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  1. CC3200R chip with the ARM® Cortex®-M4 Core at 80 MHz CC3200 board based on the Launch_XL reference design Service Pack: servicepack_1.0.1.11-2.9.0.0 Energia IDE 1.6.10E18 Windows 10 Hello, Thank you for having this great forum and all the work you have done for the CC3200 SoC. I am having an issue with my project. I am utilizing the CC3200 for an IoT project. We recently did an installation of our prototype at a venue where they use a WEP network. Our CC3200 boards have worked fine with WPA networks but this is the first instance where we have had to work with a WEP network. Before I have them changing their network(in the middle of the woods at a campground) I was hoping to sort out why the WEP connection fails. Just using the ConnectwithWEP example provided by Energia IDE which utilizes the WiFi and wlan libraries I am unable to connect to a WEP network. I have recreated the network at my home setting up a WEP network using a 10 character hexadecimal key which is what they are using. (64 bit Encrypted WEP network) char ssid[] = "myssid"; int key_idx = 0; char key[] = "##########"; (where # is 0-9 A-F 10 characters long) The board finds the network but never connects (Attempting to to connect to Network named myssid ...........) However, If i make the key 13 characters long I connect to the network but then it sits waiting to be assigned an ip address. Furthermore, if I assign a static ip the board connects and is assigned the static ip but I have no network access via pinging the board or retrieving a web page via a GET request. I have read about this similar issue here: https://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc31xx_cc32xx/f/968/t/415573 but it never seemed to have been answered. It seems like there is an issue with using 10 hexadecimal characters vs 13 ASCII characters. When I use the 10 character string it never gets to a certain point. If I add an additional 3 characters it makes it to a certain point but of course the key is wrong and so it is never assigned an ip address. I am able to connect to the WEP network with my pc and mobile phone. I have know idea what they use behind the scenes for making the network connection. I have begun looking through the WiFi libraries but it seems odd the problem would be there. It has survived through both Arduino and Energia trials and scrutiny. Any ideas of what I might try? Many thanks Sam
  2. I've been tinkering with AWS IoT in conjunction with CC3200 + Energia for a while now with varying degrees of success. The purpose of this post is using the RESTful API to update a "thing" status in the cloud. The code is listed below and I'm seeing some authentication errors. I was hoping someone can correct me if there are any errors in the way I'm using "client.ssConnect". I used a slightly modified WiFiClient.cpp and WiFiClient.h from here. I know its not a library issue since I'm able to connect using MQTT. char aws_endpoint[] = "xxxxxxxxxxxxxx.iot.us-east-1.amazonaws.com"; if (client.sslConnect(aws_endpoint, 443)) { Serial.println("Connected to server"); String PostData = "{\"value1\" : \"testValue\", \"value2\" : \"Hello\", \"value3\" : \"World!\" }"; request = "POST /things/"; request += thingname; request += "/shadow"; request += " HTTP/1.1"; Serial.print("Request:\t"); Serial.println(request); Serial.print("Post data:\t"); Serial.println(PostData); client.println(request); client.println("Host: "); client.println(aws_endpoint); //client.println(":443"); client.println("User-Agent: Energia/1.1"); client.println("Connection: close"); client.println("Content-Type: application/json"); client.print("Content-Length: "); client.println(PostData.length()); client.println(); client.println(PostData); client.println(); } else { Serial.println("Connection failed"); } Serial.println(); // Capture response from the server. (10 second timeout) long timeOut = 5000; long lastTime = millis(); while((millis()-lastTime) < timeOut) { // Wait for incoming response from server while (client.available()) { // Characters incoming from the server char c = client.read(); // Read characters Serial.write(c); } } Here is the output that I see: RootCA found! Client certificates found! Device ID is: 3250763216 Attempting to connect to WiFi network . Connected to WiFi network: ABCDEFGH Waiting for IP IP is: 192.168.1.107 Connected to server Request: POST /things/MyCC3200/shadow HTTP/1.1 Post data: {\"value1\" : \"testValue\", \"value2\" : \"Hello\", \"value3\" : \"World!\" } HTTP/1.1 403 Forbidden content-type: application/json content-length: 91 date: Tue, 26 Jul 2016 11:46:59 GMT x-amzn-RequestId: 4d5388a9-e3c4-460a-b674-c3f971f3330d connection: Keep-Alive x-amzn-ErrorType: ForbiddenException: {"message":"Missing Authentication Token","traceId":"4d5388a9-e3c4-460a-b674-c3f971f3330d"}
  3. I am making an IOT based attendance system using AdafruitFingerprint sensor and CC3200 . My Fingerprint sensor library works better and using 12 and 23 serial ports for Tx and Rx but I am getting problem with my Softwareserial.h library file. I am not sure if it a bug or my mistake could anyone help me solve this issue or suggest me another way to finish this project ? I have uploaded the Library file which I was using from github.com Thank you, Raja.SoftwareSerial.cppSoftwareSerial.h
  4. Hi, I want to set even parity for Modbus communication between an energy meter and cc3200 in Energia, please guide me , how can I set my parity bit? Thanks.
