nrf24l01_8c-source.html

MSP acquires data and sends through USB to PC. Check the link for PC capture software and project d

<a name="l00134"></a>00134             <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(command);
<a name="l00135"></a>00135             <span class="keywordflow">for</span> (j = 0; j &lt; 5; j++)
<a name="l00136"></a>00136             {
<a name="l00137"></a>00137                 temp = <a class="code" href="nrf24l01_8c.html#713aeff525b77ebec6a0bd0067e94899">RX_ADDRESS_P0</a>[j];
<a name="l00138"></a>00138                 <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(temp);
<a name="l00139"></a>00139             }
<a name="l00140"></a>00140             <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00141"></a>00141             <span class="keywordflow">return</span> <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a>;
<a name="l00142"></a>00142         }
<a name="l00143"></a>00143 
<a name="l00144"></a>00144         <span class="keywordflow">if</span> (addr == <a class="code" href="nrf24l01_8h.html#d4b44f18e4b27b07af84783d8f11726d">RX_ADDR_P1</a>)
<a name="l00145"></a>00145         {
<a name="l00146"></a>00146             <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(command);
<a name="l00147"></a>00147             <span class="keywordflow">for</span> (j = 0; j &lt; 5;j++)
<a name="l00148"></a>00148             {
<a name="l00149"></a>00149                 temp = <a class="code" href="nrf24l01_8c.html#8c2490e789bd3a76ef4e5f56367c1344">RX_ADDRESS_P1</a>[j];
<a name="l00150"></a>00150                 <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(temp);
<a name="l00151"></a>00151             }
<a name="l00152"></a>00152             <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00153"></a>00153             <span class="keywordflow">return</span> <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a>;
<a name="l00154"></a>00154         }
<a name="l00155"></a>00155 
<a name="l00156"></a>00156         <span class="keywordflow">if</span> (addr == <a class="code" href="nrf24l01_8h.html#a734c6e08b9f794436eacbabe466a6c4">TX_ADDR</a>)
<a name="l00157"></a>00157         {
<a name="l00158"></a>00158             <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(command);
<a name="l00159"></a>00159             <span class="keywordflow">for</span> (j = 0; j &lt; 5;j++)
<a name="l00160"></a>00160             {
<a name="l00161"></a>00161                 temp = <a class="code" href="nrf24l01_8c.html#dd5a3afac408f7f5cd5fa4258e50c7a3">TX_ADDRESS</a>[j];
<a name="l00162"></a>00162                 <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(temp);
<a name="l00163"></a>00163             }
<a name="l00164"></a>00164             <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00165"></a>00165             <span class="keywordflow">return</span> <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a>;
<a name="l00166"></a>00166         }
<a name="l00167"></a>00167         <span class="keywordflow">else</span>
<a name="l00168"></a>00168         {
<a name="l00169"></a>00169             temp = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(command);
<a name="l00170"></a>00170             <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(data_byte);
<a name="l00171"></a>00171             <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00172"></a>00172             <span class="keywordflow">return</span> temp;
<a name="l00173"></a>00173         }
<a name="l00174"></a>00174     }
<a name="l00175"></a>00175 
<a name="l00176"></a>00176     <span class="keywordflow">return</span> 1;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178 
<a name="l00179"></a><a class="code" href="nrf24l01_8c.html#15f5e33b83469e385132981afe4dd382">00179</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="nrf24l01_8c.html#15f5e33b83469e385132981afe4dd382">SPI_Send_command_without_ADDR</a> (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> cmd, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> data_byte)
<a name="l00180"></a>00180 {
<a name="l00181"></a>00181     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp = 0;
<a name="l00182"></a>00182     <a class="code" href="nrf24l01_8c.html#3a1123d2eede99fdf677f173602826ee">CSN_LOW</a>();
<a name="l00183"></a>00183     <span class="keywordflow">if</span> (cmd == <a class="code" href="nrf24l01_8h.html#462d8c2314b823b724574c1ca73225a6">R_RX_PAYLOAD</a>)
<a name="l00184"></a>00184     {
<a name="l00185"></a>00185         <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(cmd);
<a name="l00186"></a>00186         temp = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(<a class="code" href="nrf24l01_8h.html#7b5a6dc6c173a198aedd1eb7808d6992">NRF_NOP</a>);
<a name="l00187"></a>00187         <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00188"></a>00188         <span class="keywordflow">return</span> temp;
<a name="l00189"></a>00189     }
<a name="l00190"></a>00190     <span class="keywordflow">if</span> (cmd == <a class="code" href="nrf24l01_8h.html#fd12673bc8ca8559b0eee395e8845982">W_TX_PAYLOAD</a>)
<a name="l00191"></a>00191     {
<a name="l00192"></a>00192         <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(cmd);
<a name="l00193"></a>00193         <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(data_byte);
<a name="l00194"></a>00194         <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00195"></a>00195         <span class="keywordflow">return</span> <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a>;
