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author | Dean Camera <dean@fourwalledcubicle.com> | 2009-12-23 12:54:15 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-12-23 12:54:15 +0000 |
commit | cda88cf97c63c26229578e17184bedcdc0cabc77 (patch) | |
tree | dc6b2659faa8056d039c06b19c10ae023df87d4e /Projects/AVRISP/AVRISP.txt | |
parent | df31b1fd5b0bfbf02a766d32e23a7af075bf4911 (diff) | |
download | lufa-cda88cf97c63c26229578e17184bedcdc0cabc77.tar.gz lufa-cda88cf97c63c26229578e17184bedcdc0cabc77.tar.bz2 lufa-cda88cf97c63c26229578e17184bedcdc0cabc77.zip |
Start of implementation of the low level TPI programming protocol in the AVRISP project.
Diffstat (limited to 'Projects/AVRISP/AVRISP.txt')
-rw-r--r-- | Projects/AVRISP/AVRISP.txt | 61 |
1 files changed, 59 insertions, 2 deletions
diff --git a/Projects/AVRISP/AVRISP.txt b/Projects/AVRISP/AVRISP.txt index 35cf93770..20e0cce0e 100644 --- a/Projects/AVRISP/AVRISP.txt +++ b/Projects/AVRISP/AVRISP.txt @@ -62,10 +62,10 @@ * without an ADC converter, VTARGET will report at a fixed 5V level.
*
* When compiled for the XPLAIN board target, this will automatically configure itself for the correct connections to the
- * XPLAIN's XMEGA AVR, and will enable PDI only programming support (since ISP mode is not needed).
+ * XPLAIN's XMEGA AVR, and will enable PDI only programming support (since ISP and TPI modes are not needed).
*
* While this application can be compiled for USB AVRs with as little as 8KB of FLASH, for full functionality 16KB or more
- * of FLASH is required. On 8KB devices, either ISP or PDI programming support can be disabled to reduce program size.
+ * of FLASH is required. On 8KB devices, ISP, PDI or TPI programming support can be disabled to reduce program size.
*
* \section Sec_ISP ISP Connections
* Connections to the device for SPI programming (when enabled):
@@ -155,6 +155,50 @@ * <b><sup>1</sup></b> <i>When PDI_VIA_HARDWARE_USART is set, the AVR's Tx and Rx become the DATA line when connected together
* via a pair of 300 ohm resistors, and the AVR's XCK pin becomes CLOCK.</i>
*
+ * \section Sec_TPI TPI Connections
+ * Connections to the device for TPI programming<b><sup>1</sup></b> (when enabled):
+ *
+ * <table>
+ * <tr>
+ * <td><b>Programmer Pin:</b></td>
+ * <td><b>Target Device Pin:</b></td>
+ * <td><b>PDI 6 Pin Layout:</b></td>
+ * </tr>
+ * <tr>
+ * <td>MISO</td>
+ * <td>DATA</td>
+ * <td>1</td>
+ * </tr>
+ * <tr>
+ * <td>ADCx <b><sup>1</sup></b></td>
+ * <td>VTARGET</td>
+ * <td>2</td>
+ * </tr>
+ * <tr>
+ * <td>SCLK</td>
+ * <td>CLOCK</td>
+ * <td>3</td>
+ * </tr>
+ * <tr>
+ * <td>N/A</td>
+ * <td>N/A</td>
+ * <td>4</td>
+ * </tr>
+ * <tr>
+ * <td>PORTx.y <b><sup>2</sup></b></td>
+ * <td>/RESET</td>
+ * <td>5</td>
+ * </tr>
+ * <tr>
+ * <td>GND</td>
+ * <td>GND</td>
+ * <td>6</td>
+ * </tr>
+ * </table>
+ *
+ * <b><sup>1</sup></b> <i>When TPI_VIA_HARDWARE_USART is set, the AVR's Tx and Rx become the DATA line when connected together
+ * via a pair of 300 ohm resistors, and the AVR's XCK pin becomes CLOCK.</i>
+ *
* \section SSec_Options Project Options
*
* The following defines can be found in this project, which can control the project behaviour when defined, or changed in value.
@@ -204,6 +248,11 @@ * <td>Define to enable XMEGA PDI programming protocol support. <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
* <tr>
+ * <td>ENABLE_TPI_PROTOCOL</td>
+ * <td>Makefile CDEFS</td>
+ * <td>Define to enable 6-PIN ATTINY TPI programming protocol support. <i>Ignored when compiled for the XPLAIN board.</i></td>
+ * </tr>
+ * <tr>
* <td>PDI_VIA_HARDWARE_USART</td>
* <td>Makefile CDEFS</td>
* <td>Define to force the PDI protocol (when enabled) to use the much faster hardware USART instead of bit-banging to
@@ -211,5 +260,13 @@ * seperate ISP and PDI programming headers) but increases programming speed dramatically.
* <i>Ignored when compiled for the XPLAIN board.</i></td>
* </tr>
+ * <tr>
+ * <td>TPI_VIA_HARDWARE_USART</td>
+ * <td>Makefile CDEFS</td>
+ * <td>Define to force the TPI protocol (when enabled) to use the much faster hardware USART instead of bit-banging to
+ * match the official AVRISP pinout. This breaks pinout compatibility with the official AVRISP MKII (and requires
+ * seperate ISP and TPI programming headers) but increases programming speed dramatically.
+ * <i>Ignored when compiled for the XPLAIN board.</i></td>
+ * </tr>
* </table>
*/
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