RockpiS/dev/libmraa - Revision history

Tan at 09:52, 2 August 2022

2022-08-02T09:52:20Z

Ken: /* Test */

2021-12-09T05:01:10Z

‎Test

Ken: /* I2C test */

2021-10-14T11:02:16Z

‎I2C test

Stephen: /* Install essential packages */

2021-09-08T03:12:08Z

‎Install essential packages

Ken: /* Hardware V1.3 */

2021-08-10T10:59:46Z

‎Hardware V1.3

Ken: /* Hardware V1.3 */

2021-08-10T10:47:10Z

‎Hardware V1.3

Ken at 09:51, 10 August 2021

2021-08-10T09:51:09Z

Stephen: /* Install essential packages */

2020-12-03T02:58:29Z

‎Install essential packages

SimenZhor: /* Install essential packages */ Added "install compiler" since gcc is not preinstalled in the March 2020 image

2020-05-12T08:24:01Z

‎Install essential packages: Added "install compiler" since gcc is not preinstalled in the March 2020 image

SimenZhor: /* ADC test */ missing -o in compile call

2020-05-11T12:42:45Z

‎ADC test: missing -o in compile call

@@ Line 255: / Line 255: @@
   '''rootfstype=ext4'''
   fdtfile=rockchip/rk3308-rock-pi-s.dtb
-  overlays=rk3308-console-on-uart0  '''rk3308-i2c0 rk3308-i2c1 rk3308-i2c3m0'''
+  overlays=rk3308-console-on-uart0  '''rk3308-i2c0 rk3308-i2c1 rk3308-i2c3-m0'''
   rootuuid=37055840-4ec4-444f-979b-9e47ee4bd848
   initrdsize=0x64d1d4

@@ Line 207: / Line 207: @@
      ADC_IN0: AIO
   root@rockpis:~# mraa-gpio set 15 1           #pin15 pull high
-  root@rockpis:~# mraa-gpio set 15 0           #pin15 pull high
+  root@rockpis:~# mraa-gpio set 15 0           #pin15 pull low
 ===== PWM test =====

@@ Line 269: / Line 269: @@
     '''#define I2C_BUS 0'''
   rock@rockpis:~/mraa-examples$ gcc -o i2c_mpu6050 i2c_mpu6050.c  -lmraa
   rock@rockpis:~/mraa-examples$ sudo ./i2c_mpu6050

@@ Line 29: / Line 29: @@
   rock@rockpis:~$ sudo apt-get update
-  rock@rockpis:~$ sudo apt-get install -y rockchip-overlay rockpis-dtbo libmraa # libmraa version: >=0.4
+  rock@rockpis:~$ sudo apt-get install -y rockchip-overlay libmraa # libmraa version: >=0.4
   rock@rockpis:~$ sudo apt-get install -y linux-4.4-rock-pi-s-latest # ROCK Pi S kernel version: >= 4.4.143-47

@@ Line 125: / Line 125: @@
 I2C:
-     PIN23      I2C'''0'''_SDA
+     PIN23      I2C'''0'''_SDA   //must disable SPI2 UART1
-     PIN24      I2C'''0'''_SCL
+     PIN24      I2C'''0'''_SCL   //must disable SPI2 UART1
      PIN3       I2C'''1'''_SCL
      PIN5       I2C'''1'''_SDA
      PIN13      I2C'''3'''m0_SDA
      PIN15      I2C'''3'''m0_SCL
-     PIN40      I2C'''3'''m1_SDA    //must disable SPI1
+     PIN40      I2C'''3'''m1_SDA    //must disable SPI1 UART3
-     PIN39      I2C'''3'''m1_SCL    //must disable SPI1
+     PIN39      I2C'''3'''m1_SCL    //must disable SPI1 UART3
 SPI:
-     PIN19      SPI'''2'''TX        //must disable i2c0
+     PIN19      SPI'''2'''TX        //must disable i2c0 UART1
-     PIN21      SPI'''2'''RX        //must disable i2c0
+     PIN21      SPI'''2'''RX       //must disable i2c0 UART1
      PIN23      SPI'''2'''CLK
      PIN24      SPI'''2'''CSN
-     PIN40      SPI'''1'''TX        //must disable i2c3
+     PIN40      SPI'''1'''TX        //must disable i2c3  UART3
-     PIN42      SPI'''1'''RX        //must disable i2c3
+     PIN42      SPI'''1'''RX        //must disable i2c3  UART3
      PIN41      SPI'''1'''CLK
      PIN39      SPI'''1'''CSN
 UART:
      PIN8       UART'''0'''_TX
      PIN10      UART'''0'''_RX
      PIN23      UART'''1'''_TX
      PIN24      UART'''1'''_RX
-     PIN19      UART'''2'''_RX
+     PIN19      UART'''2'''_RX  //must disable SPI2 i2c0
-     PIN21      UART'''2'''_TX
+     PIN21      UART'''2'''_TX   //must disable SPI2 i2c0
-     PIN40      UART'''3'''_RX
+     PIN40      UART'''3'''_RX  //must disable SPI1 i2c3
-     PIN39      UART'''3'''_TX
+     PIN39      UART'''3'''_TX   //must disable SPI1 i2c3
 PWM:

@@ Line 39: / Line 39: @@
 See ROCK Pi S [[rockpiS/hardware/gpio | GPIO pintout]]. ROCK Pi S has a 26-pin colorful expansion header. Each pin is distinguished by color. mraa define is shown below:
-===== Hardware V12 =====
+===== Hardware V1.2 =====
 GPIO:
@@ Line 80: / Line 80: @@
      PIN19      UART'''2'''_RX
      PIN21      UART'''2'''_TX
 PWM:
@@ Line 144: / Line 217: @@
   root@rockpis:~# cat /boot/uEnv.txt
   verbosity=7
-  overlay_prefix=rockchip
+  '''overlay_prefix=rockchip'''
-  rootfstype=ext4
+  '''rootfstype=ext4'''
   fdtfile=rockchip/rk3308-rock-pi-s.dtb
   overlays=rk3308-console-on-uart0 '''rk3308-pwm1 rk3308-pwm2 rk3308-pwm3'''
@@ Line 171: / Line 244: @@
 ===== I2C test =====
-ROCK Pi S V1.2 provides 3 I2C,There are  I2C0 ,I2C1, I2C3. If you need the I2C function, you can turn on one or more of them.
+ROCK Pi S V1.2 provides 3 I2C,There are  I2C0 ,I2C1, I2C3.
 Firstly, modify the /boot/uEnv.txt file to add the following
@@ Line 177: / Line 252: @@
   root@rockpis:~# cat /boot/uEnv.txt
   verbosity=7
-  overlay_prefix=rockchip
+  '''overlay_prefix=rockchip'''
-  rootfstype=ext4
+  '''rootfstype=ext4'''
   fdtfile=rockchip/rk3308-rock-pi-s.dtb
-  overlays=rk3308-console-on-uart0  '''rk3308-i2c0 rk3308-i2c1 rk3308-i2c3'''
+  overlays=rk3308-console-on-uart0  '''rk3308-i2c0 rk3308-i2c1 rk3308-i2c3m0'''
   rootuuid=37055840-4ec4-444f-979b-9e47ee4bd848
   initrdsize=0x64d1d4
@@ Line 213: / Line 288: @@
 ===== UART test =====
-ROCK Pi S V1.2 provides 3 UART,There are  '''uart0''' ,'''uart1''', '''uart2'''. If you need the uatr function, you can turn on one or more of them.
+ROCK Pi S V1.2 provides 3 UART,There are  '''uart0''' ,'''uart1''', '''uart2'''.
 Firstly, Disable console and enable '''uart0''' for uart test.modify the '''/boot/uEnv.txt''' file to add the following
@@ Line 219: / Line 296: @@
   root@rockpis:~# cat /boot/uEnv.txt
   verbosity=7
-  overlay_prefix=rockchip
+  '''overlay_prefix=rockchip'''
-  rootfstype=ext4
+  '''rootfstype=ext4'''
   fdtfile=rockchip/rk3308-rock-pi-s.dtb
-  '''overlays=rk3308-uart0 rk3308-uart1 rk3308-uart2'''
+  '''overlays=rk3308-uart0 rk3308-uart1 rk3308-uart2 rk3308-uart3'''
   '''console='''
   rootuuid=c3800af9-fa58-4fb3-bb56-e52fd04837ba
@@ Line 232: / Line 309: @@
 Here set console to NULL value.
-then reboot . use ssh connect to rockpis,we must have 2 windows,one is for send data,anothor is for receive.
+then reboot . use '''ssh''' connect to rockpis,we must have '''2 windows''',one is for send data,anothor is for receive.
 send command follow:
-  rock@rockpis:~$ sudo mraa-uart dev 0 baud 1500000 send  radxa
+  rock@rockpis:~$ sudo mraa-uart '''dev 0''' baud 1500000 send  radxa
 Another window sets the baud  1500000 and receives the data
@@ Line 242: / Line 319: @@
 receive command follow:
-  rock@rockpis:~$ sudo mraa-uart dev 0 baud 1500000 recv  1000
+  rock@rockpis:~$ sudo mraa-uart '''dev 0''' baud 1500000 recv  1000
   radxa

@@ Line 31: / Line 31: @@
   rock@rockpis:~$ sudo apt-get install -y rockchip-overlay rockpis-dtbo libmraa # libmraa version: >=0.4
   rock@rockpis:~$ sudo apt-get install -y linux-4.4-rockpis-latest # ROCK Pi S kernel version: >= 4.4.143-47
 ==== Enable interface ====

@@ Line 344: / Line 344: @@
 <pre>
-rock@rockpis:~/mraa-examples$ gcc aio aio.c -lmraa
+rock@rockpis:~/mraa-examples$ gcc -o aio aio.c -lmraa
 rock@rockpis:~/mraa-examples$ sudo ./aio
 ADC A0 read 1A5 - 421