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A
Fork of STM32-NRF-SPI_07112016 by
Diff: main.cpp
- Revision:
- 0:5810870d2b29
- Child:
- 3:b4887e2837ab
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Oct 22 05:08:52 2014 +0000 @@ -0,0 +1,102 @@ +/* + +Copyright (c) 2012-2014 RedBearLab + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software +and associated documentation files (the "Software"), to deal in the Software without restriction, +including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +*/ + +#include "mbed.h" +#include "spi_master.h" + +DigitalOut spi_cs(P0_7); + +SPIClass SPI1(NRF_SPI1); + +Serial pc(USBTX, USBRX); + +void Flash_Buff_WriteBytes(uint16_t addr, uint8_t *pbuf, uint16_t len) +{ + uint16_t index; + + spi_cs = 0; + wait_us(200); + + SPI1.transfer(0x84); + SPI1.transfer(0x00); + SPI1.transfer((uint8_t)(addr>>8)); + SPI1.transfer((uint8_t)addr); + for(index=0; index<len; index++) + { + SPI1.transfer(*pbuf); + pbuf++; + } + + wait_us(200); + spi_cs = 1; +} + +void Flash_Buff_ReadBytes(uint16_t addr, uint8_t *pbuf, uint16_t len) +{ + uint16_t index; + + spi_cs = 0; + wait_us(200); + + SPI1.transfer(0xD1); + SPI1.transfer(0x00); + SPI1.transfer((uint8_t)(addr>>8)); + SPI1.transfer((uint8_t)addr); + for(index=0; index<len; index++) + { + *pbuf = SPI1.transfer(0x00); + pbuf++; + } + + wait_us(200); + spi_cs = 1; +} + +uint8_t i; +uint8_t wt_buf[7] = {'H','e','l','l', 'o', '\r', '\n'}; +uint8_t rd_buf[7]; + +int main(void) +{ + pc.baud(9600); + wait(8); + spi_cs = 1; + pc.printf("SPI Demo Start \r\n"); + + //SPI1.begin(); + SPI1.begin(P0_6, P0_15, P0_29);//SCK, MOSI, MOSI + + wait(1); + Flash_Buff_WriteBytes(0, wt_buf, 7); + while(1) + { + memset(rd_buf, 0x00, 7); + Flash_Buff_ReadBytes(0, rd_buf, 7); + for(i=0; i<7; i++) + pc.putc(rd_buf[i]); + wait(1); + } +} + + + + + + +