  5. I put together a prototype Booster Pack that attaches to the CC3200 and has a RFID-RC522 card (sometimes called a MIFARE module), two buttons, and two LEDs. The CC3200 is connected to the cloud using Temboo. Currently it sends an email to me with information on the card used when accessed but it would be easy to modify to record time of access, card used, etc and put it into say a spreadsheet. This was a one afternoon plus an evening project for both hardware and software using Energia - very easy to do. The cards have security holes but I am pretty sure they pose too high a technical challenge for my local hooligans. I'm more afraid they might rip it apart and take my CC3200 than anything else. This is the Booster Pack, top view. Here it is attached to an upside down CC3200. In this photo it has been mounted in an enclosure and is reporting a successful read and transmission with the green LED. And if you are really interested, here is the schematic. I am using the RFID library located here. And if you aren't familiar with Temboo, find it here.
  6. I want to set even parity for Modbus communication between an energy meter and cc3200 in Energia, please guide me , how can I set my parity bit?
  7. Hi, I have a project in which I submit data through a custom message protocol. So like message <321;1;5;10.2> is a thing. To do that I use things like String s = "<310;" + String(DeviceID) + String(";") + String(ToestelID)+ String(";") + String(currentUsrID)+ String(";1;") + String(CurrentPowerUsg) + String(";") + String(Temp1) + String(";") + String(Temp2) + String(";") + String(lichtSterkte) + String(">"); But the conversion of double to string fails. this code double ding = 10.15; Serial.print("double print"); Serial.println(ding); Serial.print("Als string"); Serial.println(String(ding)); String s = "<320;" + String(ding) + String(";"); Serial.println(s); gives me this result: Which is fine. However if I include SPI.h and use the same code I get this result I found this out after starting a new project using all the includes from my original project, and eliminating them 1 by 1. So the SPI include does something to my String conversion... I'm using Energie 1.6.10E18 How can I fix this?
  8. Dear All, I am working on a RedbearLab Wifi Micro module (https://redbear.cc/product/wifi/wifi-micro-kit.html) which although connects to the network unfortunately it does not take an IP Address and it sticks at the while loop printing dots. This module used to work about 2 months ago. I have also scanned the network getting the following output. I am trying to connect to "forth public access" but I can see that it shows 3 networks of the same name while it should be only one. In my mobile I can see only one. //-------------------------------------------------------------- Scanning available networks... ** Scan Networks ** number of available networks:12 0) eduroam Signal: -81 dBm Encryption: WPA 1) forth public access Signal: -81 dBm Encryption: None 2) eduroam Signal: -86 dBm Encryption: WPA 3) AMI_WIFI Signal: -87 dBm Encryption: None 4) AMI_Lobby Signal: -86 dBm Encryption: None 5) eduroam Signal: -86 dBm Encryption: WPA 6) HP-Print-9c-Color LaserJet MFP Signal: -53 dBm Encryption: WPA 7) AMI_WIFI Signal: -77 dBm Encryption: None 8) AMI_Lobby Signal: -76 dBm Encryption: None 9) eduroam Signal: -76 dBm Encryption: WPA 10) forth public access Signal: -76 dBm Encryption: None 11) forth public access Signal: -59 dBm Encryption: None //-------------------------------------------------------------- The code I have uploaded is the following .... Any help will be really appreciated. Best, George /* Web client This sketch connects to a website (http://www.google.com) using a WiFi shield. This example is written for a network using WPA encryption. For WEP or WPA, change the Wifi.begin() call accordingly. This example is written for a network using WPA encryption. For WEP or WPA, change the Wifi.begin() call accordingly. Circuit: * WiFi shield attached created 13 July 2010 by dlf (Metodo2 srl) modified 31 May 2012 by Tom Igoe */ #ifndef __CC3200R1M1RGC__ // Do not include SPI for CC3200 LaunchPad #include <SPI.h> #endif #include <WiFi.h> // your