120 lines
2.5 KiB
C
120 lines
2.5 KiB
C
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/*
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Copyright (C) 2016 Stephane D'Alu
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "ch.h"
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#include "hal.h"
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#include "shell.h"
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#include "chprintf.h"
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#include <stdlib.h>
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/*
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* Command Random
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*/
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#define RANDOM_BUFFER_SIZE 1024
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static uint8_t random_buffer[RANDOM_BUFFER_SIZE];
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static void cmd_random(BaseSequentialStream *chp, int argc, char *argv[]) {
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uint16_t size = 16;
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uint16_t i = 0;
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uint8_t nl = 0;
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if (argc > 0) {
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size = atoi(argv[0]);
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}
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if (size > RANDOM_BUFFER_SIZE) {
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chprintf(chp, "random: maximum size is %d.\r\n", RANDOM_BUFFER_SIZE);
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return;
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}
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chprintf(chp, "Fetching %d random byte(s):\r\n", size);
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rngStart(&RNGD1, NULL);
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rngWrite(&RNGD1, random_buffer, size, TIME_INFINITE);
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rngStop(&RNGD1);
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for (i = 0 ; i < size ; i++) {
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chprintf(chp, "%02x ", random_buffer[i]);
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if ((nl = (((i+1) % 20)) == 0))
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chprintf(chp, "\r\n");
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}
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if (!nl)
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chprintf(chp, "\r\n");
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}
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/*
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* Shell
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*/
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static THD_WORKING_AREA(shell_wa, 1024);
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static const ShellCommand commands[] = {
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{"random", cmd_random},
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{NULL, NULL}
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};
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static const ShellConfig shell_cfg1 = {
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(BaseSequentialStream *)&SD1,
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commands
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};
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/*
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* Application entry point.
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*/
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int main(void) {
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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halInit();
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chSysInit();
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/*
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* Serial device
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*/
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SerialConfig serial_config = {
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.speed = 115200,
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.tx_pad = UART_TX,
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.rx_pad = UART_RX,
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};
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sdStart(&SD1, &serial_config);
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/*
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* Shell manager initialization.
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*/
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shellInit();
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chThdCreateStatic(shell_wa, sizeof(shell_wa), NORMALPRIO,
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shellThread, (void *)&shell_cfg1);
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/*
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* Normal main() thread activity, in this demo it does nothing.
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*/
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while (true) {
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chThdSleepMilliseconds(500);
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palTogglePad(IOPORT1, LED1);
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}
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}
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