<a name="l00196"></a>00196     }
<a name="l00197"></a>00197     <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#6b137ec6ccdeb9cd7c3ff97fc2f57247">SPI_SendByte</a>(cmd);
<a name="l00198"></a>00198     <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00199"></a>00199     <span class="keywordflow">return</span> <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a>;
<a name="l00200"></a>00200 
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202 
<a name="l00203"></a>00203 <span class="comment">// Setting for nRF chip</span>
<a name="l00204"></a><a class="code" href="nrf24l01_8h.html#e6d15fab14878ef090842f6d2b28fd70">00204</a> <span class="keywordtype">void</span> <a class="code" href="nrf24l01_8c.html#e6d15fab14878ef090842f6d2b28fd70">NRF_init</a> (<span class="keywordtype">void</span>)
<a name="l00205"></a>00205 {
<a name="l00207"></a>00207     <span class="comment">// Initialize SPI interface</span>
<a name="l00209"></a>00209 <span class="comment"></span>    <span class="comment">// master mode, data valid on rising edge, msb first</span>
<a name="l00210"></a>00210     UCA0CTL0 = UCCKPH + UCMST + UCMSB + UCSYNC;
<a name="l00211"></a>00211 
<a name="l00212"></a>00212     <span class="comment">// clock -&gt; SMCLK</span>
<a name="l00213"></a>00213     UCA0CTL1 = UCSSEL1;
<a name="l00214"></a>00214 
<a name="l00215"></a>00215     <span class="comment">// Baud Rate</span>
<a name="l00216"></a>00216     UCA0BR0 = 0x02;
<a name="l00217"></a>00217     UCA0BR1 = 0x00;
<a name="l00218"></a>00218     
<a name="l00219"></a>00219     <span class="comment">//UCA0MCTL = 0x00;</span>
<a name="l00220"></a>00220 
<a name="l00221"></a>00221     P7SEL |= BIT1 | BIT2 | BIT3;    <span class="comment">// P7.1-3 SPI option select</span>
<a name="l00222"></a>00222     P7DIR |= BIT1 | BIT3;           <span class="comment">// P7.1 (MOSI) and P7.3 (CLK) are outputs</span>
<a name="l00223"></a>00223     P7DIR &amp;= ~BIT2;                 <span class="comment">// P7.2 (MISO) is input</span>
<a name="l00224"></a>00224     P8DIR |= BIT3 | BIT4;           <span class="comment">// P8.3 (#CS) and P8.4 (CE) are outputs</span>
<a name="l00225"></a>00225     P8DIR &amp;= ~BIT5;                 <span class="comment">// P8.5 (IRQ) is input</span>
<a name="l00226"></a>00226 
<a name="l00227"></a>00227     <span class="comment">// Disable CS</span>
<a name="l00228"></a>00228     <a class="code" href="nrf24l01_8c.html#a1524daee320c91b750c08cd1b2e0766">CSN_HIGH</a>();
<a name="l00229"></a>00229 
<a name="l00231"></a>00231     <span class="comment">// Configure chip nRF24L01</span>
<a name="l00233"></a>00233 <span class="comment"></span>
<a name="l00234"></a>00234     <span class="comment">// Discard transmission</span>
<a name="l00235"></a>00235     <a class="code" href="nrf24l01_8c.html#2e2fcc38fc7a1cbb847a00bf8bb59d18">CE_LOW</a>();
<a name="l00236"></a>00236 
<a name="l00237"></a>00237     <span class="comment">//Write CONFIG register (addres - 0x00)</span>
<a name="l00238"></a>00238     <span class="comment">//00001010 - CRC enable, power-up, RX</span>
<a name="l00239"></a>00239     <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#af5c055cad67312ebfb0361c281cbd34">SPI_Send_command_with_ADDR</a>(<a class="code" href="nrf24l01_8h.html#3b68b214d5753039d2c156ad57cd7153">W_REGISTER</a>, <a class="code" href="nrf24l01_8h.html#37bdababe611f11d0d4c5ecdadb31487">CONFIG_REG_ADDR</a>, 0x0B);
<a name="l00240"></a>00240     <span class="comment">//Write RX_ADDR_P0 register -&gt; Set receive address data Pipe0 -&gt; address in RX_ADDRESS_P0 array</span>
<a name="l00241"></a>00241     <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#af5c055cad67312ebfb0361c281cbd34">SPI_Send_command_with_ADDR</a>(<a class="code" href="nrf24l01_8h.html#3b68b214d5753039d2c156ad57cd7153">W_REGISTER</a>, <a class="code" href="nrf24l01_8h.html#dc82a1b0dee303d8b783b9b9a89ae5aa">RX_ADDR_P0</a>, <a class="code" href="nrf24l01_8h.html#7b5a6dc6c173a198aedd1eb7808d6992">NRF_NOP</a>);
<a name="l00242"></a>00242     <span class="comment">//Write RX_ADDR_P1 register -&gt; Set receive address data Pipe1 -&gt; address in RX_ADDRESS_P1 array</span>
<a name="l00243"></a>00243     <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#af5c055cad67312ebfb0361c281cbd34">SPI_Send_command_with_ADDR</a>(<a class="code" href="nrf24l01_8h.html#3b68b214d5753039d2c156ad57cd7153">W_REGISTER</a>, <a class="code" href="nrf24l01_8h.html#d4b44f18e4b27b07af84783d8f11726d">RX_ADDR_P1</a>, <a class="code" href="nrf24l01_8h.html#7b5a6dc6c173a198aedd1eb7808d6992">NRF_NOP</a>);
<a name="l00244"></a>00244     <span class="comment">//Write TX_ADDR register -&gt; Transmit address. Used for a PTX device only. Address in TX_ADDRESS array</span>
<a name="l00245"></a>00245     <a class="code" href="nrf24l01_8c.html#54849a1c58ce64ba16a055ad9555a027">status</a> = <a class="code" href="nrf24l01_8c.html#af5c055cad67312ebfb0361c281cbd34">SPI_Send_command_with_ADDR</a>(<a class="code" href="nrf24l01_8h.html#3b68b214d5753039d2c156ad57cd7153">W_REGISTER</a>, <a class="code" href="nrf24l01_8h.html#a734c6e08b9f794436eacbabe466a6c4">TX_ADDR</a>, <a class="code" href="nrf24l01_8h.html#7b5a6dc6c173a198aedd1eb7808d6992">NRF_NOP</a>);
<a name="l00246"></a>00246     <span class="comment">//Write RX_PW_P0 register -&gt; Set number of bytes in RX payload in data pipe0 -&gt; 1 byte</span>