This library for Seeed Studio's CAN-BUS Shield has a similar API to mbed's LPC1768 CAN library making it easy to add CAN functionality to mbed systems that support Arduino type 'Shields. This Beta release of my CAN-BUS Library is largely working but lacks interrupt 'attach' functions.
Dependents: Seeed_CAN_Hello_World ws-canrecv-1 CAN_SPI_modulo
Fork of SEEED_CAN by
seeed_can_spi.h
- Committer:
- Just4pLeisure
- Date:
- 2013-11-06
- Revision:
- 1:ad71faa09868
- Parent:
- 0:f5d099885d3d
- Child:
- 2:fd026fcfde94
File content as of revision 1:ad71faa09868:
/* seeed_can_spi.h * Copyright (c) 2013 Sophie Dexter * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef _SEEED_CAN_SPI_H_ #define _SEEED_CAN_SPI_H_ #include "seeed_can_defs.h" #ifdef __cplusplus extern "C" { #endif /** CAN driver typedefs */ /// Type definition to hold a Seeed Studios CAN-BUS Shield connections and resources structure struct Seeed_MCP_CAN_Shield { SPI spi; DigitalOut ncs; InterruptIn irq; Seeed_MCP_CAN_Shield(SPI _spi_, DigitalOut _ncs_, InterruptIn _irq_) : spi(_spi_), ncs(_ncs_), irq(_irq_) {} }; typedef struct Seeed_MCP_CAN_Shield can_t; /** mcp2515 spi instructions */ void mcpReset(can_t *obj); // reset the MCP2515 CAN controller chip uint8_t mcpRead(can_t *obj, // read from a single MCP2512 register const uint8_t address); void mcpReadMultiple(can_t *obj, // read multiple, sequential, registers into an array const uint8_t address, uint8_t values[], const uint8_t n); void mcpReadBuffer(can_t *obj, // read the specified receive buffer into an array const uint8_t command, uint8_t values[], const uint8_t n); void mcpWrite(can_t *obj, // write to a single MCP2512 register const uint8_t address, const uint8_t value); void mcpWriteMultiple(can_t *obj, // write an array into consecutive MCP2515 registers const uint8_t address, const uint8_t values[], const uint8_t n); void mcpWriteBuffer(can_t *obj, // write an array into the specified transmit buffer const uint8_t command, uint8_t values[], const uint8_t n); void mcpBufferRTS(can_t *obj, const uint8_t command); // initiate transmission of the specified MCP2515 transmit buffer uint8_t mcpStatus(can_t *obj); // read the MCP2515's status register uint8_t mcpReceiveStatus(can_t *obj); // read mcp2515's receive status register void mcpBitModify(can_t *obj, // modify bits of a register specified by a mask const uint8_t address, const uint8_t mask, const uint8_t data); #ifdef __cplusplus }; #endif #endif // SEEED_CAN_SPI_H