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fix example code in QSPI.h #7991

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Merged
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Sep 7, 2018
Merged

fix example code in QSPI.h #7991

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18 changes: 13 additions & 5 deletions drivers/QSPI.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,19 +44,27 @@ namespace mbed {
*
* #include "mbed.h"
*
* #define CMD_WRITE 0x02
* #define CMD_READ 0x03
* #define ADDRESS 0x1000
*
* // hardware ssel (where applicable)
* QSPI qspi_device(QSPI_PIN_IO0, QSPI_PIN_IO1, QSPI_PIN_IO2, QSPI_PIN_IO3, QSPI_PIN_SCK, QSPI_PIN_CSN); // io0, io1, io2, io3, sclk, ssel
* QSPI qspi_device(QSPI_FLASH1_IO0, QSPI_FLASH1_IO1, QSPI_FLASH1_IO2, QSPI_FLASH1_IO3, QSPI_FLASH1_SCK, QSPI_FLASH1_CSN); // io0, io1, io2, io3, sclk, ssel
*
*
* int main() {
* char tx_buf[] = { 0x11, 0x22, 0x33, 0x44 };
* char rx_buf[4];
* int buf_len = sizeof(tx_buf);
*
* int result = qspi_device.write( 0x12 , 0x100000 , 0 , tx_buf, &buf_len );
* if( !result ) printf("Write failed");
* int result = qspi_device.read( 0x13 , 0x100000 , 0 , rx_buf, &buf_len );
* if( !result ) printf("Read failed");
* qspi_status_t result = qspi_device.write(CMD_WRITE, 0, ADDRESS, tx_buf, &buf_len);
* if (result != QSPI_STATUS_OK) {
* printf("Write failed");
* }
* result = qspi_device.read(CMD_READ, 0, ADDRESS, rx_buf, &buf_len);
* if (result != QSPI_STATUS_OK) {
* printf("Read failed");
* }
*
* }
* @endcode
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