network name also called SSID char ssid[] = "forth public access"; // your network password //char password[] = "launchpad"; // if you don't want to use DNS (and reduce your sketch size) // use the numeric IP instead of the name for the server: //IPAddress server(50,62,217,1); // numeric IP for Google (no DNS) char server[] = "energia.nu"; // name address for Google (using DNS) // Initialize the Ethernet client library // with the IP address and port of the server // that you want to connect to (port 80 is default for HTTP): WiFiClient client; void setup() { //Initialize serial and wait for port to open: Serial.begin(115200); delay(5000); // attempt to connect to Wifi network: Serial.print("Attempting to connect to Network named: "); // print the network name (SSID); Serial.println(ssid); // Connect to WPA/WPA2 network. Change this line if using open or WEP network: WiFi.begin(ssid); // WiFi.begin(ssid, password); while ( WiFi.status() != WL_CONNECTED) { // print dots while we wait to connect Serial.print("."); delay(300); } Serial.println("\nYou're connected to the network"); Serial.println("Waiting for an ip address"); while (WiFi.localIP() == INADDR_NONE) { // print dots while we wait for an ip addresss Serial.print("."); delay(300); } Serial.println("\nIP Address obtained"); printWifiStatus(); Serial.println("\nStarting connection to server..."); // if you get a connection, report back via serial: if (client.connect(server, 80)) { Serial.println("connected to server"); // Make a HTTP request: client.println("GET /hello.html HTTP/1.1"); client.println("Host: energia.nu"); client.println("Connection: close"); client.println(); } } void loop() { // if there are incoming bytes available // from the server, read them and print them: while (client.available()) { char c = client.read(); Serial.write(c); } // if the server's disconnected, stop the client: if (!client.connected()) { Serial.println(); Serial.println("disconnecting from server."); client.stop(); // do nothing forevermore: while (true); } } void printWifiStatus() { // print the SSID of the network you're attached to: Serial.print("SSID: "); Serial.println(WiFi.SSID()); // print your WiFi shield's IP address: IPAddress ip = WiFi.localIP(); Serial.print("IP Address: "); Serial.println(ip); // print the received signal strength: long rssi = WiFi.RSSI(); Serial.print("signal strength (RSSI):"); Serial.print(rssi); Serial.println(" dBm"); }
  9. Hi, I am trying to play audio using a speaker with the help of CC3200MOD and Audio Booster Pack. I have got example code in CCS and it is working fine but most of my codes are written in Energia, therefore, I am trying to use Energia to code Audio Booster but I could not find any documents or examples. do you have any example codes on Energia? Kindly, share the link, it would be really very helpful to me. Thanks.
  10. Hi, How can I use UART interrupt in Energia? I tried but could not find any example or sample work.
  11. The CC3200 Launchpad has been sitting on my desk for quite some time. Today I decided to hook it up and see if it can come in handy in any of my projects. I can say one thing... this Launchpad is well designed. Anyway, the camera boosterpack was announced way back and unfortunately it is a TI reference design. The camera itself is a MT9D111($18) module. The Camera BoosterPack has support for Flexi modules too, including the OV3660 camera sensor. The schematic shows a bunch of caps and resistors and a couple of power management chips. Would it be worthwhile getting a PCB assembled? I'm sure TI won't mind if we take their PCB package and replicate it for a group buy. If it is within 5x5 or so, I can have Elecrow do a 20 pcb set. I'm guessing $5 shipped in the US after taking into account 2 way shipping, PCB cost and packaging. CC3200 Camera BoosterPack Wiki page.
  12. As far as using Energia is concerned, is there a significant difference between these two dev kits?
  13. Hello all, I am a french student in development and I work on an IoT school project. As I am a web developer discovering the world of compiled languages, I came here seeking for a bit of help for my project. Long live development !
