (uint8_t*)&rxMessage;
// xfer->dataSize = I2C_BUFFER_MAX_LENGTH;
SlaveProtocolHandler();
xfer->data = (uint8_t*)&byteIn;
xfer->dataSize = 1;
break;
case kI2C_SlaveCompletionEvent:
//SlaveProtocolHandler();
break;
default:
break;
}
prevEvent = xfer->event;
}
void InitInterruptPriorities()