NUCLEO I2C SLAVE

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API Documentation at this revision

Comitter:
capriele
Date:
Wed Mar 01 08:07:32 2017 +0000
Commit message:
NUCLEO I2C SLAVE

Changed in this revision

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README.md Show annotated file Show diff for this revision Revisions of this file
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Wed Mar 01 08:07:32 2017 +0000
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+.build
+.mbed
+projectfiles
+*.py*
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Wed Mar 01 08:07:32 2017 +0000
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+# Getting started with Blinky on mbed OS
+
+This guide reviews the steps required to get Blinky working on an mbed OS platform.
+
+Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
+
+## Import the example application
+
+From the command-line, import the example:
+
+```
+mbed import mbed-os-example-blinky
+cd mbed-os-example-blinky
+```
+
+### Now compile
+
+Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
+
+```
+mbed compile -m K64F -t ARM
+```
+
+Your PC may take a few minutes to compile your code. At the end, you see the following result:
+
+```
+[snip]
++----------------------------+-------+-------+------+
+| Module                     | .text | .data | .bss |
++----------------------------+-------+-------+------+
+| Misc                       | 13939 |    24 | 1372 |
+| core/hal                   | 16993 |    96 |  296 |
+| core/rtos                  |  7384 |    92 | 4204 |
+| features/FEATURE_IPV4      |    80 |     0 |  176 |
+| frameworks/greentea-client |  1830 |    60 |   44 |
+| frameworks/utest           |  2392 |   512 |  292 |
+| Subtotals                  | 42618 |   784 | 6384 |
++----------------------------+-------+-------+------+
+Allocated Heap: unknown
+Allocated Stack: unknown
+Total Static RAM memory (data + bss): 7168 bytes
+Total RAM memory (data + bss + heap + stack): 7168 bytes
+Total Flash memory (text + data + misc): 43402 bytes
+Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
+```
+
+### Program your board
+
+1. Connect your mbed device to the computer over USB.
+1. Copy the binary file to the mbed device.
+1. Press the reset button to start the program.
+
+The LED on your platform turns on and off.
+
+## Export the project to Keil MDK, and debug your application
+
+From the command-line, run the following command:
+
+```
+mbed export -m K64F -i uvision
+```
+
+To debug the application:
+
+1. Start uVision.
+1. Import the uVision project generated earlier.
+1. Compile your application, and generate an `.axf` file.
+1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
+1. Set breakpoints, and start a debug session.
+
+![Image of uVision](img/uvision.png)
+
+## Troubleshooting
+
+1. Make sure `mbed-cli` is working correctly and its version is `>1.0.0`
+
+ ```
+ mbed --version
+ ```
+
+ If not, you can update it:
+
+ ```
+ pip install mbed-cli --upgrade
+ ```
+
+2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32 KB restriction on code size.
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Binary file img/uvision.png has changed
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Mar 01 08:07:32 2017 +0000
@@ -0,0 +1,27 @@
+#include <mbed.h>
+
+I2CSlave slave(D14, D15);
+
+int main() {
+   slave.frequency(100000); //Set the clock frequency
+   char buf[1];
+   char msg[1];
+   msg[0] = 0x00;
+   int j = 1;
+   slave.address(0x07);
+   while (1) {
+       int i = slave.receive();
+       switch (i) {
+           case I2CSlave::ReadAddressed:
+               slave.write(msg, strlen(msg) + 1); // Includes null char
+               break;
+           case I2CSlave::WriteAddressed:
+               slave.read(buf, 1);
+               printf("Read A: %02X\n", buf[0]);
+               break;
+       }
+       buf[0] = 0;    // Clear buffer
+       msg[0] = j;
+       j++;
+   }
+}
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Mar 01 08:07:32 2017 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#5faf4b26c5954d15c7c1cccac6498e0c690ad101