  14. Hi, I am using CC3200 LaunchXL for configuring LORA semtech 1272 over SPI Driver. I searched a lot example or reference for cc3200 for transmitting message using SPI but unable to get for Energia IDE. I have code for Arduino Lora implementation but unable to run it on Energia. Kindly help me as soon as possible Thanks and regards Rohit
  15. I have a MSP430F5529 module and I have connected CC110 L module to it.. I have another CC3200 Module with CC110L. I wish to send the analog values measured by MSP430F5529 to the CC3200 through RF. Here is my transmitter code(MSP430F5539 and CC110L).. I tried to modify the existing Wireless example.. #include <SPI.h> #include <AIR430BoostFCC.h> #define CMD_OFF 0 #define CMD_ON 1 /** * sControl - control packet. */ struct sControl { unsigned char cmd1;unsigned char cmd; }; struct sControl txControl = { CMD_OFF }; // TX control packet struct sControl rxControl = { CMD_OFF }; // RX control packet int sensorpin=A0; int sensorvalue=0; int u=0,t=0,h=0; char ID[]="ABCD"; void printRxData() { // Print the last received command to the serial port. Serial.print("RX Command: "); Serial.println(rxControl.cmd1); } void setup() { Radio.begin(0x02, CHANNEL_1, POWER_MAX); Serial.begin(9600); pinMode(RED_LED,OUTPUT); } void loop() { if(Radio.receiverOn((unsigned char*)&rxControl,sizeof(rxControl),1000)>0) { if(rxControl.cmd==3) { digitalWrite(RED_LED,HIGH); sensorvalue=analogRead(sensorpin); sensorvalue=map(sensorvalue,0,4096,0,255); char ID[4]="C"; char b[4]; itoa(sensorvalue,b,10); strcat(ID,b); Serial.println(ID); Radio.transmit(ADDRESS_BROADCAST,(unsigned char*)&ID,sizeof(ID)); } digitalWrite(RED_LED,LOW); } } On My receiver side I have a CC3200 with a CC110L booster pack. When the receiver code sends a #include <SPI.h> #include <AIR430BoostFCC.h> // ----------------------------------------------------------------------------- /** * Defines, enumerations, and structure definitions */ #define CMD_OFF 0 #define CMD_ON 1 /** * sControl - control packet. */ struct sControl { unsigned char cmd1;unsigned char cmd; }; // ----------------------------------------------------------------------------- /** * Global data */ struct sControl txControl = { CMD_OFF }; // TX control packet struct sControl rxControl = { CMD_OFF }; // RX control packet int sensorpin=A0; int sensorvalue=0; int u=0,t=0,h=0; char ID[]="XXXX"; // ----------------------------------------------------------------------------- // Debug print functions void printRxData() { // Print the last received command to the serial port. Serial.print("RX Command: "); Serial.println(ID); } int i=0; void setup() { Radio.begin(0x02, CHANNEL_1, POWER_MAX); Serial.begin(9600); pinMode(RED_LED,OUTPUT); pinMode(GREEN_LED,OUTPUT); pinMode(YELLOW_LED,OUTPUT); digitalWrite(RED_LED,LOW); digitalWrite(YELLOW_LED,LOW); digitalWrite(GREEN_LED,LOW); } void loop() { txControl.cmd=i; Radio.transmit(ADDRESS_BROADCAST,(unsigned char*)&txControl,sizeof(txControl)); while (Radio.busy()); if (Radio.receiverOn((unsigned char*)&ID, sizeof(ID), 1000) > 0) { printRxData();digitalWrite(RED_LED,HIGH); } i++; if(i==4) { i=0; } } In receiver code I have a line txControl.cmd=i;.. When the value of i==3 it will ping the cc3200 transmitter to send the analog data back.. i=1 and i=2 are reserved for launchpads with MSP430G2553 and CC110L (They are working really fine).. But the MSP430F5529 is not sending the data back ... On t he Receiver side i will get the data in the format as A70 B30 C123 A is the Identity of the node and the numbers followed after that is the analog value of that node Please help
  16. Dear all, I would like to send over Wifi 350Kb of data using the "WiFiClient.print" API. Could you please let me know what is the maximum length of data I could send in every POST? Is it possible to increase it? Thanks in advance. Best, George
  17. Dear All, I am interested in purchasing the following Wifi module based on CC3200 ... http://www.exp-tech.de/en/redbearlab-wi-fi-micro I have noticed that it can be programmed with Arduino like syntax using Energia. I have three questions please: 1) Is there any API to lower power consumption (hibernated mode) since I would like to send data every 2-3 hours? 2) I would like to send data over SSL and I noticed that it has a crypto engine. Could you please let me know if there is any API to upload certificates? If positive are there any examples in Energia? 3) I looked also at the Wifi examples of Energia 1.6.10 but I did not find any example with SSL. Could you please let me know if there is a library for SSL? Thank you in advance. Best, George
