【MAX32660试用体验】我的一次不成功的spi程序

2230 SPI

问答对人有帮助，内容完整，我也想知道答案 0 本帖最后由 lustao 于 2019-4-18 09:54 编辑上周试验了下spi,使用Maxim 的Eclipse加载了Maxim的Examples spi SPI_Slave /** * [url=home.php?mod=space&uid=1455510]@file[/url] main.c * [url=home.php?mod=space&uid=2666770]@Brief[/url] SPI Master Demo * [url=home.php?mod=space&uid=2215779]@Details[/url] Shows Master loopback demo for SPI0 (AKA: SPI17Y) and SPI1 (AKA: SPIMSS) * Read the printf() for instructions / /****************************************************************************** * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. * * 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 MAXIM INTEGRATED 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. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. * * $Date: 2018-08-08 11:43:44 -0500 (Wed, 08 Aug 2018) $ * $Revision: 36747 $ * ****************************************************************************/ /* Includes */ #include #include #include #include "pb.h" #include "mxc_config.h" #include "led.h" #include "mxc_pins.h" #include "mxc_delay.h" #include "uart.h" #include "spi.h" /* Definitions */ #define TEST_LEN 60 #define TEST_LEN_BYTE 120 #define CLOCK_RATE 1000000 // Bit Rate #define TEST_MASTER SPI1A #define TEST_MASTER_IRQ SPI1_IRQn #define TEST_SLAVE SPI0A #define TEST_SLAVE_IRQ SPI0_IRQn /* Globals */ uint16_t master_rx_data[TEST_LEN]; uint16_t master_tx_data[TEST_LEN]; uint16_t slave_rx_data[TEST_LEN]; uint16_t slave_tx_data[TEST_LEN]; volatile int spi_slave_flag; volatile int spi_master_flag; gpio_cfg_t toggle = {PORT_0, PIN_9, GPIO_FUNC_OUT, GPIO_PAD_NONE}; /* Functions **/ void spi_master_cb(void req, int error) { spi_master_flag = error; } void spi_slave_cb(void req, int error) { spi_slave_flag = error; } void SPI0_IRQHandler(void) { SPI_Handler(SPI0A); } void SPI1_IRQHandler(void) { SPI_Handler(SPI1A); } int main(void) { int j; spi_req_t master_req; // Initialize SPI Request struct for Master spi_req_t slave_req; // Initialize SPI Request struct for Slave NVIC_EnableIRQ(TEST_MASTER_IRQ); NVIC_EnableIRQ(TEST_SLAVE_IRQ); printf("n*********** SPI Master and Slave Demo *************n"); printf("This example configures the SPI to send data between the SPI0 and SPI1. Connect SCK (P0.6) to SCK (P0.12)n"); printf("MOSI (P0.5) to MOSI (P0.11), MISO (P0.4) to MISO (P0.10) and SSEL (P0.7) to SSEL(P0.13) Connect these two pins together.n"); printf("This demo shows SPI sending different bit sizes each run through. n"); // delay before UART shutdown while (UART_Busy(MXC_UART_GET_UART(CONSOLE_UART))); Console_Shutdown(); // Initialize the tx_data for(j = 0; j < TEST_LEN; j++) { master_tx_data[j] = j; slave_tx_data[j] = TEST_LEN-j; } // Configure the peripheral if(SPI_Init(TEST_MASTER , 0, CLOCK_RATE) != E_NO_ERROR) { Console_Init(); printf("Error configuring SPIn"); while(1) {} } if(SPI_Init(TEST_SLAVE , 0, CLOCK_RATE ) != E_NO_ERROR) { Console_Init(); printf("Error configuring SPIn"); while(1) {} } // Initialize RX buffer to store data memset(master_rx_data, 0x0, TEST_LEN_BYTE); memset(slave_rx_data, 0x0, TEST_LEN_BYTE); GPIO_Config(&toggle); // Initialize spi_reqest struct for Master master_req.ssel = 0; master_req.ssel_pol = SPI_POL_LOW; master_req.deass = 1; master_req.tx_data = master_tx_data; master_req.rx_data = master_rx_data; master_req.len = TEST_LEN; master_req.width = SPI0_WIDTH_1; master_req.bits = 11; master_req.rx_num = 0; master_req.tx_num = 0; master_req.callback = spi_master_cb; // Initialize spi_request struct for slave slave_req.ssel = 0; slave_req.ssel_pol = SPI_POL_LOW; slave_req.tx_data = slave_tx_data; slave_req.rx_data = slave_rx_data; slave_req.len = TEST_LEN; slave_req.width = SPI0_WIDTH_1; slave_req.bits = 11; slave_req.tx_num = 0; slave_req.rx_num = 0; slave_req.callback = spi_slave_cb; spi_master_flag =1; spi_slave_flag =1; // Initiate the Slave Async first before Master Sync to make sure // data can be received and no data lost when master initiates communication SPI_SlaveTransAsync(TEST_SLAVE, &slave_req); SPI_MasterTrans(TEST_MASTER, &master_req); while(spi_slave_flag == 1) { } Console_Init(); // Print the data for(j = 0; j < TEST_LEN; j++) { printf("master data %x \| slave data %x n", master_tx_data[j], slave_rx_data[j]); } // Check the data sent from Master to Slave if (memcmp(slave_rx_data, master_tx_data, TEST_LEN_BYTE) == E_NO_ERROR) { printf("Data is verified.nn"); } else { printf("Data mismatch between slave_rx and master_txnn"); } // Print the data for(j = 0; j < TEST_LEN; j++) { printf("master data %x \| slave data %x n", slave_tx_data[j], master_rx_data[j]); } // Check the data sent from Slave to Master if (memcmp(master_rx_data, slave_tx_data, TEST_LEN_BYTE) == E_NO_ERROR) { printf("Data is verified.nn"); } else { printf("Data mismatch between master_rx and slave_tx_data.nn"); } Console_Init(); printf("n Done testing n"); return 0; } 复制代码* 连接4对引线，成功运行。改了下用spi1B口和用板提供按键pb,放Console的接口。 /** * @file main.c * @brief SPI Master Demo * @details Shows Master loopback demo for SPI0 (AKA: SPI17Y) and SPI1 (AKA: SPIMSS) * Read the printf() for instructions / /****************************************************************************** * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. * * 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 MAXIM INTEGRATED 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. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. * * $Date: 2018-08-08 11:43:44 -0500 (Wed, 08 Aug 2018) $ * $Revision: 36747 $ * ****************************************************************************/ /* Includes */ #include #include #include #include "pb.h" #include "mxc_config.h" #include "led.h" #include "mxc_pins.h" #include "mxc_delay.h" #include "tmr.h" #include "tmr_utils.h" #include "uart.h" #include "spi.h" /* Definitions */ #define TEST_LEN 60 #define TEST_LEN_BYTE 120 #define CLOCK_RATE 6000000 // Bit Rate #define TEST_MASTER SPI1B #define TEST_MASTER_IRQ SPI1_IRQn #define TEST_SLAVE SPI0A #define TEST_SLAVE_IRQ SPI0_IRQn volatile int buttonPressed = 0; /* Globals */ uint16_t master_rx_data[TEST_LEN]; uint16_t master_tx_data[TEST_LEN]; uint16_t slave_rx_data[TEST_LEN]; uint16_t slave_tx_data[TEST_LEN]; volatile int spi_slave_flag; volatile int spi_master_flag; uint16_t count=0; uint16_t count1=0; uint16_t countm=0; uint16_t countm1=0; uint32_t ticks[5]; uint16_t deccount=0; // gpio_cfg_t toggle = {PORT_0, PIN_9, GPIO_FUNC_OUT, GPIO_PAD_NONE}; /* Functions **/ void spi_master_cb(void req, int error) { spi_master_flag = error; countm1++; } void spi_slave_cb(void req, int error) { spi_slave_flag = error; count1++; } void SPI0_IRQHandler(void) { SPI_Handler(SPI0A); countm++; } void SPI1_IRQHandler(void) { SPI_Handler(SPI1B); count++; } void buttonHandler(void pb) { buttonPressed = 1; } int main(void) { tmr_cfg_t tmr; uint32_t period_ticks; TMR_Disable(MXC_TMR2); TMR_Init(MXC_TMR2, TMR_PRES_1, 0); tmr.mode = TMR_MODE_CONTINUOUS; tmr.cmp_cnt = 0xffffffff; tmr.pol = 0; TMR_Config(MXC_TMR2, &tmr); TMR_Enable(MXC_TMR2); period_ticks=TMR_GetCount(MXC_TMR2); printf("MXC_TMR2 timer started.TMR_GetCount(MXC_TMR2) is %dn",TMR_GetCount(MXC_TMR2)); /* Configure