Josse Brys / Mbed 2 deprecated SPI_Demo_Nano

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

main.cpp@0:b720fba8540a, 2015-07-28 (annotated)

Committer:
jossebrys
Date:
Tue Jul 28 17:20:58 2015 +0000
Revision:
0:b720fba8540a
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jossebrys 0:b720fba8540a 1 /*
jossebrys 0:b720fba8540a 2
jossebrys 0:b720fba8540a 3 Copyright (c) 2012-2014 RedBearLab
jossebrys 0:b720fba8540a 4
jossebrys 0:b720fba8540a 5 Permission is hereby granted, free of charge, to any person obtaining a copy of this software
jossebrys 0:b720fba8540a 6 and associated documentation files (the "Software"), to deal in the Software without restriction,
jossebrys 0:b720fba8540a 7 including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
jossebrys 0:b720fba8540a 8 and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
jossebrys 0:b720fba8540a 9 subject to the following conditions:
jossebrys 0:b720fba8540a 10 The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
jossebrys 0:b720fba8540a 11
jossebrys 0:b720fba8540a 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
jossebrys 0:b720fba8540a 13 INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
jossebrys 0:b720fba8540a 14 PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
jossebrys 0:b720fba8540a 15 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
jossebrys 0:b720fba8540a 16 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
jossebrys 0:b720fba8540a 17
jossebrys 0:b720fba8540a 18 */
jossebrys 0:b720fba8540a 19
jossebrys 0:b720fba8540a 20 #include "mbed.h"
jossebrys 0:b720fba8540a 21 #include "spi_master.h"
jossebrys 0:b720fba8540a 22
jossebrys 0:b720fba8540a 23 DigitalOut spi_cs(P0_7);
jossebrys 0:b720fba8540a 24
jossebrys 0:b720fba8540a 25 SPIClass SPI1(NRF_SPI1);
jossebrys 0:b720fba8540a 26
jossebrys 0:b720fba8540a 27 Serial pc(USBTX, USBRX);
jossebrys 0:b720fba8540a 28
jossebrys 0:b720fba8540a 29 void Flash_Buff_WriteBytes(uint16_t addr, uint8_t *pbuf, uint16_t len)
jossebrys 0:b720fba8540a 30 {
jossebrys 0:b720fba8540a 31 uint16_t index;
jossebrys 0:b720fba8540a 32
jossebrys 0:b720fba8540a 33 spi_cs = 0;
jossebrys 0:b720fba8540a 34 wait_us(200);
jossebrys 0:b720fba8540a 35
jossebrys 0:b720fba8540a 36 SPI1.transfer(0x84);
jossebrys 0:b720fba8540a 37 SPI1.transfer(0x00);
jossebrys 0:b720fba8540a 38 SPI1.transfer((uint8_t)(addr>>8));
jossebrys 0:b720fba8540a 39 SPI1.transfer((uint8_t)addr);
jossebrys 0:b720fba8540a 40 for(index=0; index<len; index++)
jossebrys 0:b720fba8540a 41 {
jossebrys 0:b720fba8540a 42 SPI1.transfer(*pbuf);
jossebrys 0:b720fba8540a 43 pbuf++;
jossebrys 0:b720fba8540a 44 }
jossebrys 0:b720fba8540a 45
jossebrys 0:b720fba8540a 46 wait_us(200);
jossebrys 0:b720fba8540a 47 spi_cs = 1;
jossebrys 0:b720fba8540a 48 }
jossebrys 0:b720fba8540a 49
jossebrys 0:b720fba8540a 50 void Flash_Buff_ReadBytes(uint16_t addr, uint8_t *pbuf, uint16_t len)
jossebrys 0:b720fba8540a 51 {
jossebrys 0:b720fba8540a 52 uint16_t index;
jossebrys 0:b720fba8540a 53
jossebrys 0:b720fba8540a 54 spi_cs = 0;
jossebrys 0:b720fba8540a 55 wait_us(200);
jossebrys 0:b720fba8540a 56
jossebrys 0:b720fba8540a 57 SPI1.transfer(0xD1);
jossebrys 0:b720fba8540a 58 SPI1.transfer(0x00);
jossebrys 0:b720fba8540a 59 SPI1.transfer((uint8_t)(addr>>8));
jossebrys 0:b720fba8540a 60 SPI1.transfer((uint8_t)addr);
jossebrys 0:b720fba8540a 61 for(index=0; index<len; index++)
jossebrys 0:b720fba8540a 62 {
jossebrys 0:b720fba8540a 63 *pbuf = SPI1.transfer(0x00);
jossebrys 0:b720fba8540a 64 pbuf++;
jossebrys 0:b720fba8540a 65 }
jossebrys 0:b720fba8540a 66
jossebrys 0:b720fba8540a 67 wait_us(200);
jossebrys 0:b720fba8540a 68 spi_cs = 1;
jossebrys 0:b720fba8540a 69 }
jossebrys 0:b720fba8540a 70
jossebrys 0:b720fba8540a 71 uint8_t i;
jossebrys 0:b720fba8540a 72 uint8_t wt_buf[7] = {'H','e','l','l', 'o', '\r', '\n'};
jossebrys 0:b720fba8540a 73 uint8_t rd_buf[7];
jossebrys 0:b720fba8540a 74
jossebrys 0:b720fba8540a 75 int main(void)
jossebrys 0:b720fba8540a 76 {
jossebrys 0:b720fba8540a 77 pc.baud(9600);
jossebrys 0:b720fba8540a 78 wait(8);
jossebrys 0:b720fba8540a 79 spi_cs = 1;
jossebrys 0:b720fba8540a 80 pc.printf("SPI Demo Start \r\n");
jossebrys 0:b720fba8540a 81
jossebrys 0:b720fba8540a 82 //SPI1.begin();
jossebrys 0:b720fba8540a 83 SPI1.begin(P0_6, P0_15, P0_29);//SCK, MOSI, MOSI
jossebrys 0:b720fba8540a 84
jossebrys 0:b720fba8540a 85 wait(1);
jossebrys 0:b720fba8540a 86 Flash_Buff_WriteBytes(0, wt_buf, 7);
jossebrys 0:b720fba8540a 87 while(1)
jossebrys 0:b720fba8540a 88 {
jossebrys 0:b720fba8540a 89 memset(rd_buf, 0x00, 7);
jossebrys 0:b720fba8540a 90 Flash_Buff_ReadBytes(0, rd_buf, 7);
jossebrys 0:b720fba8540a 91 for(i=0; i<7; i++)
jossebrys 0:b720fba8540a 92 pc.putc(rd_buf[i]);
jossebrys 0:b720fba8540a 93 wait(1);
jossebrys 0:b720fba8540a 94 }
jossebrys 0:b720fba8540a 95 }
jossebrys 0:b720fba8540a 96
jossebrys 0:b720fba8540a 97
jossebrys 0:b720fba8540a 98
jossebrys 0:b720fba8540a 99
jossebrys 0:b720fba8540a 100
jossebrys 0:b720fba8540a 101
jossebrys 0:b720fba8540a 102