  18. Hello, I have an issue related to SoftwareSerial.h related header file. I place this header file in ..\energia-0101E0017\hardware\cc3200\libraries. But still I got following error: D:\..\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp: In member function 'virtual size_t SoftwareSerial::write(uint8_t)': D:\\..\\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp:450:21: error: 'SREG' was not declared in this scope uint8_t oldSREG = SREG; ^ D:\..\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp:451:7: error: 'cli' was not declared in this scope cli(); // turn off interrupts for a clean txmit ^ D:\..\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp:455:26: error: 'XMIT_START_ADJUSTMENT' was not declared in this scope tunedDelay(_tx_delay + XMIT_START_ADJUSTMENT); ^ D:\..\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp: In member function 'virtual void SoftwareSerial::flush()': D:\..\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp:498:21: error: 'SREG' was not declared in this scope uint8_t oldSREG = SREG; ^ D:\..\energia-0101E0017\hardware\cc3200\libraries\SoftwareSerial\SoftwareSerial.cpp:499:7: error: 'cli' was not declared in this scope cli(); ^ So, please give me a solution. Regards, Pratik
  19. Dear All, I am writing to you because I am experiencing problems with uploading code to CC3200 module. I have purchased the RedbearLab WifiMicro Kit (http://www.exp-tech.de/en/redbearlab-wi-fi-micro-kit) which worked for a few uploads but after that I had the following error: //--------------------------------------------------------------------------------------------------- Sketch uses 2,936 bytes (1%) of program storage space. Maximum is 262,144 bytes. Can't open device Opening COM5 Triggering bootloader.... Getting storage list Bootloader Version: 4 Silicon version ES1.32 or higher Bootloader version is 2, 1, 4, 0 It's a CC3200 device: PG1.33 or higher Switch UART pinmux to APPS --- Connection failed trying to reconnect... (1 attempt) Switch to NWP bootloader complete Load common boot command for PG1.33 or higher Bootloader version is 2, 0, 4, 0 BlockSize is 4096, number of blocks is 16 erasing 13 blocks starting from 0 erasing file "/sys/mcuimg.bin" deleting file "/sys/mcuimg.bin" erase file completed Downloading file "/sys/mcuimg.bin" with size 2936 .Download complete DEBUG cc3200prog.c:2667: write failed DEBUG cc3200prog.c:2673: write failed DEBUG cc3200prog.c:2679: write failed DEBUG cc3200prog.c:2685: write failed //--------------------------------------------------------------------------------------------------- After a few uploads both the WifiMicro and the MK20 Usb dongle stop functioning. I cannot see the MK20 at the Com Ports anymore. So, instead of using the MK20 to upload code I used the FTDI Friend by Adafruit and I connected (GND, CTS, VCC, Tx, Rx, RTS) of the FDTI to the corresponding pins of the WifiMicro (GND, NRST, VDD, Rx, Tx, D13) http://discuss.redbear.cc/t/cc3200-wifi-micro/897. Unfortunately I am getting the following error in uploading ... Any help will be really appreciated! Best, George //---------------------------------------------------------------------------------------------------- Energia: 1.6.10E18 (Windows 8.1), Board: "RedBearLab WiFi Micro w/ CC3200 (80MHz)" Sketch uses 22,576 bytes (8%) of program storage space. Maximum is 262,144 bytes. Opening COM7 Can't open device Triggering bootloader.... Trigger bootloader failed. Retrying... (1 attempt) Trigger bootloader failed. Retrying... (2 attempt) Trigger bootloader failed. Retrying... (3 attempt) Trigger bootloader failed after 3 attempts Failed to trigger bootloader An error occurred while uploading the sketch //----------------------------------------------------------------------------------------------------