wake-up for GPIO pin corresponding to pushbutton / LP_EnableGPIOWakeup((gpio_cfg_t )&pb_pin[0]); PB_RegisterCallback(0, buttonHandler); printf("LP_EnableGPIOWakeup started.TMR_GetCount(MXC_TMR2) is %dn",TMR_GetCount(MXC_TMR2)); int j; spi_req_t master_req; // Initialize SPI Request struct for Master spi_req_t slave_req; // Initialize SPI Request struct for Slave NVIC_EnableIRQ(TEST_MASTER_IRQ); NVIC_EnableIRQ(TEST_SLAVE_IRQ); printf("n************ SPI Master and Slave Demo ************n"); printf("This example configures the SPI to send data between the SPI0 and SPI1. Connect SCK (P0.6) to SCK (P0.2)n"); printf("MOSI (P0.5) to MOSI (P0.1), MISO (P0.4) to MISO (P0.0) and SSEL (P0.7) to SSEL(P0.3) Connect these two pins together.n"); printf("This demo shows SPI sending different bit sizes each run through. n"); printf( " An interrupt is set up on P0.12. when that interrupt occurs.using a push button (S1) to start SPI Master and Slave 60-countnn"); // Initialize the tx_data for(j = 0; j < TEST_LEN; j++) { master_tx_data[j] = j; slave_tx_data[j] = TEST_LEN-j; } // Configure the peripheral if(SPI_Init(TEST_MASTER , 0, CLOCK_RATE) != E_NO_ERROR) { Console_Init(); printf("Error configuring SPIn"); while(1) {} } if(SPI_Init(TEST_SLAVE , 0, CLOCK_RATE ) != E_NO_ERROR) { Console_Init(); printf("Error configuring SPIn"); while(1) {} } // Initialize RX buffer to store data memset(master_rx_data, 0x0, TEST_LEN_BYTE); memset(slave_rx_data, 0x0, TEST_LEN_BYTE); // GPIO_Config(&toggle); // Initialize spi_reqest struct for Master master_req.ssel = 0; master_req.ssel_pol = SPI_POL_LOW; master_req.deass = 1; master_req.tx_data = master_tx_data; master_req.rx_data = master_rx_data; master_req.len = TEST_LEN; master_req.width = SPI0_WIDTH_1; master_req.bits = 8; master_req.rx_num = 0; master_req.tx_num = 0; master_req.callback = spi_master_cb; // Initialize spi_request struct for slave master_req.ssel = 0; slave_req.ssel_pol = SPI_POL_LOW; slave_req.tx_data = slave_tx_data; slave_req.rx_data = slave_rx_data; slave_req.len = TEST_LEN; slave_req.width = SPI0_WIDTH_1; slave_req.bits = 8; slave_req.tx_num = 0; slave_req.rx_num = 0; slave_req.callback = spi_slave_cb; spi_master_flag =1; spi_slave_flag =1; // delay before UART shutdown printf("time tick:%dn tick over%d. n",period_ticks,TMR_GetCount(MXC_TMR2)-period_ticks); //printf("delay before UART shutdown. n"); //while (UART_Busy(MXC_UART_GET_UART(CONSOLE_UART))); //Console_Shutdown(); // Initiate the Slave Async first before Master Sync to make sure // data can be received and no data lost when master initiates communication ticks[0]=TMR_GetCount(MXC_TMR2); const sys_cfg_tmr_t sys_tmr_cfg = {0}; // Do not enable timer output. SPI_SlaveTransAsync(TEST_SLAVE, &slave_req); SPI_MasterTrans(TEST_MASTER, &master_req); //while (spi_slave_flag == 1); while (1) { if (buttonPressed) { printf("n********** SPI slave_rx_data Slave is %d ************n",deccount++); printf("time start :%d:tick over-spi-end:%d. n",period_ticks,ticks[1]); printf("tick-spi_master count :%d:tick-spi_master_flag count:%d. n",countm,countm1); printf("tick-spi_slave count :%d:tick-spi_slave_flag count:%d. n",count,count1); printf("MXC_TMR2 timer .TMR_GetCount(MXC_TMR2) is %dn",TMR_GetCount(MXC_TMR2)); printf("n********** SPI slave_rx_data Slave is %d start *************n",deccount); if( deccount>59){ deccount=0; } for(j = 0; j < deccount; j++) { slave_rx_data[TEST_LEN-j-1]=0xff; } slave_req.len = TEST_LEN-deccount; // delay before UART shutdown printf("time tick:%dn tick