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forked from me/IronOS
This commit is contained in:
Ben V. Brown
2021-02-24 17:52:40 +11:00
parent 530002297b
commit 296c2f9351

View File

@@ -64,29 +64,21 @@ bool perform_i2c_transaction(uint16_t DevAddress, uint16_t memory_address, uint8
i2c_interrupt_disable(I2C0, I2C_INT_EV);
currentState.isMemoryWrite = isWrite;
//Setup DMA
currentState.dma_init_struct.memory_width = DMA_MEMORY_WIDTH_8BIT;
currentState.dma_init_struct.memory_addr = (uint32_t) p_buffer;
currentState.dma_init_struct.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
currentState.dma_init_struct.number = number_of_byte;
currentState.dma_init_struct.periph_addr = (uint32_t) &I2C_DATA(I2C0);
currentState.dma_init_struct.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
currentState.dma_init_struct.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
currentState.dma_init_struct.priority = DMA_PRIORITY_ULTRA_HIGH;
if (currentState.isMemoryWrite) {
dma_deinit(DMA0, DMA_CH5);
currentState.dma_init_struct.direction = DMA_MEMORY_TO_PERIPHERAL;
currentState.dma_init_struct.memory_addr = (uint32_t) p_buffer;
currentState.dma_init_struct.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
currentState.dma_init_struct.memory_width = DMA_MEMORY_WIDTH_8BIT;
currentState.dma_init_struct.number = number_of_byte;
currentState.dma_init_struct.periph_addr = (uint32_t) &I2C_DATA(I2C0);
currentState.dma_init_struct.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
currentState.dma_init_struct.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
currentState.dma_init_struct.priority = DMA_PRIORITY_ULTRA_HIGH;
dma_init(DMA0, DMA_CH5, (dma_parameter_struct*) &currentState.dma_init_struct);
} else {
dma_deinit(DMA0, DMA_CH6);
currentState.dma_init_struct.direction = DMA_PERIPHERAL_TO_MEMORY;
currentState.dma_init_struct.memory_addr = (uint32_t) p_buffer;
currentState.dma_init_struct.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
currentState.dma_init_struct.memory_width = DMA_MEMORY_WIDTH_8BIT;
currentState.dma_init_struct.number = number_of_byte;
currentState.dma_init_struct.periph_addr = (uint32_t) &I2C_DATA(I2C0);
currentState.dma_init_struct.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
currentState.dma_init_struct.periph_width = DMA_PERIPHERAL_WIDTH_8BIT;
currentState.dma_init_struct.priority = DMA_PRIORITY_ULTRA_HIGH;
dma_init(DMA0, DMA_CH6, (dma_parameter_struct*) &currentState.dma_init_struct);
}