  20. Hi everyone, I am trying multitasking energia example provided in energia webpage as well as example available with energia IDE. (http://energia.nu/guide/multitasking/) However, the multitasking is not working. From the codes given in (http://energia.nu/guide/multitasking/) the section with setup/loop par is only operational while operations defined in setupGreenLed() / loopGreenLed() and setupRedLed()/loopRedLed() pairs are not executed. Kindly note that as mentioned each pair is declared as separate task. If multiple task panels does not contain standard setup/loop pair following error is generated: --------------------------------------------------- C:\Users\Tiwari\AppData\Local\Temp\build4973a9ae8611f59efc23ab687631bc5a.tmp/core\core.a(main.cpp.o): In function `main': C:\Users\Tiwari\AppData\Local\Energia15\packages\energia\hardware\cc3200\1.0.2\cores\cc3200/main.cpp:39: undefined reference to `setup' C:\Users\Tiwari\AppData\Local\Energia15\packages\energia\hardware\cc3200\1.0.2\cores\cc3200/main.cpp:42: undefined reference to `loop' collect2.exe: error: ld returned 1 exit status exit status 1 Error compiling for board CC3200-LAUNCHXL (80MHz). ------------------------------------------------------- In essence in multiple tasks atleast one of the task must be declared specifically using "setup/loop" pair and not just any unique pair like " setup_x/loop_x ". For reference I have added the Ino sketches. I am wondering is multitasking requires some specific jumper connections or settings prior to usage. Kindly suggest. Thank you multitask_energia_ex.zip
  21. I am using launchpad cc3200 and i saw the attachInterrupt function. Is there a function to set the priorities of multiple interrupts ? I wish to declare the interrupt priorities of two or more tasks Thanking you
  22. Hi All , I am using cc3200 launchpad and energia as IDE in my application . I wrote some code in that around 16 gpio of cc3200 so some of gpio are toggling automatically can anyone suggest me what modification I need to do ?
  23. Hello all ! Im going to cut straight to the matter. I was trying to follow this tutorial/project : http://jithinkrishnabs.blogspot.no/2015/05/cc3200-wifi-camera-webserver-attractive_13.html Essentially i am using the CC3200 to take a picture and upload it. However the problem im already running into is the following : When i include the adafruit serial camera library i get prompted for <SoftwareSerial.h>. The Adafruit library in question ofcourse uses and needs the SoftwareSerial library. I cannot find any SoftwareSerial library for the CC3200 even though i have sufficient google skills. Using the SoftwareSerial library from the MSP430 obviously doesnt work because its not compatible. I also want to note that im using V17 Energia. This is because when i used the new board management feature in V18 it didnt create a cc3200 folder under "energia\hardware" and as such i had no libraries availible at all. HOWEVER using v17 of energia i now correctly have a cc3200 folder with its coherrent library folder. tldr; Cannot find any usable SoftwareSerial library for cc3200, pls help.
  24. Hi 430h Energia Experts I'm using Energia along with cc3200, i feel using energia is simple and straight since I'm not a "c" expert. I understand that cc3200 has two UART ports (uart0 and uart1) uart0 is in GPIO P01 and P02 - when Jumper J6 and J7 are connected uart1 is in GPIO P57 and P55 - when Jumper J6 and J7 are NOT connected While working on a project with cc3200 I used P01 & P02 as UART1 (Jumper J6 and J7 are connected) to communicate to device1 and now I would like to add another UART based device for which I would like to use UART0 without disturbing UART1 - how to do it? can some one please explain how PIN MUX in energia can be achieved and how to make use of both UART0 and UART1 at the same time in cc3200? Thanks! RRG
  25. Hi, I'm implementing an application for CC3200MOD in Energia 1.6.10E18 environment in which host MCU (Atmel AT76C114) sends jpeg image data (size varies from 1MB to 3MB) over SPI to CC3200MOD which then sends it over WiFi to PC. So Atmel acts as SPI master and CC3200MOD SPI slave. The bottleneck is SPI receive rate in CC3200MOD end. I need to configure host MCU SPI clock to 10.5MHz in order to receive correct data on CC3200MOD. With higher clock rate the data gets corrupted. When receiving valid data the transfer rate is 0.17 MBps. This is way too low for our purposes. I have understood that by using SPI DMA one could receive higher transfer rate. Are there any SPI DMA examples available for SPI slave receive in Energia environment? Does SPI DMA work on SPI slave when SPI master sends data continuously or does it require changes also for the sending procedure from SPI master? Thanks, Yuzzie