over%d. n",period_ticks,TMR_GetCount(MXC_TMR2)-period_ticks); // Configure the peripheral if(SPI_Init(TEST_MASTER , 0, CLOCK_RATE) != E_NO_ERROR) { Console_Init(); printf("Error configuring SPIn"); while(1) {} } if(SPI_Init(TEST_SLAVE , 0, CLOCK_RATE ) != E_NO_ERROR) { Console_Init(); printf("Error configuring SPIn"); while(1) {} } // Initialize spi_reqest struct for Master master_req.ssel = 0; master_req.ssel_pol = SPI_POL_LOW; master_req.deass = 1; master_req.tx_data = master_tx_data; master_req.rx_data = master_rx_data; master_req.len = TEST_LEN; master_req.width = SPI0_WIDTH_1; master_req.bits = 8; master_req.rx_num = 0; master_req.tx_num = 0; master_req.callback = spi_master_cb; // Initialize spi_request struct for slave master_req.ssel = 0; slave_req.ssel_pol = SPI_POL_LOW; slave_req.tx_data = slave_tx_data; slave_req.rx_data = slave_rx_data; slave_req.width = SPI0_WIDTH_1; slave_req.bits = 8; slave_req.tx_num = 0; slave_req.rx_num = 0; slave_req.callback = spi_slave_cb; ticks[0]=TMR_GetCount(MXC_TMR2); SPI_SlaveTransAsync(TEST_SLAVE, &slave_req); SPI_MasterTrans(TEST_MASTER, &master_req); // Delay for switch debouncing. TMR_Delay(MXC_TMR0, MSEC(100), &sys_tmr_cfg); // Re-arm switch detection. printf(" buttonPressed is ON count = %dn", count++); buttonPressed = 0; } while(spi_slave_flag == 1){for(j = 0; j < 1; j++) ;} else{ ticks[1]=TMR_GetCount(MXC_TMR2); //Console_Init(); // Print the data for(j = 0; j < TEST_LEN; j++) { printf("master data %x \| slave data %x n", master_tx_data[j], slave_rx_data[j]); } // Check the data sent from Master to Slave if (memcmp(slave_rx_data, master_tx_data, TEST_LEN_BYTE) == E_NO_ERROR) { printf("Data is verified.nn"); } else { printf("Data mismatch between slave_rx and master_txnn"); } // Print the data for(j = 0; j < TEST_LEN; j++) { printf("master data %x \| slave data %x n", slave_tx_data[j], master_rx_data[j]); } // Check the data sent from Slave to Master if (memcmp(master_rx_data, slave_tx_data, TEST_LEN_BYTE) == E_NO_ERROR) { printf("Data is verified.nn"); } else { printf("Data mismatch between master_rx and slave_tx_data.nn"); } //Console_Init(); printf("n Done testing n"); printf("time tick-spi start :%d:tick over-spi-end:%d. n",ticks[0],ticks[1]); printf("tick-spi_master count :%d:tick-spi_master_flag count:%d. n",countm,countm1); printf("tick-spi_slave count :%d:tick-spi_slave_flag count:%d. n",count,count1); printf("MXC_TMR2 timer .TMR_GetCount(MXC_TMR2) is %dn",TMR_GetCount(MXC_TMR2)); spi_slave_flag =1; } } } 复制代码* 没成功，程序停在了MXC_AssertionsSPI17Y处，之后再调试或运行程序都烧写不了代码了，估计与没有关和开控制台Console_Init和Console_Shutdown();有关。 0
2019-4-17 11:24:16　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × 谢新貌该类别下有 43 个回答。邀请回答新星之火12138 该类别下有 39 个回答。邀请回答 911119qianhao 该类别下有 35 个回答。邀请回答 hgimtk 该类别下有 32 个回答。邀请回答 wang21cj 该类别下有 31 个回答。邀请回答独孤辉二该类别下有 27 个回答。邀请回答 wuli北该类别下有 25 个回答，其中被选为最佳答案 1 次。邀请回答 hy381 该类别下有 24 个回答。邀请回答周鹏生该类别下有 24 个回答。邀请回答修罗君该类别下有 24 个回答，其中被选为最佳答案 1 次。邀请回答 butterflydw 该类别下有 24 个回答。邀请回答牛牛爱吃草该类别下有 24 个回答。邀请回答 horayte 该类别下有 24 个回答，其中被选为最佳答案 1 次。邀请回答大洼球王该类别下有 23 个回答。邀请回答 32949523596693 该类别下有 23 个回答。邀请回答蔡甸一角该类别下有 23 个回答。邀请回答 hisysteeoke 该类别下有 23 个回答。邀请回答名士流该类别下有 23 个回答。邀请回答 a732538 该类别下有 22 个回答。邀请回答 testd27 该类别下有 22 个回答，其中被选为最佳答案 1 次。邀请回答举报卢松涛相关推荐 • 请问一下MAX32660的开发流程是怎样的呢 1320 • MAX32660支持哪些系统平台？ 403 • 如何利用MSP430FR2676TPTR和MAX32660等微控制器来促进可穿戴式设计？ 1179 • 【MAX32660试用体验】MAX32660按键控制LED 2226 • 24L01收发数据包发送不成功 1249 • 俺严格按照JTAG固件烧录指导进行烧录不成功的原因？ 2047 • 新手使用cpld，烧录经常不成功 7132 • 利用单片机430_5324的SPI配置AD9517，配置不成功的原因？ 222 • SD卡写多个块的函数不成功 2615 • 我用24l01模块，f1和f4通讯的时候，f1做主机，F4做从机，然后通讯每次都是主机重启的第一次发送成功？ 749