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F2837xD/F2838x/F2838x-M4 IPC Transmit

Transmit data to either core

  • Library:
  • Embedded Coder Support Package for Texas Instruments C2000 Processors / F2837xD

    Embedded Coder Support Package for Texas Instruments C2000 Processors / F2838x/ C28x

    Embedded Coder Support Package for Texas Instruments C2000 Processors / F2838x / M4

  • IPC Transmit

Description

The IPC Transmit block transmits data from one Core to the other.

Core1 transmits data to its allocated memory (Core1-to-Core2 Message RAM) and receives data from the allocated memory of Core2 (Core2-to-Core1 Message RAM). Similarly Core2 transmits data to its allocated memory (Core2-to-Core1 Message RAM) and receives data from allocated memory of Core1 (Core1-to-Core2 Message RAM). For F2838xD, Core1/Core2 can be CPU1,CPU2 or ARM Cortex-M4 (CM) and for F2837xD, Core1/Core2 can be CPU1 or CPU2.

If Core1 and Core2 are both C28x core, then the data and channel structure between two cores are allocated in Message RAM and the data array is allocated in Global Shared RAM. In C28x core, by default all the channel structures are created in Message RAM.

However, if one of the core is ARM Cortex M4 (applicable only for F2838x), then the data array is allocated only using Message RAM as global shared RAM is not available between cores. In order to accommodate more data, only required channel structures are created in Message RAM. Hence if the channel number used for transmit block in one core does not match with the receive block in other core the data transmission will not occur.

Ports

Input

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The port accepts data to be transmitted to the other Core as a vector or scalar.

Parameters

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The destination to which you want to send data. The destination selection is based on the processor you choose. For F2838x(C28x) processor, the destination is either C28x (CPU1/CPU2) or ARM Cortex-M4 (CM). For F2838x-M4 ARM core processor, the destination is CPU1 or CPU2.

The IPC Transmit block mask displays the current destination and the channel selected. For example, if the block displays C28x_Ch0, then the destination is C28x (CPU1/CPU2) and channel is 0. Similarly if the IPC Transmit block displays CM_Ch1, then the destination is ARM Cortex-M4 (CM) and channel is 1.

Note

This parameter is only available for F2838x(C28x) and F2838x-M4 ARM core processors.

The channel from which you want to transmit data. Each channel is a separate memory location in the shared memory.

Note

The transmitter and receiver have 32 channels each to transmit and receive data. For data transmission and reception, the transmitter and receiver must be set to the same channel number.

When enabled, after sending data, the Core waits until the other Core reads the data.

Introduced in R2018a